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Luftfahrtgeschichte: Bibliography of Aeronautics 1929 von Paul Brockett

» Übersicht zur Literatur der Luftfahrtgeschichte

Bibliography of Aeronautics
Die umfangreiche und international angelegte Bibliographie zur Luftfahrtgeschichte, die unter dem Titel "Bibliography of Aeronautics" vom US-amerikanischen Autor Paul Brockett verfaßt und über die Smithsonian Institution ("Smithsonian") herausgegeben bzw. über die Smithsonian Institution Libraries veröffentlicht wurde, umfaßt im zwölften Band eine Bestandsaufnahme der internationalen Luftfahrtliteratur im Jahre 1929.

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BIBLIOGRAPHY OF AERONAUTICS

1929

NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON : 1930

For sale by the Superintendent of Documents, Washington, D. C.

Price 35 cents

INTRODUCTION

This Bibliography of Aeronautics for 1929 covers the aeronautical literature published from January 1 to December 31, 1929. The first Bibliography of Aeronautics was published by the Smithsonian Institution as Volume 55 of the Smithsonian Miscellaneous Collections and covered the material published prior to June 30, 1909. Supplementary volumes of the Bibliography of Aeronautics for the subsequent years have been published by the National Advisory Committee for Aeronautics. The last preceding volume was for the calendar year 1928.

As in the previous volumes, citations of the publications of all nations are included in the languages in which these publications originally appeared. The arrangement is in dictionary form with author and subject entry, and one alphabetical arrangement. Detail in the matter of subject reference has been omitted on account of the cost of presentation, but an attempt has been made to give sufficient cross reference for research in special lines.

Joseph S. Ames, Chairman, National Advisory Committee for Aeronautics. December 30, 1930.

m

ABBREVIATIONS

Aer. Eng. Suppl. The Aeroplane_______The Aeroplane— . . . Aeronautical

Engineering Supplement to The Aeroplane, London.

Aer. Res. Comm., Rep. Mem_________Aeronautical Research Committee, Reports and Memoranda, London.

Aeron. Journ_______________________Aeronautical Journal, London.

Aeronautics, Techn. Rep. Aer. Res. Aeronautics.. Technical Report of the Comm. Aeronautical Research Committee,

London.

Amer. Mach________________________American Machinist, New York.

Amer. Gas. Eng. Journ______________American Gas Engineering Journal,

New York.

Ann. Soc. Met. France_______________Annuaire, Société Météorologique de

France, Paris.

Atti. Assoc. Ital. Aerotecn____________Atti dell'Associazione Italiana di Aero-

technica, Roma.

Aut. Eng___________________________Automotive Engineering, New York.

Aut. Mot. Flugw____________________Automobil-Motorrad-Flugwesen, Berlin.

Automotive Ind_____________________Automotive Industries, New York.

Aviat. Aer. Eng_____________________Aviation and Aeronautical Engineering,

New York.

Bull. Aero-Club Suisse_______________ Bulletin, Aero Club Suisse, Berne.

Bull. Exper. Depart. Airplane Eng. The Bulletin of the Experimental De-Div. partment, Airplane Engineering Divi-

sion, U. S. A., Dayton, Ohio.

Bull. Soc. Enc. Ind. Nat_____________Bulletin de la Société d'Encouragement

pour l'Industrie Nationale, Paris.

Deutsche Luftf. Zeitschr_____________Deutsche Luftfahrer Zeitschrift, Berlin.

Electr. Railw. Jour__________________Electric Railway Journal, New York.

Ind. Eng. Chem_____________________Industrial and Engineering Chemistry,

Washington, D. C.

Jahrb. 1929, Deutsch. Versuchsanstalt Jarbuch 1929 der Deutschen Versuchfür Luftfahrt, E. V., Berlin-Adlers- sanstalt für Luftfahrt, E. V., Berlinhof. Adlershof, München.

Journ. Amer. Inst. Electr. Eng_______Journal of the American Institute of

Electrical Engineers, New York. Journ. Amer. Soc. Mech. Eng_________Journal of the American Society of Mechanical Engineers, New York; Journ. Frankl. Inst__________________Journal of the Franklin Institute, Philadelphia.

Journ. Mil. Serv. Inst---------------Journal of the Military Service Institution, Governors Island, New York.

Journ. Roy. Aer. Soc----------------Journal of the Royal Aeronautical Society, London.

Journ. Roy. Soc. Arts________________Journal of the Royal Society of Arts,

London.

Journ. Soc. Automotive Engineers_____Journal of the Society of Automotive

Engineers, New York.

Journ. United States Art_____________Journal of the United States Artillery,

Fortress Monroe, Va.

Mech. Eng------------------------- Mechanical Engineering, New York.

Nat. Geog. Mag--------------------National Geographie Magazine, Washington, D. C.

Pop. Mech-------------------------Popular Mechanics, Chicago.

Pop. Sei. Monthly.....----..........Popular Science Monthly, New York.

Proc. Amer. Inst. Electr. Eng_________ Proceedings of the American Society of

Electrical Engineers, New York.

Proc. U. S. Nav. Inst________________ Proceedings of the United States Naval

Institute, Annapolis, Md.

Quart. Journ. Roy. Met. Soc_________Quarterly Journal of the Royal Meteorological Society, London.

Rend. Istituto Sper. Aer_____________Rendiconto dell'Istituto Sperimentale

Aeronautico; Roma.

Rend. Teen. Dir. Sup. Genio Costr. Commissariato dell'Aeronautica. In-Aeron. tendenza Generale. Rendiconti Tec-

nici della Direzione Superiore del Genio e delle Costruzioni Aeronautiche. Roma.

Rév. Gén. Seien_____________________ Révue Generale Scientifique, Paris.

Riv. Ital. Aeron_____________________ Rivista Italiana Aeronautica, Roma.

Sat. Even. Post.____________________Saturday Evening Post, Philadelphia,

Pa.

Scient. Amer_______________________Scientific American, New York.

Techn. Berichte_____________________Technische Berichte, Charlottenburg.

Zeitschr. Angew. Math. Mech________Zeitschrift fuer Angewandte Mathematik und Mechanik, Berlin.

Zeitschr. Flugt. Motorluftsch________Zeitschrift für Flugtechnik und Motor-

luftschifffahrt,_München.

Zeitschr. Österr. Ing. Arch. Ver_______Zeitschrift des Öesterreichischen Inge-

nieuer- und Architekten- Vereines, Wien.

Zeitschr. Ver. deutscher Ing__________Zetischrift des Vereines deutscher Ingenieure, Berlin.

BIBLIOGRAPHY OF AERONAUTICS

1929

By PAUL BROCKETT

1

BIBLIOGRAPHY OF AERONAUTICS, 1929

By Paul Brockett

A. B. C. A. B. C. " Robin." A new cabin single-seater with " Scorpion " engine. Flight, Vol. 21, No. 22 (May 30, 1929), London, pp. 441-445, ill., diagr.

- The A. B. C. "Robin" (British). A single-seat cabin monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 101, Sept. 20, 1929, Washington, September, 1929, pp. 7, ills.

A. B. Flyindustri. The A. B. Flyindustri " K 37" (Swedish Junkers). A low-wing all-metal military airplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 104, Oct. 28, 1929, Washington, October, 1929, pp. 8, ills.

- The " K 47 " of the A. B. Flyindustri. An armored pursuit monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 100, Sept. 6, 1929, Washington, August, 1929, pp. 12, ills.

A. D. 1. The A. D. 1 nonrigid airship.

Flight, Vol. 21, No. 45 (Nov. 8, 1929), London, pp. 1182-1185, ill., diagr.

- A light airship—the A. D. 1.

Flight, Vol. 21, No. 39 (Sept. 27, 1929), London, p. 1058, ill. ANT-9. First Russian all-metal 'plane.

Flight, Vol. 21, No. 35 (Aug. 29, 1929), London, pp. 913-917, ill. Abbrceon, H. v. 500 Fahrten im Freiballon.

Berlin, Verlag Richard Carl Schmidt & Co., 1929, pp. 154, ill. Accidents. Accident analysis.

Scient. Amer., Vol. 140 (June, 1929), New York, pp. 544-545.

- Los accidentes de aviación y sus causas.

Ibérica, Año 16, Núm. 805 (7 die. 1929), Barcelona, pp. 344-345.

- Analysis of accidents in civil aeronautics.

Air Commerce Bulletin, Vol. 1, No. 1 (July 1, 1929), Washington, pp. 7-10, tables. Department of Commerce, Aeronautics branch.

- The Channel disaster. Air Ministry report.

Flight, Vol. 21, No. 31 (Aug. 1, 1929), London, pp. 835-837.

- The " City of Rome " disaster.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, p. 1080.

- Civil air accidents.

Domestic Air News, No. 54, June 5, 1929, Washington, pp. 17-18. Department of Commerce, Aeronautics branch.

- Civil air accidents and casualties in 1928.

Domestic Air News, Serial No. 47, Feb. 28, 1929, Washington, pp. 15-17. Department of Commerce, Aeronautics branch.

Accidents. Cross-channel disaster enquiry.

Flight, Vol. 21, No. 27 (July 4, 1929), London, p. 554.

- Disaster to the Cape flight. Both pilots killed.

Flight, Vol. 21, No. 52 (Dec. 27, 1929), London, p. 1340, ill.

- On some recent accidents.

The Aeroplane, Vol. 37, No. 20 (Nov. 13, 1929), London, pp. 1137-1144, ill.

- Plane that drops its engine to prevent crashes.

Pop. Mech., Vol. 52 (Aug. 1929), Chicago, pp. 190-191, ill.

- Statistiques des accidents d'aviation civile aux États-Unis en 192S.

L'Aéronautique, lime année, No. 121 (juin 1929), Paris, 185-186, tables.

- See Caspari, Walter: Zergliederung und statische Erfassung von Flug-

zeugunf allen.

- See McKelway, Ben: Harmful publicity? A working newspaperman

pleads for all the facts on accidents.

- See Neely, Frederick R. : Aircraft accidents.

- See O'sborn, Earl D. : Accidents and their causes.

Accounting. See Putnam, L. L. : Aviation accounting.

Acworth, Bernard. This bondage ; a study of the ' migration ' of birds, insects, and aircraft, with some reflections on 1 evolution ' and relativity. London, J. Murray, 1929, pp. xxiv, 229, diagrs.

Adams, B. D. Effective sales methods.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 65, 346, 348, 350, ill.

Adams, D. G. Spartanburg builds itself an airport.

American City, Vol. 40 (Feb. 1929), New York, p. 145, ill.

Adams, Porter. Tribute paid Porter Adams.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, p. 37.

Addison-Luard. The Addison-Luard calculator.

Aircraft Engineer suppl. Flight, Vol. 21, Nos. 39, 43 (Sept. 27, Oct. 25, 1929), London, pp. 1056f-1056g, 1140e-1140g, ill., diagr.

Adhesives. See Douglas, Wm. D., and C. B. Pettifor : The testing of adhesives for timber.

Advertising. Un mode nouveau de publicité aérienne.

L'Aéronautique, lime année, No. 120 (mai 1929), Paris, p. 165, ill.

- See Parker, Willis : Motor truck advertising versus airplane advertising.

Aeroarctio. See Berson, Arthur : Die Pläne der "Aeroarctic."

- See Bruns, Walther: Professor Berson und die "Aeroarctic."

- See Internationale Gesellschaft zur erforschung der Arktis mit Luftfahrzeugen: Verhandlungen der II. ordentl. Versammlung in Leningrad 18.-23. juni 1928 ; hrsg. im auftrage der gesellschaft von A. Berson und L. Breitfuss.

Aéro-Club de France. Le nouvel hotel de l'Aéro-Club de France.

L'Aérophile, 37e année, Nos. 23-24 (ler-15 déc. 1929), Paris, p. 359, ill.

- See Blanchet, Georges : Le rallye transat de l'Aéro-Club de France.

- See Flandin, P.-E. : Lettre ouverte à M. le Ministre de l'Air.

Aerodromes. How to establish a civil aerodrome.

Flight, Vol. 21, No. 26 (June 27, 1929), London, pp. 520-521, map.

- See Airports.

- See Jackaman, A. C. A. : Laying out an aerodrome.

Aerodynamic Chord. See Gravity: Determination of center of gravity and mean aerodynamic chord.

Aerodynamics. See Budig, Friedrich : Au sujet de l'action sur une voilure d'un vent latéral une application à la propulsion des bateaux.

- See Carafoli, Elie: Influence des ailerons sur les propriétés aérodynamiques des surfaces sustentatrices.

- See Driggs, LH.: The modern aerodynamic theory in design.

- See Fage, A. : The air flow around a circular cylinder in the region where

the boundary layer separates from the surface.

- See Fage, A. : On the two-dimensional flow past a body of symmetrical

cross-section mounted in a channel of finite breadth.

- See Fage, A. : The skin friction on a circular cylinder.

- See Faranda, Alberto : Sistema di f reno aerodinamico per velivoli.

- See Gates, S. B. : An analysis of a rectangular monoplane with hinged tips.

- See Ginocchietti, Angelo: II tiro délie unità complesse aeree. Tiro a

puntamento individuale o tiro simultaneo?

- See Glauert, H. : The accelerated motion of a cylindrical body through a

fluid.

- See Glauert, H. : The characteristics of a Karman vortex street in a

channel of finite breadth.

- See Glauert, H. : The effect of the static pressure gradient on the drag of

a body tested in a wind tunnel.

- See Glauert, H. : A theoretical estimate of the pressure gradient in a

wind tunnel.

- See Lamb, H. : The hydrodynamic forces on a cylinder moving in two

dimensions.

- See Lamb, H. : Note on the forces experienced by ellipsoidal bodies placed

unsymmetrically in a converging or diverging stream.

- See Lamb, H. : On the flow of a compressible fluid past an obstacle.

- See Lapresle, A. : Aérodynamique.—Nouveau principe d'établissements des

grandes souffleries aérodynamiques.

- See Monteith, Charles Norton : Simple aerodynamics and the airplane.

- See Münk Max Michael: Fundamentals of fluid dynamics for aircraft

designers.

- See Nagel, Felix: Flügelschwingungen im stationären Luftstrom.

- See National Advisory Committee for Aeronautics: Aerodynamic characteristics of airfoils—VI.

- See Ower, E. : Recent progress in aerodynamics.

- See Perring, W. G. A.: The theoretical relationships for an aerofoil

with a multiply hinged flap system.

- See Raimondi, E. : Un nuovo fenomeno di aerodynamica.

- See Roy, Maurice : Sur la théorie du vol des avions en régime permanent.

- See Schmidt, Harry: Aerodynamik des fluges; eine Einführung in die

mathematische Tragflâchentheorie.

Aerodynamics. See Stanton, T. E. : On the effect of air compression on drag and pressure distribution in cylinders of infinite aspect ratio.

- See Sulejkin, V. : L'aérodynamique des poissons volants.

- See Tanaka, Keikiti : Air flow through suction valve of conical seat.

- See Tanner, T. : Some laboratory methods of aerodynamic investigations.

- See Taylor, G. I.: The force acting on a body placed in a curved and

converging stream of fluid.

- See Thorn, A. : The boundary layer of the front portion of a cylinder.

- See Thorn, A. : An investigation of fluid flow in two dimensions.

- See Zahm, Albert Francis : Flow and force equations for a body revolving

in a fluid.

Aeorofoil. See Airfoils.

Aerologie. See Aimé, Emmanuel: Aerologie.

Aerology. See Eredia, Filippo: Le indagini sulla copertura delle nubi attraverso le osservazioni meteorologiche ed aerologiche.

Aeromechanics. See Katzmayr, R. : Aeromechanical experimentation (Wind tunnel tests).

- See Tietjens, O. : Hydro- und Aeromechanik nach Vorlesungen von L.

Prandtl. Band I : Gleichgewicht und reibungslose Bewegung.

t

Aeronautical Chamber of Commerce. Aircraft yearbook 1929. New York, Aeronautical Chamber of Commerce.

- Licensed aircraft.

Washington, D. C, The Aeronautical Chamber of Commerce, Washington Bureau, 1929.

- See Freeman, Harry Joseph: Municipal airports as a "public purpose."

Article prepared for the use of the Aeronautical Chamber of Commerce of America.

Aeronautical Research Committee. Aeronautical Research Committee. Report for the year 1928-29.

London, H. M. Stationery Office, 1929.

- Reports and memoranda of the Aeronautical Research Committee published between 1st August, 1928, and 31st August, 1929.

Aer. Res. Comm., Rep. Mem., No. 1250, November, 1929, London, 1930, pp. 7.

Aeronautical Research Institute. Reports of the Aeronautical Research Institute Tokyo Imperial University, Vol. IV. (Nos. 42-53) (1929). Tôkyô, Kokusai Shuppan Insatsusha, 1929.

Aeronautics. See National Advisory Committee for Aeronautics : Aeronautics. Fifteenth annual report of the National Advisory Committee for Aeronautics 1929. Administrative report without technical reports.

Aérotechnique. Une machine a calculer le point.

L'Aérophile, 37e année, Nos. 5-6 (ler-15 mars 1929), Paris, pp. 79-80, ill.

Africa. See Italy : Cronistoria délia aeronautica militaire Italiana.

- See Surveying: Exploring darkest Africa's jungles from the air.

Agriculture. Plant protection by airplane.

Literary Digest, Vol. 101 (Apr. 27, 1929), New York, pp. 60-61, ill.

Ahlborn, Fe. Der Magmiseffekt in Theorie und Wirklichkeit.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 24. Heft (28. Dez. 1929), München, pp. 642-653, ills.

- Strömungsbilder und ihre Erklärung.

Natur und Museum, Band 59, Heft 9 (Sept. 1929), Frankfurt am Main, pp. 440-453, ills.

Inhalt : Entstehung der Wirbel an Hindernissen. Die turbulente Struktur des Windes und des strömenden Wassers. Windwirkung am Boden und Windschutz. Strömung durch Gitter. Strömung über einen Bergrücken und Bedeutung für den Flug.

Ailbeons. See Bradfield, F. B., and K. W. Clark: Wind tunnel experiments on the design of an automatic slot for R. A. F. 28 section, and on interconnection with ailerons.

- See Carafoli, Elie: Influence des ailerons sur les propriétés aérodynamiques des surfaces sustentatrices.

- See Hartshorn, A. S. : The application of the servo principle to aileron

operation.

- See Hartshorn, A. S. : Theoretical relationship for a wing with unbalanced

ailerons.

- See Heald, R. H., and D. H. Strother: Effect of variation of chord and

span of ailerons on rolling and yawing moments in level flight.

- See Knight, Montgomery, and Millard J. Bamber : Wind tunnel tests on

a model of a monoplane wing with floating ailerons.

- See Betz, A., and E. Petersohn : Contribution to the aileron theory.

- See Sutton, H. A. : Notes on the design of ailerons.

- See Toussaint, A., and E. Carafoli : Aerodynamic characteristics of thin

empirical profiles and their application to the tail surfaces and ailerons of airplanes.

- See Wieselsberger, C. : Theoretical investigation of the effect of the

ailerons on the wing of an airplane.

- See Wright, K. V. : Full scale experiments with a Bristol fighter fitted

with slots and flaps and slot and aileron control.

Aimé, Emmanuel. Aerologie. VI-XVI.

L'Aérophile, 37e année, Nos. 1-24 (ler-15 jan.-ler-15 dec. 1929), Paris, pp. 9-10, 39-40, 72-73, 109, 138, 202-204, 240-241, 273-274, 299-300, 307, 328, 357-358.

- L'atmosphère. Source gratuite d'énergie inépuisable dans les régions

chaudes et tempérées,

L'Aérophile, 37e année, Nos. 3-4 (ler-15 fév. 1929), Paris, p. 40, ill.

- L' " Oiseau-Canari " a franchi l'Atlantique.

L'Aérophile, 37e année, Nos. 11-12 (ler-15 juin 1929), Paris, p. 162.

- La vitesse instantanée du vol déterminée d'après la son perçu a terre.

L'Aérophile, 37e année, Nos. 19-20 (ler-15 oct. 1929), Paris, pp. 296-298, ill.

Aie. See Dubois, Bernard J. : Vitesses des chutes ascendantes de l'air dans les canalisations verticales athermanes.

Aie Commeece. See Commerce regulations: Air commerce regulations. Effective December 31, 1926.

Air Commerce Act. Flying school rating provided for in amendment to air commerce act.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, p. 8.

- See Bingham, Hiram : Amendment to Air Commerce Act introduced by

Senator Hiram Bingham passes Congress.

Air-cooled Engines. See Fedden, A. H. R. : Air-cooled engines in service.

Air Corps, United States Army. The allowable stress in tubes subjected to torsion. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 641 (Oct. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 5, diagrs. Air Corps Technical Report No. 3070.

- Application of the least work method to the evaluation of initial and

temperature stresses. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 634 (Sept. 15, 1929), Washington, United States Government Printing Office, 1929, pp. 7, ills. Air Corps Technical Report No. 2998.

- Determination of center of gravity and mean aerodynamic chord.

Air Corps Information Circular, Vol. 7, No. 605 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 13, ills., diagrs. Air Corps Technical Report No. 2790.

- Determination of the rates of descent of a falling man and of a parachute

test weight. (Equipment branch report.)

Air Corps Information Circular, Vol. 7, No. 628 (Nov. 24, 1928), Washington, United States Government Printing Office, 1929, pp. 7, diagrs. Air Corps Technical Report No. 2916.

- Determination of stability from flight test stick force data. (Airplane

branch report.)

Air Corps Information Circular, Vol. 7, No. 625 (Aug. 1, 1929), Washington, United States Government Printing Office. 1929, pp. 12, ills., diagrs., tabls. Air Corps Technical Report No. 2864.

- Precise formulas for restrained beam with axial load of compression, and

with one restraining moment known. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 624 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 3, ills. Air Corps Technical Report No. 2899.

- Relationship of laboratory tests and cold weather motor operation of

various oils—Part II. (Material branch report.)

Air Corps Information Circular, Vol. 7, No. 640 (Oct. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 10, ill., diagrs. Air Corps Technical Report No. 640.

- Résumé of investigations made on Handley Page slots and flaps. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 639 (Oct. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 13, ills. Air Corps Technical Report No. 3020.

- Revised nomographic column charts with isobars of weight and tensile

strength. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 631 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 9, diagrs., table. Air Corps Technical Report No. 2922.

-■ Rigidity and flexibility of airplane structures. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 642 (Oct. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 3. Air Corps Technical Report No. 3074.

Aib Corps, United States Army. Some aspects of torsion in multispar cantilever wings. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 627 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 8, ills. Air Corps Technical Report No. 2913.

- Static test report of type E-l airplane ski. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 636 (Sept. 15, 1929), Washington, United States Government Printing Office, 1929, pp. 6, ills. Air Corps Technical Report No. 3005.

- Study of wing flutter. Part I—Test of apparatus and discussion of procedure. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 635 (Sept. 15, 1929), Washington, United States Government Printing Office, 1929, pp. 16, ills., diagrs. Air Corps Technical Report No. 3002.

- Supplementary report on tests of 6%-inch metal spars. (Airplane branch

report.)

Air Corps Information Circular, Vol. 7, No. 637 (Sept. 15, 1929), Washington, United States Government Printing Office, 1929, pp. 2, ills. Air Corps Technical Report No. 2990.

- Test of standard water-cooled Liberty-12 engine with various piston rings

and arrangements. (Power plant branch report.)

Air Corps Information Circular, Vol. 7, No. 638 (Oct. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 5, ills., tabls. Air Corps Technical Report No. 3006.*

- See United States Adjutant General's Office: Flying cadets of the air

corps. Aviation as a career.

Air currents. See Bamford, A. j.: Vertical air currents as measured by pilot balloons.

- See Eredia, Filippo: La velocita e la direzione delle correnti aeree al

mattino e al pomeriggio.

Air flow. See Tanaka, Keikiti: Air flow through suction valve of conical seat.

Air marking. Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 4, United States Government Printing Office, 1929, pp. 13, ill.

Air parks. See Airports.

Air-rail service. See Hanson, Earl: Canadian Pacific express experiments with air-rail service.

Air sickness. See Sickness: The problem of air sickness.

Air traffic rules. See Traffic rules; Air traffic rules.

Air transport. See Burney, Charles Dennistoun: The world, the air, and the future.

- See Klemin, Alexander: American passenger air transport.

- See 1928: Air transport operation for the calendar year 1928.

- See 1928: Air transport operations, 1928.

- See Transport routes; United States air transport routes.

Air travel. More airplanes to-day and automobiles in 1900.

American City, Vol. 41 (Oct., 1929), New York, p. 116.

Aircraft. The age of large aircraft.

Flight, Vol. 21, No. 47 (Nov. 22, 1929), London, p. 1232.

Aircraft. Airship or flying boat.

Plight, Vol. 21, No. 43 (Oct. 25, 1929), London, pp. 1127-1128.

- World in the air.

Pop. Mech., Vol. 52 (July, 1929), Chicago, pp. 34-46, ill.

- See 1928: Aircraft and engine manufactures show great increase during

1928.

Aircraft Engineering Research Conference. See National Advisory Committee for Aeronautics: Report of proceedings of Fourth Annual Aircraft Engineering Research Conference. Under auspices of the National Advisory Committee for Aeronautics, Langley Field, Va. May 14, 1929.

Aircraft yearbook. See Aeronautical Chamber of Commerce; Aircraft yearbook, 1929.

Airfoils. See Bamber, Millard J.: Wind tunnel tests on an airfoil equipped with a split flap and a slot.

- See Bradfield, F. R., and K. W. Clark: Wind tunnel tests of aerofoils with

pilot planes.

- See Briggs, Lyman James, and H. L. Dryden: Aerodynamic characteristics of twenty-four airfoils at high speeds.

- See Bryant, L. W., E. Ower, A. S. Halliday, and V. M. Falkner: On the

convection of heat from the surface of an aerofoil in a wind current.

- See Diehl, Walter S.: Joint report on standardization tests on N. P. L.

R. A. F. 15 airfoil model.

- See Fewster, T. H.: A dash-pot for use in spinning experiments on a model

aerofoil.

- See Gates, S. B.: An analysis of a rectangular monoplane with hinged

tips.

—— See Glauert, H.: The force and moment on an oscillating aerofoil.

- See Glauert, H.: Die Grundlagen der Tragflügel- und Luftschraubentheorie.

- See Glauert, H.: The lift and pitching moment of an aerofoil due to a

uniform angular velocity of pitch.

- See Harris, R. G., and R. A. Fairthorne: Wind tunnel experiments with

infinite cascades of aerofoils.

- See, Heald, R. H., and D. H. Strother: Effect of variation of chord and

span of ailerons on rolling and yawing moments in level flight.

-- See Higgins, George J.: The prediction of airfoil characteristics.

- See Irving, H. B., and A. S. Batson: Rolling experiments on an aerofoil of

R. A. F. 32 section.

- See Jacobs, Eastman N.: Pressure distribution on a slotted R. A. F. 31

airfoil in the variable density wind tunnel.

- See Katzmayr, Richard: Travel of the center of pressure of airfoils transversely to the air stream.

- See Knight, Montgomery, and Millard J. Bamber: Wind-tunnel tests on

airfoil boundary layer control using a backward opening slot.

Airfoils. See National Advisory Committee for Aeronautics: Aerodynamic characteristics of airfoils—VI.

- See Ober, Shatswell: Estimation of the characteristics of modified airfoils.

- See Ober, Shatswell: Some experiments on autorotation of an airfoil.

- See Perring, W. G. A.: The theoretical relationships for an aerofoil with

a multiply hinged flap system.

- See Perring, W. G. A.: Wind tunnel tests on a symmetrical aerofoil

(Gottingen 429 section).

- See Piercy, N. A. V., and E. G. Richardson: On the flow of air adjacent to

the surface of aerofoil.

- See Weick, Fred E.: Tests of four racing type airfoils in the twenty-foot

propeller research tunnel.

- See Wensinger, Carl J., and Oscar Loeser, jr.: Wind tunnel pressure distribution tests on an airfoil with trailing edge flap.

- See Wings.

Air-Navigatton. Stock taking of air-navigation aids.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, pp. 6-7. Department of Commerce, Aeronautics branch.

Airplane Structures. See Structures: Rigidity and flexibility of airplane structures. (Airplane branch report.)

Airplanes. Blue sky; invasion of the airplane.

Atlantic Monthly, Vol. 144 (Oct. 1929), Boston, pp. 570-571.

- Can you name them?

World's Work, Vol. 58 (July, 1929), Garden City, N. Y., p. 59, ill.

Airports. Aids to better lighting of airports.

American City, Vol. 41 (Aug. 1929), New York, p. 127, ill.

- The air conference on the necessity of municipal airports.

Flight, Vol. 21, No. 45 (Nov. 8, 1929), London, pp. 1191-1192.

- Airport grading and leveling.

Flight, Vol. 21, No. 44 (Nov. 1, 1929), London, p. 1165, ill.

- Airport lighting.

Pittsburgh, Westinghouse Electric & Mfg. Company, Bulletin S. P. 1854, PP. 12.

- Airport management, July 1, 1929.

Aeronautics Bulletin No. 17, Department of Commerce, Aeronautics branch, United States Government Printing Office, 1929, pp. 19.

- Airport rating regulations. Effective as amended January 1, 1929.

Aeronautics Bulletin, Department of Commerce, Aeronautics branch, United States Government Printing Office, 1929, pp. 23.

- Airports and landing fields.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 5 (formerly information Bulletin No. 5), Washington, June. 30, 1929, pp. 12.

Air Commerce Bulletin, Vol. 1, No. 11 (Dec. 2, 1929), Washington, pp. 19-27. Department of Commerce, Aeronautics branch.

- Airports and landing fields, (Continued from issue of December 2, 1929.)

Air Commerce Bulletin, Vol. 1, No. 12 (Dec. 10, 1929), Washington, pp. 1S-20. Department of Commerce, Aeronautics branch.

9573—30-2

Aiepokts. Airports and landing fields. Revised September 30, 1929.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 5, United States Government Printing Office, 1929, pp. 16.

- Airports, crossroads of commerce.

Air Commerce Bulletin, Vol. 1, No. 7 (Oct. 1, 1929), Washington, pp. 1-4. Department of Commerce, Aeronautics branch.

- Beginning of an era; Grand Central air terminal.

Outlook, Vol. 151 (Mar. 13, 1929), New York, pp. 421-422.

- Chains reach into the air.

Business Week (Sept. 7, 1929), New York, p. 9.

--Constructing a dustless airport.

Aviation, Vol. 26, No. 19 (May 11, 1929), New York, pp. 1600-1602, ill.

- Designing safe and adequate airports.

Department of Commerce, Aeronautics branch, Washington, pp. 10, ills.

Reprint of paper presented before the First National Aeronautical Safety Conference held in New York City October 1 to 5, 1928, under the joint auspices of the Daniel Guggenheim Fund for the Promotion of Aeronautics and the National Safety Council.

- The drainage of air-parks.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1068, 1070, ill.

- Leeds and Bradford municipal aerodrome.

Flight, Vol. 21, No. 42 (Oct. 18, 1929), London, pp. 1116, 1126.

- Notes on airport lighting.

Department of Commerce, Aeronautics branch, April 15, 1929, pp. 14, ills.

- On air-parks.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1017-1024, ill.

- Proposed airports. (LS) Land and sea.

Air Commerce Bulletin, Vol. 1, No. 10 (Nov. 15, 1929), pp. 22-25. Department of Commerce, Aeronautics branch.

- Relation of airports and airways to municipal and regional planning.

American City, Vol. 40 (May 1929), New York, p. 130.

'- Suggested city or county aeronautics ordinance and uniform field rules for

airports.

Air Commerce Bulletin, Vol. 1, No. 7 (Oct. 1, 1929), Washington, pp. 4-10. Department of Commerce, Aeronautics branch.

- Suggested traffic code for airports.

Air Commerce Bulletin, Vol. 1, No. 6 (Sept. 15, 1929), Washington, pp. 4-6. Department of Commerce, Aeronautics branch.

- Surfacing the airport.

Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, pp. 302-304, ill., diagr.

- Ten thousand dollars in prizes for airport designs.

American City, Vol. 40 (Apr. 1929), New York, p. 132.

- U. S. airports of entry.

Domestic Air News,.No. 52, May 15, 1929, Washington, pp. 10-11. Department of Commerce, Aeronautics branch.

- Who shall own and operate the airports?

American City, Vol. 39 (Dec. 1928), New York, p. 110.

- See Adams, D. G.: Spartanburg builds itself an airport.

- See Arthur, W. E.: How shall we design our airports?

- See Black, Archibald: Civil airports and airways.

Airports. See Blackburn, E. C, jr.: Heating and ventilating for airport buildings.

- See Blee, Harry Harmon: El proyecto de puertos aéreos adecuados y

seguros.

—— See Bonf orte, John : Airport engineering.

- See Boone, Andrew R. : Location and ownership of airports.

- See Brummitt, W. B. : A-B-G of airports,

- See Callison, A. F. : Subways and elevators for modern airports.

-&- See Casamor, Luis Santomá : Aeropuertos.

- See Cobham, Alan : Address on " Selection of airport sites."

- See Corbett, Harvey Wiley : Underground hangar arrangements for future

airports.

- See Cotton, Harry E. : The strength of drain pipes for airports.

- See Crosby, G. E. : Airport development in the United States.

- See Davison, R. L. : Airport design and construction.

- See Dierbach, E. : Grundsaetzliches ueber Flughafenbau.

- See Durá$ Heriberto : Los aeropuertos en los Estados Unidos de

Norteamérica.

- See Engelhardt, N. L. : Economical expansion of an airport.

- See Ford, G. B. : Airport and the city plan.

- See Freeman, Harry Joseph: Municipal airports as a "public purpose."

Article prepared for the use of the Aeronautical Chamber of Commerce of America.

- See Gale, Charles H. : The first national airport conference.

- See Gale, Charles H. : The road builders consider municipal airports.

- See Gsell: Les aménagements techniques des aéroports.

- See Hanks, Stedman Shumway: International airports.

- See Hay, C. C. : The class A airport.

- See Hegardt, G. B. : Oakland municipal airport.

- See Holcombe, T. G. : Boston develops its municipal airport under

jurisdiction of the park commissioner.

- See Italy: Norme per i direttori civili di aeroporto (Ministero dell'

aeronáutica ; aviazione civile e traffico aereo).

- See Jackaman, A. C. A. : Laying out an aerodrome.

- See Klemin, Alexander : Learning to use our wings'. * * * Airport

sign and signal.

- See Küster, W. Gordon : The civic organization's part in local airport

programs.

- See Lehigh Portland Cement Company: Lehigh airports competition.

- See Lehigh Portland Cement Company : The modern airport and Lehigh

competition.

- See Lippman, H. E. : Airport lighting circuits.

Airports. See Lippman, H. E.: Lighting a typical airport.

- See Love, Philip R.: Fundamentals and certain details of airport design

and construction.

- See Mahan, H. E.: Lighting of airways and airports.

- See Martin, George E.: Economic airport trame facilities.

- See Martin, Glenn L.: Martin acquires large site. Will build factory and

airport at Baltimore.

- See Mealing, R. H. S.: Address on the layout and equipment of airports.

- See Newell, II. E.: Fire protection for municipal airports.

- See Norman, Nigel: Air-park planning and construction,

- See Ogden, H. R.: Flying field and airway lighting.

- See Pirath, C.: Flughaefen in Ausgestaltung und Betrieb.

- See Porter, L. C.: Aviation lighting.

- See Richard, L. F.: Administration of airports.

- See Saal, R.: The design of airports.

- See Seadromes.

- See Seattle: Novel design for new airport.

- See Seville-Buenos Aires: Seville-Buenos Aires airline terminal.

- See Slater, B. A.: Engineering of airports.

- See Smalley, B. C.: Seadrome ports of call attaining recognition.

- See Smythe, Allen M.: A municipal airport for Washington.

- See Steele, Dudley M.: Gasoline servicing at airports.

- See Terminals.

- See United States Congress. Joint Commission on Airports: Airports,

national capital * * * Report.

--See United States Congress. Joint Commission on Airports: District

of Columbia airport facilities. Preliminary report of the Joint Commission on Airports pursuant to Public Resolution No. 106, Seventieth Congress, a joint resolution to establish a Joint Commission on Airports.

- See United States Department of Commerce, Aeronautics Branch:

Airport management. July 1, 1929.

-■ See United States Department of Commerce, Aeronautics branch: Suggested city or county aeronautics ordinance and uniform field rules for airports. October 1, 1929.

- See Virginia: Virginia realizing plan for system of airports.

- See Weyerbacher, R. D.: Airports.

- See Wietz, C. E.: Looking ahead in airport lighting development.

- See Wireless: Wireless for airports.

- See Wood, Francis: Airports.

- See Young, C. M.: Three outstanding European airports.

Airscrews. See Propellers.

Airships. Airship development.

The Aeroplane, Vol. 36, No. 11 (Mar. 13, 1929), London, p. 406.

- The airship's place in to-morrow's commerce.

Air Commerce Bulletin, Vol. 1, No. 10 (Nov. 15, 1929), Washington, pp. 4-5. Department of Commerce, Aeronautics branch.

- The all-metal airship.

Domestic Air News, Serial No. 50, April 15, 1929, Washington, pp. 7-9. Department of Commerce, Aeronautics branch.

- Detroit's all-metal dirigible.

Literary Digest, Vol. 102 (Sept. 7, 1929), New York, p. 10, ill.

- Dirigible comes back.

Review of Reviews, Vol. 80 (Oct. 1929), pp. 136-138, ill.

- L'état actuel de la question des dirigeables aux États-Unis.

Le Genie Civil, T. 93, No. 3 (21 Juli 1928), Paris, pp. 73-74.

-r- New British airship.

Science, n. s., Vol. 70 (Oct. 18, 1929), Garrison, N. Y., sup. 12.

- Le nouveau dirigeable métallique américain Slate.

L'Aérophile, 37e année, Nos. 3-4 (ler-15 fév. 1929), Paris, p. 42, ill.

- On airships.

The Aeroplane, Vol. 37, No. 17 (Oct. 23, 1929), London, pp. 973-984, ill.

- Report of the airworthiness of semi-rigid airships sub-committee.

Aer. Bes. Comm., Rep. Mem., No. 1170 (Ae. 334), November 1928, London, 1929, pp. 16, ills., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 919-934, ills., tabls.

- Silver ship.

Commonweal, Vol. 10 (Aug. 21, 1929), New York, pp. 391-392.

--Successful metal-clad airship.

Scient. Amer., Vol. 141 (Nov. 1929), New York, pp. 436-437, ill

- See Akron : Helium at Akron.

- See Allen, H. : Crossing* the ocean by Zeppelin.

- See Arctic: Airships and Arctic meteorology.

- See Bassi, Silvio : II tenia di dirigibili.

- See Blakemore, T. L., J. F. Boyle, and N. Meadowcroft : Design, construction, and handling of non-rigid airships.

- See Bleistein, W. : Luftschiffe am Mast.

- See Blimps: Nonrigid ship developments. Four blimps now operating;

airship school formed.

- See Bonifacio, Ferdinando : II vclivolo moderno con cenno sui dirigibili.

- See Burgess, C. P.: Flight tests on.U. S. S. " Los Angeles." Part II—

Stress and strength determination.

- See Burton, Walter E. : The new Zeppelin plant at Akron airport.

- See Burton, Walter E. : Zeppelin's American home ; two world's largest

Zeppelins for our navy will be built in hangar at Akron, O.

- See Cave-Browne-Cave, T. R. : Tbe machinery installation of airship

R. 101.

- See Cox, Harold Roxbee : The external forces on an airship structure

with special reference to the requirements of rigid airship design,

Airships. See De France, Smith j. : Flight tests on U. S. S. " Los Angeles." Part I—Full scale pressure, distribution investigation.

- See De France, Smith j., and C. P. Burgess : Speed and deceleration trials

of U. S. S. Los Angeles.

- See Eckener, Hugo : Die Amerikafahrt des " Graf Zeppelin " * * *

herausgegeben von Rolf Brandt.

- See Evans, Edward S. : The all-metal dirigible ZMC-2.

- See Fritsche, Carl B. : The metal-clad airship.

- See Fuel : Fuel gas for airships.

- See Gannett, W. H. : Blimps.

- See Goldbeaters skins : Goldbeaters skins for airships.

- See Grosvenor, Edward Arthur, and Leonard Bridgman : International

aircraft markings ; naval-military, and civil.

- See Gruillot, G. : Le " Graf-Zeppelin " à Cuers-Pierrefeu.

- See Hardecker, John F. : British airship development.

- See Hill, F. T., and T. Tanner : The resistance of the international airship

models measured in the windtunnel of the Royal College of Science, South Kensington, S. W. 7.

- See Jones, R., and A. H. Bell : The distribution of pressure over the hull

and fins of a model of the rigid airship R. 101, and a determination of the hinge moments on the control surfaces.

- See Jones, R., and A. H. Bell: Experiments on a model of the airship

R. 101.

- See Klemin, Alexander : Learning to use our wings. * * * A successful metal-clad airship.

- See Krell, O. : Contribution to the technique of landing large airships.

- See Lehmann, E. A. : Das Luftschiff Graf Zeppelin vom Standpunkt des

Erbauers aus betrachtet.

- See Llave y Sierra, Joaquin de La. : La vuelta al mundo por el dirigible

" Graf Zeppelin."

- See Martinot-Lagarde, C. : L'état actual et l'aveuir du dirigeable.

- See Mercier, L. : Les grands dirigeables britanniques.

-■ See Milarch : Umrissfunktionen für Luftschiffkörper, welche den Faktor

(l-x)e enthalten.

- See Milarch: Zwei tangential zusammengesetzte Teilumrisse für einen

Luftschiffkörper.

- See Moffett, William A. : All honor to the Germans ! They lead the world

in lighter-than-air ; is America boasting instead of doing?

- See Mooring: Le mechanisme de la tour d'amarrage pour dirigeables de

Montreal (Canada).

- See Mooring : Mobile mooring for airships.

- See Mooring : The mooring of airships.

Aikships. See Neely, Frederick R.: The ring of the ZRS-4. Thousands witness impressive and historical ceremony at Akron on November 7.

- See Richmond, V. 0.: " R-101."

- See Rosendahl, C. E.: Bigger and better blimps.

- See Rosendahl, C. B.: Inside the " Graf Zeppelin." The United States

official observer in the monster dirigible's flight to America, tells the details of its construction.

- See Rosendahl, 0. E.: Mooring masts and landing trucks for airships.

- See Scott, G. H.: Handling and mooring of airships.

- See Shoemaker, James M.: Reliable power plants for the airship.

- See Simmons, L. F. G.: Tests on airship models at large Reynolds

numbers.

- See Slate: The Slate all-metal airship.

- See Sothwell, R. V.: " R-101."

- See Spanner, Edward Frank: About airships,

- See Zeppelins: La causa de las averias de los motores del " Graf Zeppelin."

Airsickness. See Nikolaus, Joseph : See-sport-park, seesportanlage-landanlage; die Zentralstätte für see- und luftsport, insbesondere zur anwendung des Nikolausverfahrens gegen die verkehrskrankheiten, wie see- und luftkrankheit, dreh- und höhenschwindel.

Airways. Airway construction equipment progress.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, pp. 15-16. Department of Commerce, Aeronautics branch.

- Airway marking committee report.

Domestic Air News, Serial No. 46, Feb. 15, 1929, Washington, pp. 13-14. Department of Commerce, Aeronautics branch.

- Airway progress.

Air Commerce Bulletin, Vol. 1, No. 11 (Dec. 2, 1929), Washington, pp. 12-14. Department of Commerce, Aeronautics branch.

- Airway survey and construction progress.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, pp. 8-9. Department of Commerce, Aeronautics branch.

- America's airways.

Air Commerce Bulletin, Vol. 1, No. 8 (Oct. 15, 1929), Washington, pp. 1-14, maps. Department of Commerce, Aeronautics branch.

- Chronicle of U. S. airways.

Domestic Air News, No. 53, May 30, 1929, Washington, pp. 7-8. Department of Commerce, Aeronautics branch.

Domestic Air News, No. 54, June 15, 1929, Washington, pp. 9-10. Department of Commerce, Aeronautics branch.

- Scheduled flying on civil airways.

Air Commerce Bulletin, Vol. 1, No. 11 (Dec. 2, 1929), Washington, p. 4. Department of Commerce, Aeronautics branch.

- See Beacons: Radio range beacons for airways.

Airways. See Black, Archibald : Civil airports and airways, with the collaboration of a group of 19 specialists in the different angles of airport construction and equipment.

- See Bowie, Edward Hall : Weather and the airplane ; a study of the model

weather reporting service over the California airway.

- See Hammond, C. S., & Co. : Air-line atlas of the world.

- See Hampton, E. L. : Creating the airways of America.

- See Lighting: Street lighting form airway marker.

- See Mahan, H. E. : Lighting of airways and airports.

- See Maps : Air mail routes. Air passenger routes. Lighted airways.

- See New York (State) : Report of the special joint legislative committee

on aviation to the Senate and Assembly of the State of New York. Transmitted January 30, 1929.

- See Radio : Radio and the Nation's airways.

- See Routes : Operating air transport routes in the United States.

- See Routes : United States air transport routes.

- See Surveying : Aerial surveys for the revision of Coast and Geodetic

Survey charts.

- See Transport routes : United States air transport routes.

- See United States Airway Marking Committee : Report of airway marking

committee. January 23, 1929.

Ajmonb-Cat, Mario. L'aviazione come strumento d'offesa.

Riv. Aeron., Anno 5, N. 11 (Nov. 1929), Roma, pp. 295-309.

- Impiego ordinamento, mobilitazione, addestramento e . . . finalmente

funzionamento dell'aviazione ausiliaria per il R. Esercito.

Riv. Aeron., Anno 5, N. 7 (Luglio 1929), Roma, pp. 91-145.

- Per non smarrire la diritta via.

Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 244-258.

Akagi. See Parkes, Oscar : Japan's new navy. [Aircraft carriers "Akagi " and " Kaga."]

Akron. Akron municipal airport.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 110, 112, ill., map.

- Helium at Akron.

Ind. Eng. Chem., Vol. 21, No. 12 (Dec. 1929), Washington, D. C, p. 1157.

- Ring-laying ceremony at Akron.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1932-1936, ill.

- See Burton, Walter E. : The Goodyear-Zeppelin dock at Akron, Ohio.

- See Burton, Walter E. : The new Zeppelin plant at Akron airport.

- See Hangars : World's largest hangar ; Akron, O.

- See Swineford, F. E. : Akron builds a combination airport.

Alabama. See Hardesty, Corrine : Relief work by airplane in the Alabama flood.

- See Kuster, W. Gordon : Alabama air tour,

Alaska. Snowing tlie location of Alaskan airports.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, p. 448, map.

- See Burkett, E. F.: Mapping 13,000 square miles of Alaska.

- See Grinstead, Frances: Air mapping in Alaska with Loening amphibians.

- See Neely, Frederick R.: To Siberia and return. Alaskan airmen blaze

a commercial air trail across the Arctic wastes.

- See Radford, A. W.: Three months at eleven thousand feet above Alaska.

A human-interest story of the second Naval Alaskan Aerial Survey Expedition, and also about things leading up to and after the remarkable accomplishment.

Albatros. See Hübner, W.f und W. Pleines: Kinematographische Messung der Trudelbewegung an einem Flugzeug vom Muster Albatros L 68.

Albenga, Giuseppe. Calcoli di resistanza degli aeroplani.

Annali dei Lavori pubblici, Anno 66, N. 4, 9 (Aprile, Sett. 1928-VI0), Anno 67, Fase. 1 (Gen. 1929-A.VII), Roma, pp. 309-341, 793-821; 38-65, ill.

Reviewed in: Le Genie Civil, T. 93, No. 21 (24 Nov. 1928), Paris, p. 513."

Albessard. See Serryer, J.: Albessard " Triavion" airplane (French). A two-seat tandem monoplane.

Alclad. See Mattthaes, Kurt: Prüfung der Festigkeitseigenshaften von Alclad-blechen.

--See Rackwitz, Erich, und Erich K. O. Schmidt: Prüfung der Korrosionsbeständigkeit von Alcladblechen.

Aldrin, Edwin Eugene. See Monteith, Charles Norton: Simple aerodynamics and the airplane . . . with supplementary chapters on materials and construction, equipment, navigation, and the military airplane, by Captain E. E. Aldrin and technical specialists of the air corps, U. S. Army.

Alexander. The Alexander Eaglerock Bullet.

The Aeroplane, Vol. 36, No. 20 (May 15, 1929), London, p. 802, diagr.

- The Alexander .32 " Bullet."

Aviation, Vol. 26, No. 23 (June 8, 1929), New York, pp. 1989-1991, ill.

Alexander,, J. Don. Developing a new model airplane.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 65, 27S, 280, ill.

- High speed as a safety factor in the airplane.

Aviation, Vol. 27, No. 23 (Dec. 7, 1929), New York, pp. 1117-1118.

- How do we sell three planes every day?

Aviation, Vol. 26, No. 7 (Feb. 16, 1929), New York, p. 471.

- How we sell Eaglerocks.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 182-183, ill.

Alexander, Peter P. Atomic hydrogen welding and its use.

Airway Age, Vol. 10, No. 5 (May 1929), New York, p. 659.

- Atomic hydrogen welding process.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, p. 170.

Alexandrow, W. Die Joukowskysche Wirbeltheorie des Propellers und ihre Verwendung zur Berechnung von Luftschrauben.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 24. Heft (28. Dez. 1929), München, pp. 633-642, ills., diagrs.

Alfaro, H. Increasing airplane speed-range.

Journ. Soc. Automotive Engineers, Vol. 24, No. 1 (Jan. 1929), New York, pp. 99-100.

- Possible improvement of present-day aircraft.

Journ. Soe. Automotive Engineers, Vol. 25, No. 3 (Sept. 1929), New York, pp. 207-216, 224, ill.

Ali, A. H. Y. French private flying.

The Aeroplane, Vol. 37, No. 24 (Dec. 11, 1929), London, p. 1343.

Allegheny Mountains. See Walker, Donald F.: Allegheny Mountains soaring exploration expedition.

Allen, C. B. The embattled air reserves.

NAero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 81, 294, 296.

- Sky slang.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 46, 226.

Allen, Charles B. Draft act concerning aeronautics, airman and air traffic rules for state of Washington.

Aeronautic Review, Vol. 7, No. 3 (Mar. 1929), Washington, p. 8.

- A place for Kiwis, Supply the payload and you will do your bit even

though you are not Lindberg No. 2.

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 54-55, port.

Allen, H. Crossing the ocean by Zeppelin.

Living Age, Vol. 336 (June 1929), New York, pp. 292-294, ill.

Allen, J. Stanley. See Sever, W. F., and J. Stanley Allen: Iodine numbers of lubricating oils before and after use in automobile engines.

Alloys. The use of light alloys in the manufacture of aircraft.

Aviation, Vol. 27, No. 15 (Oct. 12, 1929), New York, pp. 740-743, ill.

- See Brenner, Paul: Lautal as a material for airplane construction.

--See Dix, E. H., jr.: Service characteristics of light alloys.

-- See Gayler, Marie L. V., and G. D. Preston: The age hardening of some

aluminium alloys.

- See Grogan, J. D., and T. H. Schofield: Report on some properties of

alloys of aluminium with thorium and silicon.

- See Harvey, W. G.: Magnesium and its alloys in aircraft.

- See Melchior, Paul: Aluminium, die Leichtmetalle und ihre Legierungen.

- See Phillips, C. B.: Heat treatment of alley steels in airplane work.

- See Phillips, C. B.: Metallurgy discloses value of alloys in airplane

manufacture.

- See Richardson, Edward Adams: Steel for aircraft construction.

- See Rosenhain, W., and S. L. Archbutt: Investigation into the use of a

sand cast test bar for specification purposes for aluminium alloys.

- See Schroeder, August: Buckling tests of light-metal tubes.

- See Sutton, Harry: The use of light alloys in aircraft from the point of

view of corrosion.

- See Warner, Edward P.: Light alloys in aircraft.

Allward, G. A. See Bolas, H., and G. A. Allward: Loads on the main planes and tail of an aeroplane when recovering from a dive.

Altimeters. See Brombacher, W. G., and F. Cordero : Pressure element of constant logarithmic stiffness for temperature compensated altimeter.

- See Clahoun, Guy K. : Altimeters and the Paulin system level flight

indicator.

- See McReynolds, Charles F. : Adaptation of the Paulin system to altimeters.

- See Paulin: Paulin system altimeter.

Altitude. Frozen to the sky.

Literary Digest, Vol. 100 (Jan. 12, 1929), New York, p. 20, ill.

- Future of air travel.

Pop. Mech., Vol. 52 (Nov. 1929), Chicago, pp. 754-759, ill., diagr.

- Pour la détermination photographique des altitudes.

L'Aéronautique, lime année, No. 118 (mars 1929), Paris, p. 78, ill.

- Précisions nouvelles sur le record d'altitude.

L'Aéronautique, lime année, No. 122 (juil. 1929), Paris, pp. 245-246, ill.

- See Esnault-Pelterie, R. : Une nouvelle formule pour la détermination

de la densité atmosphérique en function de l'altitude.

- See Gilbert, Ernst: Atmungsphysiologische Betrachtungen bei grossen

Höhen.

- See Henrickson, H. B. : Altitude flights.

- See Korvin-Kroukovsky, B. V. : The high altitude airplane.

- See Koschel, E. : Uber den Höhenrekordflug Neuenhofens.

- See Linke, F. : Maximalhöhe eines Ballons.

- See Radio : Determination of altitude by radio.

- See Schrenk, Martin: Probleme des Hohenflugs.

- See Simeon, Giuseppe : Apparato meccanico per il calcolo dell'altezza e

dell'azimut.

- See Somma, Alberto : Alcune formule per il calcolo dell'altezza e dell'angolo azimutale di un astro.

- See Soucek, Apollo : High boat. A tale of the realm above the earth in

which no other American has trod.

- See Soucek, Apollo : Lieutenant Soucek's world altitude record.

Aluminium. See Brenner, Paul : Korrosionsschutz von vergübaren Aluminiumlegierungen im Flugzeugbau.

- See Gaylor, Marie L. V., and G. D. Preston : The age hardening of some

aluminium alloys.

--See Grogan, J. D., and T. H. Schofield : Report on some properties of

alloys of aluminium with thorium and silicon.

- See Melchior, Paul : Aluminium, die Leichtmetalle und ihre Legierungen.

- See Rosenhain, W., and S. L. Archbutt: Investigation into the use of a

sand cast test bar for specification purposes for aluminium alloys.

- See Soldering: Principles involved in soldering aluminium castings on

sheets.

Amarillo, Tex. See Helium : Helium plant makes initial shipment.

t

American Bureau of Aircraft, Inc. Register; licensed, temporary license* and indentified aircraft of U. 3. A. 1929—New York City, American Bureau of aircraft, inc., 1929.

American Eagle. American Eagle models for 1929.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, p. 118, ill.

American Society of Mechanical Engineers. Progress in aeronautics. Mech. Eng., Vol. 51, No. 1 (Jan. 1929), New York, pp. 5-13, ill.

Amick, Hugh. Aviation financing and other true talk by James A. Talbot.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 28-29.

- Electrical eye that will see through fog.

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 55-56.

- The " Fimmale " wing.

U. S. Air Services, Vol. 14, No. 11 (Nov. 1929), Washington, D. C, pp. 34-37, ill.

-- The story of Walter H. Beech.

U. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, D. C, pp. 38-42, ill.

- Work by the ground crew of trackless traffic.

U. S. Air Services, Vol. 14, No. 11 (Nov. 1929), Washington, D. C, p. 51.

Amiot. The Amiot S. E. C. M. 110 C. 1. A single-seat pursuit monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars Nos. 97, June 19, 1929, Washington, July 1929, p. 5, ills.

Amphibians. All-metal amphibian to cruise long distances.

Pop. Mech., Vol. 52 (Oct. 1929), Chicago, p. 630, ill.

- Amphibian light 'planes.

Plight, Vol. 21, No. 26 (June 27, 1929), London, pp. 515-517, ill.

- See Sikorsky, Igor I. : Some aspects of the seaplane and the amphibian.

Amundsen, Roald Engelbregt Gravning. See Ellsworth, Lincoln : Air pioneering in the Arctic; the two polar nights of Roald Amundsen and Lincoln Ellsworth. Part I: The 1925 flight from Spitzbergen to 88° north; Part II. The first crossing of the polar sea, 1926.

- See Torroja, José M.a : Roald Engebrecht Amundsen. El explorador y el

nombre.

Anderson, Carl R. Organized recreation at flying schools.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 54-55, 246, ill.

Andes. La traversée des Andes par les avions eie transport.

L'Aéronautique, lime année, No. 122 (juil. 1929), Paris, p. 248, ill.

- See Grow, Henry B. : Blazing an aerial trail over the Andes.

- See Lobo, Gustavo : Flying over the Andes on business bent.

Andrews, Marshall. A reply to " Flying courtesy." A working newspaperman speaks his mind about the story in the November issue of the Aeronautic Review.

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 46, 60, port.

Andrews, W. R. The estimation of no-lift characteristics. (With a discussion of the results of the tunnel tests on the Ml to M27 series.)

Aircraft Engineer suppl. Plight, Vol. 21, No. 26 (Dec. 27, 1929), London, p. 1348 g.

- The tail plane area to give longitudinal stability.

Aircraft Engineer suppl., Plight, Vol. 21, No. 26, 30 (June 27, July 25, 1929), London, pp. 522f-522h, 778a-778c.

Anemometer. See Dryden, H. L., and A. M. Kuethe: The measurement of fluctuations of air speed by the hot-wire anemometer.

Angermtjnd, Walter. Der Daniel Guggenheim-Fonds.

Die Luftwacht, Heft 3, Mârz 1929, Berlin, pp. 117-120.

Angstrom, Tord. K. Aeronautical research in Sweden.

Journ. Roy. Aer. Soc, Vol. 33, No. 226 (Oct. 1929), London, pp. 897-914, ills., diagrs.

Anntjnzio, Gabriel d'. See Pinedo, Francisco de: Mi vuelo a través del At-lântico y de las dos Americas ; prefacio de Gabriel d'Annunzio.

Antarctic. Antarctic exploration by air.

Flight, Vol. 21, No. 3 (Jan. 17, 1929), London, pp. 50-51, map.

- The first Antarctic flight in history.

U. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, pp. 49-50, ill.

Arado. The Arado " Treff AS."

Flight, Vol. 21, No. 46 (Nov. 15, 1929), London, pp. 1213-1214, ill., diagr.

Archbutt, S. L. See Rosenhain, W., and S. L. Archbutt': Investigation into the use of a sand cast test bar for specification purposes for aluminium alloys.

Arctic. Airships and arctic meteorology.

Nature, Vol. 124, No. 3134 (Nov. 23, 1929), London, pp. 785-786.

- A suggested safe and quick Arctic air route.

Flight, Vol. 21, No. 19 (May 9, 1929), London, p. 390.

- See Berson, Arthur : Die Plane der "Aeroarctic."

- See Lundborg, Einar Paul Albert Muni : The Arctic rescue ; how Nobile

was saved.

- See Maddalena, Umberto : I miei voli sulle regioni polari.

- See Neely, Frederick R. : To Siberia and return. Alaskan airmen biaze

a commercial air trail across the Arctic wastes.

Arctic regions. See Ellsworth, Lincoln : Air pioneering in the Arctic ; the two polar flights of Roald Amundsen and Lincoln Ellsworth. Part I : The 1925 flight from Spitzbergen to 88° north ; Part II : The first crossing of the polar sea, 1926.

Argosy. The new "Argosy."

Flight, Vol. 21, No. 23 (June 6, 1929), London, p. 461, ill.

Arizona. See Scudder, Lawrence W. : Arizona from the air. The vantage point of the eagle offers scenic delights to the airplane tourist.

Arkansas. See Elgin, Hugh: Arkansas air tour. Second annual event is the most successful and profitable.

Armament. See Coupland, R. C. : Recent developments in aircraft armament. Armco. See Robertson, Andrew, and A. J. Newport: Report on the drop of stress at yield in Armco iron.

Armengaud. Quelques enseignements des campagnes du Riff en matière d'aviation.

Paris-Nancy-Strasbourg.

Armstrong, E. R. See White, P. W. : Bridging the ocean with man-made islands ; interview with E. R. Armstrong.

Armstrong-Siddeley. The Armstrong Siddeley aero engines.

Flight, Vol. 21, No. 15, 18 (April 11, May 2, 1929), London, pp. 293-296, 357-361, ill., charts.

- The 100-110 H. P. Armstrong Siddeley Genet Major engine.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 13 (Sept. 25, 1929), London, pp. 815-816, ill.

Armstrong-Whitworth. New Armstrong-Whitworth "Argosies."

Flight, Vol. 21, No. 11 (Mar. 14, 1929), London, p. 205, ill.

- See Reynolds, R. : The Armstrong-Whitworth wind tunnel.

Army-Navy. Fifth Army-Navy air standards conference.

Airway ^ge, Vol. 10, No. 4 (Apr. 1929), New York, pp. 439-443, ill.

Army Ordnance Association. See Marsh, Henry H. : The ordnance display. N. A. A. guest at eleventh annual meeting of Army Ordnance Association.

Arnstein, Karl. See Wright, Milton : Builders of the aviation industry.

Arrowhead trail. See Hanshue, Harris M. : Over the arrowhead trail. The western air express trip is more than a flight—it's an education.

Arthur, W. E. How shall we design our airports?

Scient. Amer., Vol. 141, No. 4 (Oct. 1929), New York, pp. 298-301, ill.

Artificial horizon. See Spencer, G. K. : Artificial horizon for aircraft.

Ashmore, Edward Bailey. Air defence.

London, New York, Longmans, Green and Co., 1929, pp. vii, 179, ill., map, diagr.

Assolant. See M. D. : Quelques precisions sur la traversée de l'Atlantique d'Assolant, Lefèvre et Lotti.

Atlantic. See Dew, Arthur W. : The first nonstop transatlantic flight.

- ~See Gavaldá, José M.a de : El nuevo y rápido trasatlántico " Bremen."

- See Hamel, G. : Les conditions à remplir pour faciliter la traversée

aérienne transocéanique.

- See Hay, Lady Drummond : Flying across the Atlantic.

- See M. D. : Quelques précisions sur la traversée de l'Atlantique d'Assolant, Lefèvre et Lotti.

- See Pinedo, Francisco de : Mi vuelo a través del Atlántoco y de las dos

Americas; prefacio de Gabriel d'Annunzio.

- See Transatlantic.

- See Transoceanic: Transoceanic ventures.

Atlas. See Jones, E. T. : Flight tests on an Atlas fitted with automatic slots connected with the ailerons and some data relevant to the design of auto-slots for R. A. F. 28 section wing.

Atmosphere. See Aimé, Emmanuel: L'atmosphère.

- See Bureau, R. : Électricité atmosphérique. Sur la variation diurne des

parasites atmosphériques; moyennes mensuelles, variation annuelle, influences météorologiques.

- See Eredia, Filippo: Sulla variazione délia colorazione azzurra dell'atmosfera.

- See Esnault-Pelterie, R. : Une nouvelle formule pour la détermination de

la densité atmosphérique en function de l'altitude.

Atmosphere. See Selga, Miguel: Investigation of the upper air by means of airplanes.

Atomic hydrogen welding. See Alexander, Peter P.: Atomic hydrogen welding process.

Attal, Salvatore. L'arma aerea come fattore decisive della vittoria. Riv. Aeron., Anno 5, N. 7 (Luglio 1929), Roma, pp. 74-90.

- II dominio dell 'aria—Teoria e pratica.

Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 42-57.

Atterbury, W. W. Linking rail and air transport.

U. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, pp. 44-48, ill., map.

- Looking ahead in transportation; coordination of trains, motor cars, and

airplanes.

Review of Reviews, Vol. 79 (Apr. 1929), New York, pp. 59-62, ill., map.

- The railroads enter aviation.

Pennsylvania Railroad Information, Vol. 1, No. 2 (July 1, 1929), Philadelphia, pp. 5-30, ill.

Sat. Even. Post, Vol. 201 (Mar. 30, 1929), Philadelphia, pp. 14-15, ill.

Australia. To Australia in a fortnight.

Flight, Vol. 21, No. 12 (Mar. 21, 1929), London, pp. 230-231, ill.

- See Hinkler, J. H. L. B.: My flight to Australia.

- See Rothman, A. D.: America's part in Australian aviation.

Autogiro. Flying windmill that would shock Quixote.

Literary Digest, Vol. 100 (Feb. 9, 1929), New York, pp. 62-70, ill.

- See Bertrandias, V. B.: The autogyro.

- See Cierva, Juan de la: The autogiro.

- See Cierva, Juan de la, and D. F. Rose: From glider to autogiro.

- See Cierva, Juan de la: Le nouvel autogire la Cierva 80 CV.

- See Cierva, Juan de la: Theory of the autogiro.

- See dauert, H., and C. N. H. Lock: Characteristics of an autogyro.

-■ See Glauert, H.: On the horizontal flight of a helicopter.

- See Glauert, H., and C. N. H. Lock: A summary of the experimental and

theoretical investigations of the characteristics of an autogyro.

- See Hosking, H.: Improved Cierva autogiro tested in flight by inventor.

- See Isacco: L'helicogyre Isacco.

- See Isacco, V.: The helicogyre.

- See Lock, C. N. H., and H. C. H. Townsend: Wind tunnel experiments on

a model autogyro at small angles of incidence.

-■ See Osborn, Barl D.: How the autogiro flies with comment by H. F.

Pitcairn.

- See Osborn, Earl D.: The Pitcairn autogiro.

- See Rose, D. F.: Windmill that flies.

- See Westing, Ralph: Autogiroing in America. How and why Harold F.

Pitcairn regards the child of Cierva.

Automatic control. See Constantin, L.: La stabilisation automatique des avionsi la perte de vitesse et la girouette Constantin.

- See Gradenwitz, Alfred: Device for the automatic control of airplanes.

Automatic! pilot. Automatic pilot for airplanes

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, p. 1943, ill.

- Sperry automatic pilot.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, p. 166, ill.

Automatic slot. The automatic slot.

Aircraft Engineer suppl. Flight, Vol. 21, No. 5 (Jan. 31, 1929), London, p. 82h.

Autoslot. See Bradfield, F. B., and R. A. Fairthorne: On a method of delaying the opening of an autoslot (wind tunnel experiments).

Aviano. See Caracciolo, Mario: La scuola di aviazione di Aviano (1911).

Aviation. See Osborn, Earl D.: Aviation, now a McGraw-Hill publication, enters an era of greater service.

Aviators. Aviators need more help from the ground.

U. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, D. C, pp. 58-62.

- Caterpillars who leap before they look.

Literary Digest, Vol. 100 (Feh. 9, 1929), New York, pp. 71-76.

- The world's first aviators.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, p. 22. Department of Commerce, Aeronautics hranch.

--See Pilots.

Avigation. See Elm, Ienar Ewald : Avigation by dead reckoning (aerial navigation).

Avro. The Avro "Antelope."

Flight, Vol. 21, No. 23 (June 6, 1929), London, pp. 457-458, ill.

- Avro " Fives " and " Tens " in production.

Flight, Vol. 21, No. 46 (Nov. 15, 1929), London, pp. 1209-1212, ill.

- The Avro works.

The Aeroplane, Vol. 37, No. 20 (Nov. 13, 1929), London, pp. 1165-1172, ill., diagr.

- See Clark, K. W., and W. G. Jennings: Full scale determination of the

motion of an Avro aeroplane when stalled.

- See Jones, E. T., and K. W. Clark: Wind tunnel tests for design of an

automatic slot for Avro 504. N.

Axelson. Axelson seven cylinder 150 h. p. engine.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 94, 96, ill.

Aymat, J. M. Navigacion aeria. Pp. 402, ill., tabls.

B

Babson, R. W. Air flivvers and the future.

Forum, Vol. 81 (Mar. 1929), New York, pp. 157-164, ill.

Backhurst, I. See Cox, H. L., and I. Backhurst: The effect of stress upon the X-ray reflections from tungsten wire at air temperature.

Backus, Harold A. Welding experience gained by one aircraft builder.

Airway Age, Vol. 10, No. 6 (June 1929), New York, pp. 801-805, ill.

Baguio. See Kilner, Walter G. : An air line to Baguio. Opportunity awaits a progressive firm to render a service to humanity.

Bailey, Lady. Lady Bailey lectures on her tour to Capetown and back. Flight, Vol. 21, No. 45 (Nov. 8, 1929), London, pp. 1200-1201.

- Lady Bailey's record solo flight.

Flight, Vol. 21, No. 2 (Jan. 10, 1929), London, pp. 29-30, map.

- On Lady Bailey's achievement.

The Aeroplane, Vol. 36, No. 4 (Jan. 23, 1929), London, pp. 105-108, ill.

Balbo, Italo. Contributo dell'Italia alla navigazione aerea. Memoria presentata al Congresso internazionale di aeronautica civile a Washington dalla delegazione governativa italiana.

Roma, tip. del Senato, G. Bardi, 1928, pp. 19.

- See Italy: Le vie del cielo, Raccolta di scritte aeronautici [a cura di]

Aldo Barbaro, Mussolini, D'Annunzio, Italo Balbo [ecc].

Baldridge, H. C. Western States hold air conference.

Air Commerce Bulletin, Vol. 1, No. 4 (Aug. 15, 1929), Washington, pp. 11-12. Department of Commerce, Aeronautics branch.

Balloons. See Chatterjee, G. : Balloons for upper air work.

- See Germany: Un nouveau ballon captif allemand.

- See Gordon-Bennett: La coupe Gordon-Bennett des ballons libres.

- See Linke, F. : Maximalhöhe eines Ballons.

- See Settie, Thomas G. W. : The king of sports. You will certainly book

passage on a balloon for anywhere after reading this.

- See Van Orman, Ward T. : Protecting the balloonist from lightning.

Bamber, Millard J. Wind tunnel tests on an airfoil equipped with a split flap

and a slot.

National Advisory Committee for Aeronautics, Technical Notes No. 324, Oct. 18, 1929, Washington, October 1929, pp. 6, ills., diagrs., tabi.

- See Knight, Montgomery, and Millard J. Bamber : Wind tunnel tests on

airfoil boundary layer control using a backward opening slot.

- See Knight, Montgomery, and Millard J. Bamber: Wind tunnel tests on

a model of a monoplane wing with floating ailerons.

Bamford, A. J. Vertical air currents as measured by pilot balloons.

Quarterly Journal of the Royal Meteorological Society, Vol. 55, No. 232 (Oct. 1929), London, pp. 363-384, diagrs., tabls.

Baranoff, Alexis v. Beitrag zur Frage der Stabilität der Trudelbewegung.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 175-182, ill., diagrs.

Barbaro, Aldo. See Italy: Le vie del cielo. Raccolta di scritti aeronautici [a cura di] Aldo Barbaro, Mussolini, D'Annunzio, Italo Balbo [ecc].

Barcelona. See Ewald: Luftausstellungen in Barcelona und Magdeburg.

Barker, Edna K. "Aviation " ; a new game of cards for young and old.

San Francisco, Pacific Typesetting and Type Foundry Company, 192s, pp. 66, ill.

Barling. Barling monoplane.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, 92, ill.

Barlow, T. M. Weight of aircraft.

Journ. Roy. Aer. Soc, Vol. 33, No. 220 (April 1929), London, pp. 239-268, ills., diagrs.

9573—30-3

Barnwell, F. S. Notes on the aeronautical show held in Chicago, U. S. A., December 1st to 9th, 1928.

Journ. Roy. Aer. Soc, Vol. 33, No. 221 (May 1929), London, pp. 392-399.

Barrett, A. P. Wings over Texas.

Review of Reviews, Vol. 80 (Nov. 1929), New York, pp. 162-164, ill.

Barrett-Lennard, J. A British view of American methods.

Airway Age, Vol. 10, No. 7 (July 1929), New York, pp. 1002-1003, ill.

Barringer, L. B. Through western skies with a box camera.

Photo-Era, Vol. 63 (Sept. 1929), Wolfeboro, N. H., pp. 132-134, ill.

Baschin, Otto. Luftfahrt und Geographie.

Zeitschr. Flugt. Motorluftsch., 20 Jahrg., 14. u. 15. Heft (31. Juli 1929) München, pp. 365-366.

Baskey, Earl F. The American airplane market in China.

Aviation, Vol. 27, No. 4 (July 27, 1929), New York, pp. 220-221, 111.

Bassi, Silvio. II tema di dirigibili.

Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 282-285.

Bastico, Ettore. Del tutto e della proporzione delle parti.

Riv. Aeron., Anno 5, N. 3 (Marzo 1929), Roma, pp. 453-480.

- II tema di battaglia aérea e di proporzione fra il tutto e le parti. .

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 451-483.

Batson, A. S. See Irving, H. B., and A. S. Batson: Experiments on a model of a single seater fighter aeroplane in connection with spinning.

- See Irving, H. B., A. S. Batson, and A. L. Maidens : Rolling and sideslip

experiments on a model slotted biplane of R. A. F. 31 section.

- See Irving, H. B., and A. S. Batson : Rolling experiments on an aerofoil

of R. A. F. 32 section.

- See Irving, H. B., and A. S. Batson : Some early model experiments of

devices for improving lateral control near the stall.

Battey, George M., jr. The flying lion's crash into aviation.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 20-21, 50, ill.

—— Homo sapiens. A valuable discussion of the human element in flying and also of the important matter of insurance protection for pilots and mechanics.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, pp. 33-34.

- Two hours solo. A kaleidoscope of events that befell an aspiring crosscountry pilot.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, pp. 35-36

Bauer, M. H. Bedeutung der Normen für die Luftfahrt.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 16. Heft (28. Aug. 1929), München, p. 427.

Baule. Le meeting de la Baule.

L'Aérophile, 37e année, Nos. 15-16 (ler-15 août 1929), Paris, pp. 230-231.

Baumgaertel, K. A. Airplane photography.

Photo-Era, Vol. 63 (Aug. 1929), Wolfeboro, N. H., p. 108.

Beacons. Radio range beacons for airways.

Air Commerce Bulletin, Vol. 1, No. 11 (Dec. 2, 1929), Washington, pp. 11-12. Department of Commerce, Aeronautics branch.

- See Ellis, L. B. : A beacon for birdmen. Lights to guide fliers will be

added to the giant bell tower in Florida's wild-life sanctuary.

Beacons. See Klemin, Alexander: Learning to use our wings. The Chicago air show. ILA. Gas holder as aviation " Lighthouse."

- See Perry, Armstrong: Radio guides the airway traveler. Radio beacons

provide increased safety in fog and storm.

- See Smith, J. E.: Evolution of aircraft and marine radio beacons.

- See Winters, S. R.: Wind-driven generator for beacons.

Beale, M. Air-jaunting over the ancient east.

Asia, Vol. 29 (Nov. 1929), New York, pp. 848-853, ill., maps.

Beams. Precise formulas for restrained beam with axial load of compression, and with one restraining moment known. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 624 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 3, illus. Air Corps Technical Report No. 2899.

- See Howard, H. B.: The graphical and analytical determination of

stresses in single span and continuous beams under end compression and lateral lqad with variations in shear, distributed load and moment of inertia.

Beardslet, E. G. See Rothrock, A. M., and E. G. Beardsley: Some effects of air flow on the penetration and distribution of oil sprays.

Bearings. See Nealey, J. B.: Heat-treating aircraft engine bearings.

- See Steigenberger, O.: Calculation of the pressures on aircraft engine

bearings.

Beck, Waldemar. The air political situation of England.

Aeronautica, Vol. 3, No. 7 (July 1929), Amsterdam, Holland, pp. 130-134, ill.

Becker, R. Impact waves and detonation.

National Advisory Committee for Aeronautics, Technical Memorandums Nos. 505. and 506, March 21 and 28, 1929, Washington, March 1929, Part I, pp. 41, ills.; Part ii, pp. 24, ill., diagrs.

From Zeitschrift fur Physik, Volume VIII.

Beech, Walter H. See Amick, Hugh : The story of Walter H. Beech.

Bell, A. H. See Jones, R., and A. H. Bell: The distribution of pressure over, the hull and fins of a model of the rigid airship R. 101, and a determination of the hinge moments on the control surfaces.

- See Jones, R., and A. H. Bell: Experiments on a model of the airship

R. 101.

Bellah, James Warn.er. Flying with both feet off the ground; safe passenger flying.

Sat. Even. Post, Vol. 201 (May 18, 1929), Philadelphia, pp. 37-39, ill.

--Linking the Americas.

Sat. Even. Post, Vol. 201 (Apr. 20, 1929), Philadelphia, pp. 6-7, ill.

- The Miami-Panama mail route.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 43-44, 250, 252, ill., map.

- Railroading the airlines.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 41, 286-290, ill.

- Sewing up the Canal Zone.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 61, 260-261, ill., map.

Bellanca. The Bellanca Tandem.

The Aeroplane, Vol. 37, No. 15 (Oct. 9, 1929), London, p. 904, ill. Aviation, Vol. 27, No. 13 (Sept. 28, 1929), New York, pp. 659-662, ill.

Bellanca, Guiseppe M. See Wright, Milton : Builders of the aviation industry.

Bellonte. See Coste et Bellonte: Notes sur le matériel avec lequel Costes et Bellonte ont battu le record du monde de distance.

Beltrami, Gian Mario. L'impiego dell'armata aerea secondo il nuovo codice tattico del H. Esercito.

Riv. Aeron., Anno 5, N. 2 (Feb. 1929), Roma, pp. 261-276.

- Le rotte del traflico aereo mondiale.

Riv. Aeron., Anno 5, N. 1 (Gen. 1929), Roma, pp. 28-49, map.

Bender O. Funkpeilung bei Grossflügen.

Die Luftwacht, Heft 2, Feb. 1929, Berlin, pp. 68-73, ill.

Bennett, F. (Mrs.). Shall I marry an aviator?

Good Housekeeping, Vol. 89 (Aug. 1929), New York, pp. 80-81, ill.

Bennett, Richard Rea. Aviation ; its commercial and financial aspects. New York, The Ronald Press Company, 1929, pp. xi, 127, ill.

Benson, S. R. Flying boats old and new.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, pp. 30, 56, ills.

Bergmann, Stefan, und H. Reissner. Neuere Probleme aus der Flugzeugstatik. Uber die Knickung von Wellblechstreifen bei Schubbeanspruchung. Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 18. Heft (28. Sept. 1929), München, pp. 475-481, ills., diagrs., tabls.

Berlin. Höhenwetterdienst. Flugfunkwetter. Die Flugwettermeldungen Europas. Mit Sendezeiten, Wellenlängen, Rufnamen und Kennziffern. Berlin, 1928, pp. 197.

- See International Luftfahrt Ausstellung: Regulations for the International Aeronautical exhibition, Berlin 1928, October 7th-28th.

Bernard. The Bernard 20 C. 1 (French). A single-seat pursuit monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 98, July 31, 1929, Washington, July 1929, pp. 4, ills.

Berson, Arthur. Junkers ; Festschrift.

Berlin, V. D. I. Verlag, 1929, pp. 99, ill.

Volume prepared to* celebrate the seventieth birthday of Hugo Junkers.

- Die Pläne der "Aeroarctic."

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 14. u. 15 Heft (31. Juli 1929), München, pp. 358-360, map.

- See Bruns, Walther: Professor Berson und die "Aeroarctic."

- See Süring, R. : Arthur Berson als Meteorologe.

Berson, Aethur Joseph Stanislaus. See Internationale Gesellschaft zur erfor-schung der Arktis mit Luftfahrzeugen: Verhandlungen der II. ordentl. Versammlung in Leningrad 18.-23. juni 1928 ; hrsg. im auftrage der gesellschaft von A. Berson und L. Breitfuss.

Berthelot explosive wave. See Becker, R. : Impact waves and detonation.

Bertra'ndias, V. E. The autogyro.

Engineers and Engineering, Vol. 46 No. 1 (Jan. 1929), Philadelphia, pp. 26-28.

Bertùccioli, A., e B. Pinchettt. Ali nel cielo. Antologia dell'aviazione, a cura

di A. Bertùccioli e B. Pinchetti.

Roma, libr. del Littorio (s. tip.), [1929], pp. vi, 464.

Besancon, Georges. L'année aéronautique 1928. Rapport présenté à l'Assemblée générale de PAé. C. F.

L'Aérophile, 37e année, Nos. 7-8 (1er- 15 avril 1929), Paris, pp. 99-104, ill.

Betz, A., and E. Petersohn. Contribution to the aileron theory.

National Advisory Committee for Aeronautics, Technical Memorandums No. 542, Dec. 5, 1929, Washington, December 1929, pp. 9, diagrs.

From Zeitschrift für angewandte Mathematik and Mechanik, Volume VIII, 1928.

Bibliography. Abstracts and notices from the scientific and technical press.

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Bingham, Hiram. Amendment to Air Commerce Act introduced by Senator Hiram Bingham passes Congress.

Aeronautic Review, Vol. 7, No. 3 (March 1929), Washington, pp. 9, 20, port.

- Don't scatter your fire. Aim it at Congress and the administration for

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Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, p. 35.

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Black, Archibald. Civil airports and airways. With the collaboration of a group of 19 specialists in the different angles of airport construction and equipment.

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Flight, Vol. 21, No. 3 (Jan. 17, 1929), London, pp. 39-44, ill., diagr.

- The Blackburn "Bluebird" Mark IV (British). All-metal biplane.

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Blackburn, E. C, jr. Heating and ventilating for airport buildings.

Aviation, Vol. 27, Nos. 2-3 (July 13-20, 1929), New York, pp. 146-149, 171174, ill., diagr.

Blakemore, T. L., J. F. Boyle, and N. Meadowcroft. Design, construction and handling of nonrigid airships.

Aeronautical Engineering, Vol. 1, No. 2 (April-June 1929), London, pp. 29-42, ill.

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- Aviateurs contemporains, Claude Gonin.

L'Aérophile, 37e année, Nos. 3-4 (ler-15 fév. 1929), Paris, pp. 34, 38, port.

--Aviateurs contemporains. Le commandant Désiré Lucca.

L'Aérophile, 37e année, Nos. 5-6 (ler-15 mars 1929), Paris, pp. 66, 68, port.

- Aviateurs contemporains. Michel Detroyat.

L'Aérophile, 37e année, Nos. 23-24 (ler-15 déc. 1929), Paris, p. 354, ill., port.

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L'Aérophile, 37e année, Nos. 17-18 (ler-15-Sept. 1929), Paris, pp. 259-261, ill.

- Le commandant Rignot.

L'Aérophile, 37e année, Nos. 9-10 (ler-15 mai 1929), Paris, p. 130.

- Personnalitiés de l'aéronautique. Blondel La Rougerie.

L'Aérophile, 27e année, Nos. 17-18 (ler-15 Sept. 1929), Paris, p. 258, port.

- La presse en visite aux usines Renault.

L'Aérophile, 27e année, Nos. 23-24 (ler-15 déc. 1929), Paris, pp. 372-373, ill.

- Le rallye transat de l'Aero-Club de France.

l'Aérophile, 37c année, Nos. 13-14 (ler-15 juil. 1929), Paris, pp. 195-199,

ill.

Blanchet, Georges. Une visite aux Ateliers et Chantiers de la Loire.

L'Aérophile, 37e année, Nos. 9-10 (ler-15 mai 1929), Paris, p. 153.

- See Gordon-Bennett: La coupe Gordon-Bennett des ballons libres.

Blee, Harry Harmon. The future of air express.

Aviation, Vol. 27, No. 24 (Dec. 14, 1929), New York, pp. 1155-1157, ill.

- El proyecto de puertos aereos adecuados y seguros.

Ingenieria, Vol. 3, No. 2 (Feb. 1929), Mexico, pp. 78-79, 86, ill.

- See United States Airway Marking Committee : Report of airway marking

committee. January 23, 1929.

Bleistein, W. Luftschiffe am Mast.

Zetischr. Flugt. Motorluftsch., 20. Jahrg., 14. u. 15. Heft (31 Juli 1929), München, pp. 362-365.

Blenk, Hermann, und Fritz Liebers. Gekoppelte Biegungs-, Torsions- und Querruderschwingungen von freitragenden und halbfreitragenden Fügein. Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof. München, [1929], pp. 257-281, ills., diagrs., tabl.

Luftfahrtforschung, Berichte, Band 4, Heft 3, München und Berlin, R. Oldenbourg, 1929, pp. 40, ill.

Blenk, Hermann. Göttinger Sechskomponentenmessungen au Flügeln mit V-Form, Pfeilform und Verwindung.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 183-194, ills., diagrs.

--See Mathias, Gotthold: Startformeln für Landflugzeuge. Eine Ergänzung zu der gleichnamigen Abhandlung v. H. Blenk.

Blériot. See Dollfus, Charles: Le Blériot XI de la traversée de la Manche.

Bleriot, Louis. Twenty years after. Louis Bleriot flies the Channel again. Flight, Vol. 21, No. 31 (Aug. 1, 1929), London, pp. 815-817, ill.

- See M. L. : Le vingtième anniversaire de la traversée de la Manche.

Bleriot, Luigi. Problem! del volo a grande distanza.

Riv. Aeron., Anno 5, N. 9 (Sett. 1929), Roma, pp. 443-447.

Bley, Wulf. Selbsthilfe zur Lage in der Luftfahrt.

Illustrierte Flug-Woche, 11. Jahrg., Heft 4, 1929, Berlin-Lichterfelde, pp. 57-63.

Blimps. Nonrigid ship developments. Four blimps now operating; airship school formed.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, p. 32, ill.

- See Gannett, W. H. : Blimps.

Blind flying. Le méthode rougerie de pilotage sans visibilité.

L'Aérophile, 37e année, Nos. 11-14 (ler-15 juin-ler-15 juil. 1929), Paris, pp. 185, 214-215, 111.

- See Carroll, Thomas, and William H. McAvoy: Spiral tendency in blind

flying.

- See Guggenheim: Guggenheim fund reports solution of blind flying

problem.

- See Jamieson, L. S. : Flying blind.

- See Road, K. T. : Eyes for blind flying.

- See White, Henry J.: Blind flying instruction in France.

Bloch, R. See Calot, Charles : Les transports commerciaux ; manuel pratique ; chemins de fer—navigation—automobilisme—aviation ; préface de R. Bloch . . .

Blondel La Rougerie. See Blanchet, Georges : Personnalitiés de l'aéronautique. Blondel La Rougerie.

Blood circulation. See Kaiser, Wilhelm : Blutkreislauf-Un ter suchungen im Unterdruck.

- See Kaiser, Wilhelm: Über Veränderungen des Blutkreislaufs im Überdruck.

Bluebird. See Blackburn : The Blackburn " Bluebird " Mark IV (British). All-metal biplane.

Blum, Otto, und Carl Pirath. Lebensfragen der Deutschen Luftfahrt. Stuttgart, Verlag W. Kohlhammer, 1928.

Blunk, F. M. Gliding is "revived in America.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 45, 284, ill.

Blyth, J. D. Spinning.

Aircraft Engineer suppl. Flight, Vol. 21, Nos. 43, 48 (Oct. 25, Nov. 29, 1929), London, pp. 1140a-1140e, 1262d-1262g, diagr.

Boehm, Alois Robert. Das Gross und Riesentlugzeug in Deutschland und England. Large-sized and giant aircraft in Germany and England. Die Luftwacht, Heft 7, Juli 1929, Berlin, pp. 304-311, ill. Boehnlein, Charles. Integration of the theoretical expression for drag. Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, pp. 826-829.

Boeing. Boeing B-1E flying boat.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), p. 100, ill., diagr.

-- Boeing model 95 mail plane.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 104, ill.

- Boeing Model 100 sport plane.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 110, 112, ill., diagr.

—— The Boeing (Model 100) sport plane.

Aviation, Vol. 27, No. 4 (July 27, 1929), New York, pp. 225-226, ill., diagr.

- See Carver, Peggy : A university of the air. Boeing school of aeronautics

will formally open at Oakland Airport, September 15.

-— See Klemin, Alexander : Learning to use our wings. * * * The Boeing 80-A.

- See Lane, D. R. : Operating methods of Boeing transport.

Boeing, William E. Air transportation.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, pp. 36-37, 172, ill.

- Night-flying mail and passengers.

Airway Age, Vol. 10, No. 6 (June 1929), New York, pp. 795-797, ill., map.

- See Wright, Milton : Builders of the aviation industry.

Boel, Maurice. Scientific studies of natural flight.

Mech. Eng., Vol. 51, No. 10 (Oct. 1929), New York, pp. 753-756, ill.

Boiron, Charles. Marseille port aérien.

Aëronautica, Vol. 3, No. 1 (Jan. 1929) Amsterdam, Holland, pp. 9-11, port.

Box, E. W. See Ellis, L. B. : A beacon for birdmen. Lights to guide fliers will be added to the giant bell tower in Florida's wild-life sanctuary.

Bolas, H., and G. A. Allwaed. Loads on the main planes and tail of an aeroplane when recovering from a dive.

Aer. Res. Comm., Rep. Mem., No. 1229 (Ae. 384), August 1928, London, 1929, pp. 24, diagrs.

Aeronautics, Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 886-909, diagrs.

Bollati, Ambrogio. L'aviazione tedesca nella battaglia della Marna. Riv. Aeron., Anno 5, N. 5 (mag. 1929), Roma, pp. 234-255.

Bolts. See Schrenk, Martin, und Max v. : Die Festigkeit von Bolzen in Holtz-bauteilen.

Bondor, Frank M. Intercrystalline corrosion of duralumin.

Aeronautical Engineering Section, Aviation, Vol. 26, No. 24 (June 15, 1929), New York, pp. XCIX-C, ill.

Bonforte, John. Airport engineering.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 98, 100.

Bonifacio, Ferdinando. Il velivolo moderno con cenno sui dirigibili. Macchine a sostentazione statica e dinamica ; teoria del volo ; technologia e prove di collaudo dei materiali aeronautici ; tecnica costruttiva ; velivoli metallici ; prove statiche ; collaudo in volo ; manutenzione e verifica dei velivoli ; misure di sicurezza contro gli incendi a bordo ; descrizione dei velivoli ; paracadute ; gruppo motopropulsore ed accessori ; volo a vela : navi portaerei e catapulte ; appendice: legislazione sugli aeromobili. Seconda edizione completamente rifatta.

Milano, TJ. Hoepli (Stucchi-Ceretti), 1 1929, pp. xi, 431.

Bonnick, Sydney. With an aerial camera in Mexico.

Aero Digest, Voi. 15, No. 6 (Dee. 1929), New York, pp. 65-67, 272, 274, ill.

Bontemps, Arnold. Eugène Gilbert. Sa vie—ses evasions—sa mort.

La Vie Aérienne, 15e année, No. 96 (avril 1929), Paris, pp. 13-15, ill.

-- Un grand aviateur disparu, Eugène Gilbert.

La Vie Aérienne, 15e année, No. 97 (mai 1929), Paris, pp. 20-23, ill.

Books. See Leigh, R. : Aviation and the book business.

Boone, Andrew R. Increasing the Navy's scouting-spotting efficiency.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 53-54, ill.

- Location and ownership of airports.

Aviation, Vol. 26, No. 12 (March 23, 1929), New York, pp. 878-882, ill.

- New cleaner developed for airplane engines.

U. S. Air Services, Vol. 14, No. 6 (June 1929), Washington, D. C, pp. 6i2, 64, ill.

- Problems of air transport operation.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 154-157, ill.

- Research" laboratory at Stanford University.

Aviation, Vol. 26, No. 10 (March 9, 1929), New York, pp. 722-725, ill.

- Wings for whale shooters.

Pop. Mechs., Vol. 52 (Sept. 1929), Chicago, pp. 353-355, ill.

Boord, Cecil E. See Schaad, Raymond E., and Cecil E. Boord : Effects of knock-suppressing and knock-inducing substances on the ignition and partial combustion of certain fuels.

Bordini, Gianni. Note sui fattori della potenzialità bellica aerea.

Riv. Aeron., Anno 5, N. 5 (Mag. 1929), Roma, pp. 303-312.

Born, F. Die Behandlung der Probleme der Flugverkehrsbeleuchtung auf der Internationalen Seezeichenkonferenz in London.

Zeitsch. Fingt. Motorluftsch., 20. Jahrg., 23. Heft (14. Dez. 1929), München, p. 615.

Bosio, Antonio. Organizzazione del servizio riparazione e manutenzione apparecchi, riparazione e revisione motori.

Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 221-243.

Bossi, Enea. High powered aircraft engines.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 122.

Bostaph, F. D. How oil for aircraft is made.

U. S. Air Services, Vol. 14, No. 8 (Aug. 1929), Washington, D. C, pp. 44-46.

Boston. See Holcombe, T. G. : Boston develops its municipal airport under jurisdiction of the park commissioner.

Bothwell, E. J. Nickel cast iron engine cylinders.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 104, 106, ill.

Bottoms, R. R. The production and uses of helium gas.

Mech. Eng., Vol. 51, No. 9 (Sept. 1929), New York, pp. 663-666, ill.

Boulton and Paul. The Boulton and Paul "Partridge" (British). All-metal single-seat fighter.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 90, Feb. 15, 1929, Washington, February 1929, pp. 8, ills.

Bourne, R, Aerial survey in relation to the economic development of new countries, with special reference to an investigation carried out in Northern Rhodesia.

Oxford, The Clarendon Press, 1929, pp. 35, ill.

Bowen, R. Sidney, Jr. Advertising pays when it is good advertising.

Aviation, Vol. 27, No. 4 (July 27, 1929), New York, pp. 222-224, ill.

- The business of selling and servicing parachutes.

Aviation, Vol. 27, No. 15 (Oct. 12, 1929), New York, pp. 744-745, ill.

- The distributor . . who he is . . why he is . . and what he does.

Aviation, Vol. 26, No. 21 (May 25, 1929), New York, pp. 1788-1791, ill.

- Engine service from coast to coast.

Aviation, Vol. 27, No. 12 (Sept. 21, 1929), New York, pp. 601-602, ill.

- The importance of the national sales organization.

Aviation, Vol. 27, No. 24 (Dec. 14, 1929), New York, pp. 1152-1154, ill.

- National distribution through factory branches.

Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, pp. 784-786, ill.

- The New York show.

Aviation, Vol. 26, No. 7 (Feb. 16, 1929), New York, pp. 477-479, ill.

- 1928 airplane and engine production.

Aviation, Vol. 26, No. 10 (March 9, 1929), New York, pp. 718-721, ill.

- The part that the dealer plays.

Aviation, Vol. 27, No. 2 (July 13, 1929), New York, pp. 134-136, ill.

- Selling the plane market in 1929.

Aviation, Vol. 26, No. 1 (Jan. 5, 1929), New York, pp. 29-32, 54-58, ill.

Bowie, Edward Hall. Weather and the airplane ; a study of the model weather reporting service over the California airway.

New York. Published by the Daniel Guggenheim fund for the promotion of aeronautics, inc., 1929, pp. 27, ill.

Boyd, Peter. Flying in West Virginia. The advent of aircraft is a boon to the development of the mountain state.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, pp. 22-24, ills.

- Realtor looks skyward. He finds the airplane is raising property values

and opening up new areas.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, p. 40, ill.

Boyd, W. Y. Airways over Latin America.

Living Age, Vol. 336 (Mar. 1929), New York, pp. 47-50, ill.

Boykow, H. Mechanical control of airplanes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 504, March 18, 1929, Washington, March 1929, pp. 25, ills. From the 1927 Yearbook of the Wissenschaftliche Gesellschaft für Luftfahrt.

Boykow, J. M. Betrachtungen zum Nebelflug.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 21. Heft (14 Nov. 1929), München, pp. 549-553

---Meteorologische Navigation.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 14. u. 15 Heft (31. Juli 1929), München, pp. 379-381, ill.

Boyle, J. F. See Blakemore, T. L., J. F. Boyle and N. Meadowcroft: Design, construction, and handling of non-rigid airships.

Boynton, Henry G. Hot weather flying.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 76, 248, 250, ill.

Bradfield, F. B., and R. A. Fairthorne. On a method of delaying the opening of an autoslot (wind tunnel experiments).

Aer. Res. Comm., Rep. Mem., No. 1214, (Ae. 373), December 1928, London,

1928, pp 6, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 762-767, ills., diagrs., tabls.

Bradfield, F. B. Preliminary tests on the effect on the lift of a wing of the position of the airscrews relative to it.

Aer. Res. Comm., Rep. Mem., No. 1212, (Ae 371), November 1928, London,

1929, pp. 10, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 304-313, ill., diagrs., tabls.

Bradfield, F. B., and K. W. Clark. Wind tunnel experiments on the design of an automatic slot for R. A. F. 28 section, and on interconnection with ailerons.

Aer. Res. Comm., Rep. Mem., No. 1165, (Ae. 329), April 1928, London, 1929, pp. 20, ills., diagrs., tabls.

Aeronautics Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 742-761, ills., diagrs., tabls.

Bradfield, F. B., and F. W. G. Greener. Wind tunnel experiments on the design of an automatic slot for R. A. F. 31 section.

Aer. Res. Comm., Rep. Mem., No. 1190, (Ae. 352), August 1928, London, 1929, pp. 11, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 731-741, ills., diagrs., tabls.

Bradfield, F. B., and F. W. G. Greener. Wind tunnel experiments on the design of an automatic slot for R. A. F. 34 section.

Aer. Res. Comm., Rep. Mem., No. 1204, (Ae. 365), September 1928, London, 1929, pp. 11, ills., diagrs., tabls.

Aeronautics. Techn. Rep., Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 720-730, ills., diagrs., tabls.

Bradfield, F. B., and S. Scott Hall. Wind tunnel tests of a R. A. F. 30 wing fitted with a self-setting slotted wing (pilot plane).

Aer. Res. Comm., Rep. Mem., No. 1225 (Ae. 380), May 1927, London, 1929, pp. 12, ill., diagrs., tabls.

Aeronautics. Techn. Rep., Aer. Res. Comm. 1928-1929, Vol, Vol. 2, London. 1929, pp. 768-779, ills., diagrs., tabls. Beadfield, F. B., and K. W. Clark. Wind tunnel tests of aerofoils with pilot planes.

Aer. Res. Comm., Rep. Mem., No. 1213, (Ae. 372), November 1928, London, 1929, pp. 28, ills., diagrs., tabls.

Aeronautics, Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 780-805, ills., diagrs, tabls.

Brakes. Aircraft brakes.

Flight, Vol. 21, No. 40 (Oct. 4, 1929), London, pp. 1077-1079, diagr.

- More about aeroplane brakes.

The Aeroplane, Vol. 36, No. 18 (May 1, 1929), London, p. 710, diagr.

- Multiple disc brake.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, p. 168, ill.

- The Sikorsky multiple disc brake.

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, p. 72, ill.

- The use of wheel-brakes on aircraft.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 22 (Nov. 27, 1929), London, pp. 1235-1236, ill.

--Wheel-brake problems.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 22 (Nov. 27, 1929), London, pp. 1236, 1238, ill.

- See Carroll, Thomas, and Smith J. De France: The use of wheel brakes

on airplanes.

- See Kollinck, T.: Druckluftbremse und Driickluftlenkung für Landflugzeuge.

- See Kollinek, T.: Druckluft-Bremsung und Steuerung rollender Flugmaschinen.

- See Messier: Freins Messier pour roues d'avions.

- See Sikorsky: The Sikorsky multiple disc brake.

- See Vickers: New Vickers wheel brakes. Hydraulic system adopted.

Braking. See Breguet, Louis: Landing and braking of airplanes.

Brancker, Sefton. See Swoffer, Frank Arthur: Learning to fly; a course of elementary flying instruction . . . with a foreword by Air Vice-Marshal Sir Sefton Brancker.

Brandenberg. The status of German civil aeronautics.

Domestic Air News, Serial No. 46, Feb. 15, 1929, Washington, pp. 4-12. Department of Commerce, Aeronautics branch.

Brandes, E. W. Into primeval Papua by seaplane.

Nat. Geogr. Mag., Vol. 56 (Sept. 1929), Washington, D. C, pp. 253-332, ill., maps.

Brandt, Rolf. See Eckener, Hugo: Die Amerikafahrt des "Graf Zeppelin" . . . herausgegeben von Rolf Brandt.

Breda. The Breda " 15."

Flight, Vol. 21, No. 19 (May 9, 1929), London, pp. 378-379, ill., diagr.

Beedee, Sam. Sales factors in the cabin plane market.

Aviation, Vol. 27, No. 3 (July 20, 1929), New York, pp. 166-169, ill.

Beedee, Sam 0. Opening foreign markets.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 456-458, ill.

- Significance of " ? " flight.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 158-160, ill.

Beeguet, Louis. Landing and braking of airplanes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 507, April 4, 1929, Washington, April 1929, pp. 29, diagrs., tabls. From supplements to Nos. 8 and 9, 1928, of La Chronique des Avions Breguet.

Breitfuss, Lev L'vovich. See Internationale Gesellschaft zur erforschung der Arktis mit Luftfahrzeugen : Verhandlungen der II. ordenti. Versammlung in Leningrad 18.-23. juni 1928; hrsg. im auftrage der gesellschaft von A. Berson und L. Breitfuss.

Bremen. Das Heinkel-Flugzeugkatapult auf dem neuen Riesenschnelldampfer

" Bremen " des Norddeutschen Lloyd.

Die Luftwacht, Heft 7, Juli 1929, Berlin, p. 293, ill.

- See Gavaldá, José M.° de : El nuevo y rapido trasatlántico " Bremen."

- See Splanemann, B. : Das Flugzeugkatapult auf dem Lloyddampfer

" Bremen."

Brenner, Paul. Dynamische Festigkeit von Flugzeug-Konstruktionsteilen.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 148-155, ills., diagrs.

- Korrosionsschutz von vergütbaren Aluminiumlegierungen im Flugzeugbau.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 288-293, ills., diagrs.

- Lautal as a material for airplane construction.

National Advisory Committee for Aeronautics, Technical Memorandums No. 524, August 1, 1929, Washington, August 1929, pp. 26, ills., tabls. From 1928 Yearbook of the Deutsche Versuchsanstalt für Luftfahrt.

Brewer, R. A. Improved cast iron cylinder for air-cooled engines. Inco, Vol. 8, No. 3, 1928, pp. 15, 21, ill.

Beidgman, Leonaed. See Grosvenor, Edward Arthur, and Leonard Bridgman: International aircraft markings ; naval-military and civil.

Beiggs, Lyman James, and H. L. Dryden. Aerodynamic characteristics of twenty-four airfoils at high speeds.

National Advisory Committee for Aeronautics, Report No. 319, Oct. 16, 1929, Washington, United States Government Printing Office, 1929, pp. 32, ills., diagrs., tabls.

Beiggs, Lyman James. Aeronautics research at the National Bureau of Standards.

Aero Digest, Vol. 14, Nos. 3-4 (Mar.-Apr. 1929), New York, pp. 47-49, 52-53, 290, ill.

Bringhurst, H. M. How we sell structural steel for bangars.

Airway Age, Vol. 10, No. 7 (July 1929), New York, pp. 1014-1016, ill.

Brigham, R. B. The airship R. 100.

Flight, Vol. 21, No. 52 (Dec. 27, 1929), London, pp. 1352-1354, ill.

Beion, M. Méthode et appareils simples de navigation à l'estime.

L'Aéronautique, lime année, No. 121 (juin 1929), Paris, pp. 183-185, ill.

Bristol. The Bristol "Bulldog" (British). A single-seat all-steel fighter.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 103, Oct. 11, 1929, Washington, October 1929, pp. 15, ills.

- The Bristol "Jupiter " family—(V).

Flight, Vol. 21, No. 11 (Mar. 14, 1929), London, pp. 209-213, diagr.

- See Brueton, B. F.: Bristol—The air port of the west.

- See Haslam, J. A. G.: Wool-tufts. A direct method of discriminating

between steady and turbulent airflow over the wing surfaces of aircraft in flight; applied to explore the region of effect of the slot on a Bristol fighter wing.

- See Jennings, W. G.: Full scale tests of a .standard Bristol fighter aeroplane fitted with " Pilot planes " at the wing tips.

- See Jones, B. Melvill, and C. E. Maitland: Instrumental records of the

lateral motions of a stalled Bristol fighter aeroplane.

- See Wright, K. V.: Experiments on the spinning of a Bristol fighter

aeroplane.

- See Wright, K. V.: Full scale experiments with a Bristol fighter fitted

with slots and flaps and slot and aileron control.

Bristol, England. Bristol's municipal aerodrome.

Flight, Vol. 21, No. 24 (June 13, 1929), London, p. 487.

British Aeronautical Research Committee. See Diehl, Walter S.: Joint report on standardization tests on N. P. L. R. A. F. 15 airfoil model.

British Air Estimates. The air estimates.

Flight, Vol. 21, No. 10 (Mar. 7, 1929), London, pp. 184-187.

Britt, G. Where are we flying? >

Nation, Vol. 129 (Aug. 14, 1929), New York, pp. 162-163.

Brombacher, W. G., and F. Cordero. Pressure element of constant logarithmic stiffness for temperature compensated altimeter.

National Advisory Committee for Aeronautics, Report No. 310, May 29, 1929, Washington, United States Government Printing Office, 1929, pp. 13, ills., diagrs.

Brooks, Donald B. Correcting engine tests for humidity.

National Advisory Committee for Aeronautics, Technical Notes No. 309, June 21, 1929, pp. 12, diagrs.

- Horsepower correction for atmospheric humidity. *

Journ. Soc. Automotive Engineers, Vol. 25, No. 3 (Sept. 1929), New York, pp. 277-283, ill.

Brooks Field. See McDarment, Corley: Letters of a famous flying class. A story of great human interest about Lindbergh's friends at Brooks Field.

Brown, George Granger. See Carr, Marvin S., and George Granger Brown: Gaseous explosions. VII—Effect of tetraethyl lead on rate of rise of pressure.

- See Souders, Mott, jr., and George Granger Brown: Gaseous explosions.

VIII—Effect of tetraethyl lead, hot surfaces, and spark ignition on flame and pressure propagation.

Brown, Henry J. Los Angeles to Cleveland non-stop.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 60, 260, ill.

Beucker, H. Airplane and the average man.

Review of Reviews, Vol. 80 (July 1929), New York, pp. 54-61, ill.

- Why not go by air?

Review of Reviews, Vol. 80 (Oct. 1929), New York, pp. 58-63, ill., map.

Bruemmer, A. V. The engines of the " Graf Zeppelin."

Engineering Progress, Vol. 10, No. 3 (March 1929), Berlin, pp. 57-59, ill.

Brueton, B. F. Bristol—The air port of the west.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1058-1062, ill., map.

Brummitt, W. B. A-B-C of airports.

Magazine of Business, Vol. 55 (Mar. 1929), Chicago, pp. 279-281, ill.

Bruner, S. G., et P. Massenet. Rayon d'action des avions multimoteurs.

L'Aéronautique (L'Aérotechnique, 7e année, No. 77 et 78), lime année, No. 121 (juin 1929) Paris, pp. 203-205, diagrs.

Bruner, S.-G. Sur le choix de la grandeur et de la vitesse des avions commerciaux.

L'Aérophile, 37e année, Nos. 3-4 (ler-15 fév., 1929), Paris, pp. 49-54, diagrs., tabls.

Bruns, Walther. Professor Berson und die " Aeroarctic."

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 14. u. 15. Heft (31 Juli 1929), München, pp. 360-362.

Bryant, L. W., and A. S. Halliday. Measurement of lateral derivatives on the whirling arm.

Aer. Res. Comm., Rep. Mem., No. 1249, (Ae. 400), March 1929, London, 1929, pp. 6, ills., diagrs.

Bryant, L. W., E. Ower, A. S. Halliday, and V. M. Falkner. On the convection of heat from the surface of an aerofoil in a wind current.

Aeronautics. Techn. Rep. Aer. Comm. 1928-1929, Vol. 2, London, 1929, pp. 1069-1092, ills., diagrs., tabls. (R. & M. No. 1163).

Buckles, See Hoffmann, Frederich: Entwicklung eines Anschnallgurtes von einheitlichem Muster.

Buckling tests. See Schroeder, August : Buckling tests of light-metal tubes.

Budget. See France : Le budget de l'aéronautique.

BuDiG, Friedrich. Au sujet de l'action sur une voilure d'un vent latéral une application à la propulsion des bateaux.

L'Aérophile, 37e année, Nos. 5-6 (ler-15 mars 1929), Paris, pp. 67-68, ill.

Buhl. Buhl Standard OA-6 Airsedan.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 90, ill., diagr.

Bull, H., and Lawrence Johnson. Welding of stainless materials.

National Advisory Committee for Aeronautics, Technical Memorandums No. 532, Sept. 30, 1929, Washington, September 1929, pp. 37, ills. From Industrial Gases, March and June 1928.

Bullard, J. E., and Avery E. Lord. Making the airport pay for itself.

Aviation, Vol. 27, Nos. 19, 21 (Nov. 9, 23, 1929), New York, pp. 932-935; 1023-1026, ill.

Bulldog. See Bristol : The Bristol " Bulldog " (British). A single-seat all-steel fighter.

Bureau, R. Electricité atmosphérique.—Sur la variation diurne des parasites atmosphériques; moyennes mensuelles, variation annuelle, influences météorologiques.

C. R. Acad. Sei., T. 189, No. 27 (30. déc. 1929), Paris, pp. 1293-1295, diagrs.

Bubeatj of Standards. Aeronautic radio research.

Domestic Air News, Serial Nos. 45, 48, 50-54, Jan. 31, March 15, April 15-June 15, 1929, Washington, pp. 12-14, 22-23, 12-13, 24, 17, 21, 14. Department of Commerce, Aeronautics branch.

- Aircraft radio development.

Air Commerce Bulletin, Vol. 1, No. 4 (Aug. 15, 1929), Washington, pp. 5-11. Department of Commerce, Aeronautics branch.

- See Briggs, Lyman James : Aeronautic research at the National Bureau of

Standards.

- See Radio : Aeronautic radio research, Bureau of Standards.

Bureau Veritas. Le règlement du Bureau Veritas pour 1929.

L'Aéronautique (L'Aërotechnique, 7e année, No. 75), lime année, No. 118 (mars 1929), Paris,'p. 84.

Bürge, C. G. The air annual of the British Empire.

London, Gale and Polden, 1929, li+734 pp., ill.

Burgess, C. P. Flight tests on U. S. S. "Los Angeles." Part II—Strett and strength determination.

National Advisory Committee for Aeronautics, Report No. 325, Nov. 22, 1929 [Washington], pp. 16, ills., diagrs., tabls.

- The torsional strength of wings.

National Advisory Committee for Aeronautics, Report No. 329, Dec. 18, 1929 [Washington], pp. 14, ill., diagrs., tabls.

- See De France, Smith J., and C. P. Burgess : Speed and deceleration trials

of U. S. S. " Los Angeles."

Burkett, E. F. Mapping 13,000 square miles of Alaska.

Aviation, Vol. 27, No. 25 (Dec. 21, 1929), New York, pp. 1210-1213, ill.

Burnelli. Burnetii monoplane.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 94, 96, ill., diagr. Flight, Vol. 21, No. 10 (Mar. 7, 1929), London, pp. 179-180, ill., diagr.

- An original design (monoplane).

Flight, Vol. 21, No. 13 (Mar. 28, 1929), London, pp. 254-255, ill.

- Le petit monoplan bimoteur Burnelli.

L'Aérophile, 37e année, Nos. 21-22 (ler-15 nov. 1929), Paris, p. 334, ill.

Burney, Charles Dennistoun. The world, the air and the future. London, Alfred A. Knopf, 1929, pp. XXIV+356, ill.

Burton, Walter E. The air-rail station at Port Columbus.

Aviation, Vol. 27, No. 18 (Nov. 2, 1929), New York, pp. 889-891, ill.

- Air Travel ticket office.

Aviation, Vol. 27, No. 5 (Aug. 3, 1929), New York, p. 265, ill.

- Cleveland prepares for the 1929 National Air Races.

Aviation, Vol. 26, No. 25 (June 22, 1929), New York, pp. 2190-2193, ill.

- The Goodyear-Zeppelin dock at Akron, Ohio.

Aviation, Vol. 27, No. 25 (Dec. 21, 1929), New York, pp. 1214-1218, ill., diagr.

- The new Zeppelin plant at Akron airport.

Aviation, Vol. 26, No. 13 (March 30, 1929) New York, pp. 956-957, ill.

- Production methods at the Great Lakes Aircraft plant.

Aviation, Vol. 27, No. 20 (Nov. 16, 1929), New York, pp. 970-973, ill.

Burton, Walter E. Zeppelin's American home; two world's largest Zeppelins for our navy will be built in hangar at Akron, O.

Scient. Amer., Vol. 141 (Sept. 1929), New York, pp. 230-233, ill. Literary Digest, Vol. 102 (Sept. 14, 1929), New York, pp. 35-36.

Burtt, Robert M. Kansas City becomes air-minded.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, p. 17.

Busse, Rudolf. Luftrecht einschliesslich Luftverkehrsgesetz und Pariser Luftverkehrsabkommen.

Berlin und Leipzig, Verlag Walter de Gruyter & Co., 1928.

Butler. The Butler biplane.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, p. 72 ill.

Byers, Horace R. Operation of an aviation weather bureau.

Aviation, Vol. 26, No. 5 (Feb. 2, 1929), New York, pp. 322-323, ill.

Byrd, Richard Evelyn. See French, Joseph Lewis: The big aviation book for boys, introduction by Commander Richard E. Byrd.

- See Lane, D. R.; Radio on the Byrd and Wilkins planes.

- See Murphy, Charles J. V.: Struggle; the life and exploits of Commander

Richard E. Byrd.

C

Cabinaire. Cabinaire biplane.

Aero Digest, Vol. 14, No. 2 (Feb. 1929). New York, p. 102, ill., diagr. Aviation, Vol. 26, No. 11 (Mar. 16, 1929), New York, pp. 800-801, ill., diagr.

Cabins. Interior of cabin airplanes.

Aero Digest, Vol. 14, Nos. 2-5 (Feb.-May 1929), New York, pp. 46-48, 72-74, 82-84, 68-70, 258, ill., diagr.

- See Noise: Decreasing noise in airplane cabins.

Cables. Installing non-flexible cables.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, p. 154, ill.

- See Ogawa, Taitiro, and Sigetake Suzuki: A new index to control cable

endurance.

Cacciapuott, Giovanni. II Convalescenziario di Nisida.

Riv. Aeron., Anno 5, N. 5 (Mag. 1929), Roma, pp. 288-292.

Cairns. Cairns metal monoplane.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 108, ill.

Caistor, England. See Moir, J. R.: Ancient history from aloft; archeological discovery, Caistor, England, by aerial photography.

California Aeronautic Safety Committee. The work of the California Aeronautic Safety Committee.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, p. 182.

California Institute of Technology. See Lewis. William A: Motor control for wind tunnel. Precision speed regulation for the wind tunnel motor at California Institute of Technology.

Callen, C. L. There's no stopping a woman with courage like this! interview with P. Omile.

American Magazine, Vol. 108 (Aug. 1929), Springfield, Ohio, pp. 28-29, ill.

Callison, A. F. Subways and elevators for modern airports.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, p. 452, ill.

Calot, Charles. Les transports commerciaux; manuel pratique, chemins de fer—navigation—automobilisme—aviation ; préface de R. Bloch. * * * Paris, Delagrave, 1929, p. 522, ill., maps, tabls., diagrs.

Calshot. The week at Calshot.

The Aeroplane, Vol. 37, No. 10 (Sept. 4, 1929), London, pp. 616-630, ill.

Caltjwaert, E. C. Aeronautical welding schools.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, p. 74, ill.

Camann, Th. Das Flugwesen im In- und Ausland.

Berlin, Verlag Klasing & Co., 1928, pp. 250.

Cambridge. An aerodrome for Cambridge.

Flight, Vol. 21, No. 11 (Mar. 14, 1929), London, p. 216, map.

Camden. Central airport, Camden, N. J.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 118, 120, ill., diagr.

Caminez, Harold. Present status of European airplane engines.

Airway Age, Vol. 10, Nos. 7-8 (July-Aug. 1929), New York, pp. 983-986, 1225-1230, ill., diagr.

- Visite d'un ingénieur américain à nos usines de moteurs.

L'Aéronautique, lime année, No. 118 (mars 1929), Paris, pp. 75-76, ill.

Campbell, E. How the ship is designed.

Pop. Mech., Vol. 52 (Nov. 1929), Chicago, pp. 778-782, ill.

Campbell, Hayden S. Refueling from the ground.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, pp. 15, 18, ill.

Canada. Air progress in Canada.

Flight, Vol. 21, No. 8 (Feb. 21, 1929), London, p. 145.

- Canadian air programme for 1929.

Flight, Vol. 21, No. 32 (Aug. 8, 1929), London, p. 854.

- The progress of civil aviation in Canada.

Flight, Vol. 21, No. 13 (Mar. 28, 1929), London, p. 257.

- Report on civil aviation and civil government air operations for the year

1928.

Dominion of Canada, Department of National Defence, Ottawa, 1929, pp. 118, ills., maps.

- See Faurote, Fay Leon : A survey of Canadian commercial aviation.

- See Hanson, Earl: Canadian Pacific express experiments with air-rail

service.

- See Hanson, Earl : Cold Lake is serviced by airplanes. An example of

how Canadian aviation opened the north.

- See Hanson, Earl : Special methods of Canadian flyers.

- See Hume, D. C. M. : Some notes on the technical problems of Canadian

aviation.

- See MacBrien, J. H. : Canada's aviation league. It is to the Dominion

what the N. A. A. is to the U. S. A.

- See Montagnes, James: Canadian aviation progress.

- See Montagnes, James : Charting Canada's wilderness from the air.

- See Montagnes, James : Eyes from the air ; Canada's outstanding place in

the air surveys.

Canada. See Sandwell, Arnold H. : Planes fight fire in Canada.

- See Sandwell, Arnold H. : Western Canada airways succeeds against odds.

- See Somerville, H. A. : Flying clubs in Canada.

Canard. See Merrill, Albert: The Penaud versus the Canard types.

Cantilever. The Cantilever monoplane again.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 26 (Dec. 25, 1929), London, p. 1432.

- See Gabrielli, Giuseppe: Torsional rigidity of cantilever wings with

constant spar and rib sections.

- See Stieger, H. J. : Cantilever wings for modern aircraft. Some aspects

of cantilever wing construction with special reference to weight and torsional stiffness.

Cantoni, Alberto. Il volo nella nebbia a le linee aeree.

Riv. Aeron., Anno. 5, N. 12 (Die. 1929), Roma, pp. 433-453, ill., diagrs.

Capazza, Louis. See La Vaulx : Louis Capazza.

Cape-Cairo. On the Cape-Cairo air line.

The Aeroplane, Vol. 36, No. 12 (Mar. 20, 1929), London, pp. 425-430.

Capetti, Antonio. Effect of intake pipe on the volumetric efficiency of an internal combustion engine.

National Advisory Committee* for Aeronautics, Technical Memorandums No. 501, Feb. 28, 1929, Washington, Feb. 1929, pp. 22, ills., diagrs., tabls. From Annali della R. Scuola d'Ingegneria di Padova, Dec. 1927.

Caple, A. N. Cirrus Mark III.

Journ. Roy. Aer. Soc, Vol. 33, No. 221 (May 1929), London, pp. 386-391, ill.

Capon, R. S. Part I.—A method of calculating suitable airscrew characteristics to meet given conditions. The resulting airscrew performance. Part II.—A comparison of the observed change of performance consequent on a change of airscrew and the change predicted by the methods of Part I. Aer. Res. Comm., Rep. Mem., No. 1254 (Ae. 403), June 1929, London, 1929, pp. 44, diagrs., tabls.

Caproni. The Caproni " C. A. 97 " Colonial.

Flight, Vol. 21, No. 35 (Aug. 29, 1929), London, pp. 927-928, ill.

Caracciolo, Mario. La scuola di aviazione de Aviano (1911).

Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 269-278, ill.

Caeafoli, Elie. Influence des ailerons sur les propriétés aérodynamiques des surfaces sustentatrices.

Paris, l'Aéro-Club de France.

- See Toussaint, R., and E. Carafoli : Aerodynamic characteristics of thin

empirical profiles and their application to the tail surfaces and ailerons of airplanes.

Carburation. See Penn, R. J. : Aero engine problems in flight with particular reference to carburation.

Carburetors. See Graf, S. H., and G. W. Gleeson: Adjustment of automotive carburetors for economy.

- See Hardy, P. : Le réchauffage des carburateurs.

- See Sauter, J. : Investigation of atomization in carburetors.

-- See Smith, Karl F. : Carburetor attachment purifies intake air.

Carll, George S., jr. The pressing problem of promotion.

U. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. C, pp. 80-82.

Carpenter, Ford A. Weather and air transport.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 51-52, 276, 278, ill., chart.

Carr, C. B. Air route radio services in Great Britain.

Aviation, Vol. 27, No. 17 (Oct. 26, 1929), New York, pp. 834-838, ill.

Carr, Marvin S., and George Granger Brown. Gaseous explosions. VII— Effect of tetraethyl lead on rate of rise of pressure.

Ind. Eng. Chem., Vol. 21, No. 11 (Nov. 1929), Washington, D. C, pp. 10711078, diagrs., tables.

Carriers. Buques de guerra ingleses en Barcelona.

Ibérica, Año 17, Num. 821 (29 marzo 1930), Barcelona, pp. 193, 195, ill.

- See Parkes, Oscar: Japan's new navy. [Aircraft carriers "Akagi" and

" Kaga."l

- See Rock, George H.: The design of airplane carriers.

Carroll, Thomas, and William H. McAvoy. The formation of ice upon airplanes in flight.

National Advisory Committee for Aeronautics, Technical Notes No. 313, Aug. 20, 1929, Washington, August 1929, pp. 13, ills.

Carroll, Thomas. Load factors. A pléa for common sense in design.

Aeornautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, p. 29.

- More and better pilots.

Aeronautic Review, Vol. 7, No. 3 (March 1929), Washington, pp. 6, 7, 22, ill.

Carroll, Thomas, and William H. McAvoy. Spiral tendency in blind flying.

National Advisory Committee for Aeronautics, Technical Notes No. 314, Aug. 27, 1929, Washington, August 1929, pp. 5 (26), ills., diagrs.

Carroll, Thomas, and Smith J. DeFrance. The use of wheel brakes on airplanes.

National Advisory Committee for Aeronautics, Technical Notes No. 311, July 30, 1929, Washington, July 1929, pp. 9, ills., diagrs.

Carroll, Thomas. Why the spiii? A suggestion from an expert to outlaw this maneuver except in training.

Aeronautic Review, Vol. 7, No. 6 (June 1929), Washington, pp. 22, 39, ill.

Carter, B. C. The machinery installation of airship R-101. (Further torsio-graph observations on Tornado III engine since T. R. Cave-Browne-Cave paper.)

Journ, Roy. Aer. Soc. Vol. 33, No. 226 (Oct. 1929), London, pp. 1016-1020, ills., diagrs.

Carter, Clifton Carroll. See Monteith, Charles Norton: Simple aerodynamies and the airplane . . . with supplementary chapters on materials and construction, equipment, navigation, and the military airplane, by Captain E. E. Aldrin and technical specialists of the air corps, U. S. Army.

Cartes, W. G. Air-cooled high-speed seaplanes.

Aircraft Engineer suppl. Flight, Vol. 21, No. 26 (June 27, 1929), London, pp. 522c-522e, diagr.

- High-speed seaplanes.

Aircraft Engineer suppl. Flight, Vol. 21, No. 9 (Feb. 28, 1929), London, pp. 162a-162d, diagr.

Carver, Peggy. A university of the air. Boeing school of aeronautics will formally open at Oakland Airport September 15.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, pp. 41, 65, port.

Casamor, Luis Santoma. Aeropuertos.

Ibérica, Año 16, Tomo Io, Vol. 31, No. 769 (16 marzo 1929), Barcelona, pp. 161, 165-171, ill.

- Aeropuertos. IV Pistas.

Ibérica, Año 16, Núm. 805 (7 die. 1929), Barcelona, pp. 346-349, ill.

Caspari, Walter, und M. Lehl. Bedeutung der Normen für die Luftfahrt.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 11. Heft (14. Juni 1929), München, pp. 273-274.

Caspari, Walter,. Internationale Normung.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 24. Heft (28. Dez. 1929), München, pp. 653-654.

- Sicherheit und Normung im Flugzeugbau.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 5. Heft (14. März 1929), München, p. 123.

- Zergliederung und statische Erfassung von Flugzeugunfallen.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München [1929], pp. 340-344, diagrs.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 16. Heft (28. Aug. 1929), München, pp. 423-427, diagrs.

Cassiani-Ingoni, Giovanni Battista. I problemi scientiflei dell'aeronautica. Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 553-556.

Cassinis, Gino. L'aerofotogrammetria ali'esposizione internazionale di aeronáutica di Berlino e la riunione della Deutsche Gesellschaft für Photo-grammetrie.

(Pubbl. della R. Scuola d'ingegneria di Pisa. N. 103). Pisa, Pacini Mariotti, 1929.

Castle, Benjamin F. The aircraft and automotive industries. Wherein is their comparison justified?

Airway Age, Vol. 10, No. 9 (Sept. 1929), New York, pp. 1376-1378.

Castner, F. Pneumatic braking and steering device for landing airplanes.

Engineering Progress, Vol. 10, No. 7 (July 1929), Berlin, pp. 183-184, ill.

Castor oil. See Owen, John T. : Jorr process castor oil lubricant.

Catapults. L'accélération des carriers transatlantiques par la catapulte.

L'Aéronautique, lime année, No. 124 (sept. 1929), Paris, pp. 313-314, ill.

- Lancement d'un hydravion à flotteurs par catapulte.

L'Aéronautique, lime année, No. 126 (nov. 1929), Paris, pp. 391-392, ill.

- See Bremen: Das Heinkel-Flugzeugkatapult auf dem neuen Riesenschnelldampfer " Bremen " des Norddeutschen Lloyd.

- See Heinkel : The Heinkel catapult on the S. S. " Bremen."

- See Splanemann, B. : Das Flugzeugkatapult auf dem Lloyddampfer

" Bremen."

Caterpillar Club. See Glassman, Don : Facts and fables. The anatomy and histology of caterpillars.

Cave-Browne-Cave, H. M. The cruise of the Royal Air Force far east flight. Flight, Vol. 21, No. 10 (Mar. 7, 1929), London, pp. 197-199. Journ. Roy. Acr. Soc, Vol. 33, No. 228 (July 1!>29), London, pp. 542-572.

Cave-Browne-Cave, T. R. The machinery installation of airship R. 101.

Journ. Roy. Aer. Soc, Vol. 33, No. 219 (Mar. 1929), London, pp. 175-206, ill.

-See Carter, B. C. : The machinery installation of airship R. 101.

Celloni, Achille. Lo schermaggio elettrico dei motori d'aviazione.

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 503-508, ill.

Chabert, Raymond. See Hirschauer, L., et Ch. Dollfus: L'année aéronautique 192&-1929.

Channel flight. See M. L.: Le vingtième anniversaire de la traversée de la Manche.

Channel walls. See Fage, A. : On the two-dimensional flow past a body of symmetrical cross section mounted in a channel of finite breadth.

Charlet, Robert. Ce que fut le premier Congrès International de l'Aviation Sanitaire.

L'Aérophile, 37e année, Nos. 11-12 (ler-15 juin 1929), Paris, p. 170, ill.

Charts. List of air navigation charts. October 15, 1929.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 10, United States Government Printing Office, 1929, pp. 7, maps.

- New Hydrographie Office flying charts.

Air Commerce Bulletin, Vol. 1, No. 6 (Sept. 15, 1929), Washington, p. 10. Department of Commerce, Aeronautics branch.

-See Weems, P. V. H. : Aerial plotting charts.

Chase, S. Two-hour war.

New Republic, Vol. 58 (May 28, 1929), New York, pp. 325-327.

Chatterjee, G. Balloons for upper air work.

Nature, Vol. 134, No. 3134 (Nov. 23, 1929), London, pp. 793-794.

- An upper air temperature indicator for use with pilot balloon.

Gerlands Beiträge zur Geophysik, Vol. 24, 1929, Leipzig, pp. 343-352. (Upper Air Observatory Agra, India.)

Chemical engineering. See Walker, George E. : How chemical engineering has improved aircraft.

Cheney. See Ent, Uzal G. : Lieutenant Ent to receive the Cheney award.

Cheney, Washington. See Lighting : Street lighting form airway marker.

Chicago. The air show at Chicago.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, pp. 38-42, 174, ill.

- The Chicago international aeronautical exposition.

Flight, Vol. 21, No. 2 (Jan. 10, 1929), London, pp. 21-23, ill.

- Chicago's municipal airport.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 38-41, ill.

--Seventy-eight airplanes exhibited at Chicago.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 66-94, ill.

- See Barnwell, F. S. : Notes on the aeronautical show held in Chicago,

U. S. A., December 1st to 9th, 1928.

- See Klemin, Alexander: Learning to use our wings. The Chicago air

show.

Chicanot, E. L. The aeroplane in the fur industry.

Flight, Vol. 21, No. 37 (Sept. 13, 1929), London, pp. 1019-1022, ill.

China. Airship transportation in China.

Domestic Air News, Serial No. 49, March 31, 1929, Washington, p. 29. Department of Commerce, Aeronautics branch.

- China as a market.

Flight, Vol. 21, No. 1 (Jan. 3, 1929), London, p. 2.

- Flying in China.

The Aeroplane, Vol. 36, No. 20 (May 15, 1929), London, p. 812, ill.

—■— See Baskey, Earl F. : The American airplane market in China.

- See Fuetterer, E. O. : Luftfahrt in China.

- See White, Thomas D. : The first American commercial airplane in

China.

- See White, Thomas D. : From wheelbarrow to airplane at one leap.

Chord. See Gravity: Determination of center of gravity and mean aerodynamic chord.

Chrisler, Vivian Leroy. Soundproofing of airplane cabins.

Aviation, Vol. 27, No. 21 (Nov. 23, 1929), New York, pp. 1021-1022, ill.

Chrisler, Vivian Leroy, and W. F. Snyder. Soundproofing of airplane cabins.

U..S. Bureau of Standards, Journal of Research, Vol. 2, No. 5 (May, 1929), Washington, pp. 897-908, tabls., diagrs.

Christian, M. Neue Flugmotoren auf der Olympia-Schau 1929.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 17. Heft (14. Sept. 1929), München, pp. 443-447, ill.

Christmas. A giant American monoplane.

Flight, Vol. 21, No. 50 (Dec. 13, 1929), London, pp. 1298-1301, diagr.

Christmas, W. W. See Stearns, M. M. : Flying wing ; story of W. W. Christmas.

Christopher,, Luke. My first commercial test job. A test pilot's life is much more secure and enjoyable now than it was then,, perhaps.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, pp. 20-21, ills.

- Schory's successor appointed. Luke Christopher takes contest committee

duty.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, p. 24, port.

b- Upside down and tail first: Being one of the experiences of a test pilot

who developed the greatest acceleration ever recorded on an airplane.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 17-19, 57, ill.

Cierva. See Hosking, H. : Improved Cierva autogiro tested in flight by inventor.

- See Westing, Ralph: Autogiroing in America. How and why Harold

F. Pitcairn regards the child of Cierva.

Cierva, Juan de la. The autogiro.

Journ. Soc. Automotive Eugineers, Vol. 25, No. 3 (Sept. 1929), New York, pp. 204-206, ill.

Cierva, Juan de la, and D. F. Rose. From glider to autogiro.

North American Review, Vol. 228 (Nov. 1929), New York, pp. 530-535.

Cierva, Juan de la. New way to fly.

Sat. Even. Post, Vol. 202 (Nov. 2, 1929), Philadelphia, pp. 20-21, 111.

- Le nouvel autogire la Cierva 80 CV.

L'Aérophile, 37e année, Nos. 21-22 (ler-15 nov. 1929), Paris, pp. 339-340. ill.

Cierva, Juan de la. Theory of the Autogiro.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 124-126, ill.

Cirrus. The Cirrus Hermes engine.

The Aeroplane, Vol. 36, No. 17 (Apr. 24, 1929), London, pp. 667-670, ill.

- Cirrus Mark III engine.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 108, ill.

--Navy to test Cirrus engines. Demands on output being made by Great

Lakes company.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, p. 33, ill.

- A new air-cooled "in-line" aero engine (Hermes).

Flight, Vol. 21, No. 17 (Apr. 25, 1929), London, pp. 333-335, ill., chart.

- See Caple, A. n.: Cirrus Mark III.

- See Inspection: Inspection methods in the American Cirrus engine plant.

City of Rome. See Accidents: The " City of Rome " disaster.

Civil aeronautics. Civil aeronautics in statistics.

Domestic Air News, Serial No. 50, 54, April 15, June 15, 1929, Washington, pp. 5-6, 7-8. Department of Commerce, Aeronautics branch.

- The distribution of civil aircraft.

Flight, Vol. 21, No. 48 (Nov. 29, 1929), London, p. 1263, diagr.*

- See Brandenberg: The status of German civil aeronautics.

Civil aviation. Flying and maintenance from the owner's point of view.

Flight, Vol. 21, Nos. 49-50 (Dec. 6-13, 1929), London, pp. 1284-1286, 13061308.

- The private owner's point of view.

Tbe Aeroplane, Vol. 37, No. 23 (Dec. 4, 1929), London, pp. 1279-1284.

- Report on the progress of civil aviation issued by the Air Ministry, Directorate of Civil Aviation.

London, H. M. "Stationery Office, 1929.

- See Klemin Alexander: American passenger air transport—II.

--See MacCracken, William P.: Science in relation to regulating and promoting civil aviation.

- See Monteith, Charles n.: Aircraft for passenger transport.

Civilian Coupe. The Civilian Coupe.

Flight, Vol. 21, No. 27 (July 4, 1929), London, p. 548, ill., diagr.

Clahoun, Guy K. Altimeters and the Paulin system level flight indicator.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 647-651, ill.

Clancy, C. S. Aviation's patron saint.

Scient. Amer., Vol. 141 (Oct. 1929), New York, pp. 283-286, ill.

Clark, K. W., and W. G. Jennings. Full scale determination of the motion of an Avro aeroplane when stalled.

Aer. Res. Comm., Rep. Mem., No. 1263 (Ae 412), April 1929, London, 1929, pp. 6, diagrs.

Clark, K. W. See Bradfield, F. B., and K. W. Clark: Wind tunnel experiments on the design of an automatic slot for R. A. F. 28 section, and on interconnection with ailerons.

Clark, K. W. See Jones, E. T., and K. W. Clark : Wind tunnel tests for design of an automatic slot for Avro 504. n.

- See Bradfield, F. B., and K. W. Clark: Wind tunnel tests of aerofoils

with pilot planes.

Clark, R. K. Flying from Sacramento to Reno.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 71, 354, 356, ill.

Clark, S. C, and W. L. Gastob. The welding of stamped and formed airplane parts.

Metal Stampings, Vol. 2, No. 9 (Sept. 1929). Pittsburg, pp. 709-712, ill.

Clark, Virginius Evans. An approximate expression for airfoil profile drag. Aviation, Vol. 27, No. 12 (Sept. 21, 1929), New York, pp. 634-635.

- Historical development of the American airplane.

Mech. Eng., Vol. 51, No. 2 (Feb. 1929), New York, pp. 103-108, ill.

Clasps. See Hoffmann, Friedrich : Entwicklung eines Anschnallgurtes von einheitlichem Muster.

Classification. Classification of aircraft.

The Aeroplane, Vol. 37, No. 19 (Nov. 6, 1929), London, p. 1131.

Clayton, H. Helm. World weather records. Errata. Collected by Dr. Felix Exner, Dr. G. C. Simpson, Sir Gilbert Walker, H. Helm Clayton, and Robert C. Mossman.

To accompany Smithsonian Miscellaneous Collections Volume 79 (Whole volume), Publication 3019, Washington, M'ay 29, 1929, pp. 28.

Cleary, Charles J. Parachute fabrics.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1766-1768, ill.

Clephane, Douglas W. Air navigation maps.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 52-53, 212, ill., diagr.

- Factory cooperation boosts distributor sales.

Aviation, Vol. 27, No. 18 (Nov. 2, 1929), New York, pp. 887-888, ill.

Clerget. Le moteur Clerget 100 HP à huile lourde.

L'Aéronautique (L'Aérotechnique, 7e année, No. 83), lime année, No. 126 (nov. 1929), Paris, pp. 369-370, ill.

Cleveland. Airport men meet at Cleveland.

Airway Age, Vol. 10, No. 6 (June 1929), New York, pp. 833-834.

- Cleveland improves airport during past year.

Airway Age, Vol. 10, No. 8 (Aug. 1929), New York, pp. 1198-1201, ill.

- The exposition and meetings at Cleveland.

Airway Age, Vol. 10, No. 10 (Oct. 1929), New York, pp. 1629-1632.

- See Burton, Walter E. : Cleveland prepares for the 1929 National Air

Races.

-- See Logan, Floyd J. : The 1929 National Air Races. Summary and text

of contests and events to be featured at Cleveland.

- See National Air Races : Complete official results, National Air Races,

Cleveland, Ohio, August 24-September 2. Held under the sanction of the N. A. A.

■=- See Neville, Leslie E. : Inside the exposition building at Cleveland.

Cleveland, R. M. Is the airplane Diesel practical?

Scient. Amer., Vol. 141 (Sept. 1929), New York, pp. 222-224, ill.

--What is the future of aviation ?

Scient. Amer., Vol. 141 (Oct. 1929), New York, pp. 313-315, ill.

Cleveland air races. See Neely, Frederick R.: The public demand. A citizen and income-taxpayer dares to tell the Army and Navy what he thinks about the 1929 Cleveland ait races.

Clevengee, Cloyd P. The greatest of all sports.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 100, ill.

Clouds. See Eredia, Filippo: Nuovi contributi alio studio delle nubi per la navigazione aerea.

- See McAdie, Alexander: Clouds and fog. Something about which every

young aviator should know.

Clubs. Organization of private flying clubs.

Seient. Amer., Vol. 141 (Aug. 1929), New York, pp. 165-166.

Cluett, Jack. By dog team and sledge to Penn station.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 27, 54, ill.

- Zepping the Atlantic. The Graf's recent flight brings an old Zep-traveller

out of hiding with a queer tale.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, pp. 29, 53, ill.

Coal. See Petrol: Petrol from coal.

Coast Guard. See Hall, Norman B.: The Coast Guard in aeronautics.

- See West, A. G.: The air patrol of the Coast Guard.

Cobham, Alan. Address on " Selection of airport sites."

Flight, Vol. 21, No. 45 (Nov. 8, 1929), London, pp. 1196-1197.

Cobham, Alan J. The selection of a municipal aerodrome.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1039-1042, ill.

Codd, L. A. N. A. A. invited to ordnance display. Entire membership to be guests at eleventh annual meeting of Army Ordnance Association at Aberdeen, Md., Proving Ground, October 10.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, pp. 37, 48, ports.

Codel, Martin. Airway radio progress.

Aviation, Vol. 27, No. 20 (Nov. 16, 1929), New York, pp. 979-980, maps.

- Radio flying. Government develops plans to meet requirements "of

aviation.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 38-39, 59, port.

Coldewey, H. Der Magnetkompass als aeronautisches Instrument.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 4. Heft (28. Feb. 1929), München, pp. 94-96.

Collier trophy. Collier trophy awarded Department of Commerce.

Domestic Air News, Serial No. 45, Jan. 31, 1929, Washington, p. 16. Department of Commerce, Aeronautics branch.'

- Collier trophy awarded to Aeronautics branch of the Department of

Commerce.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, p. 9, ill.

Collins, Archie Frederick. Aviation and all about it; an extremely simple and thoroughly practical exposition of all the various branches of. aviation.

New York, London, D. Appleton and Company, 1929, pp. xvi, 260, ill., maps, diagrs.

Collins', Francis Arnold. The boy's book of model aeroplanes, illustrated with photographs and diagrams.

New York, London, The Century Co., 1929, pp. vii, 262, ill., diagrs.

Collins, F. L. Since Lindbergh flew the Atlantic.

Woman's Home Companion, Vol. 56 (May 1929), Springfield, Ohio, pp. 20-21, ill.

Colombia-Ecuador. The Colombia-Ecuador airway.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 34-37, ill.

Columbia. Columbia Triad Amphibion.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 98, 100, ill., diagr.

Columbus. See Simpson, K. H. : Columbus prepares for transcontinental air lines.

Colvin, Charles H. See Wright, Milton : Builders of the aviation industry.

Comet. A new " Comet " appears. Another tool-machine builder enters the . engine field.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, p. 47, ill.

Commebce, Department of. See United States Department of Commerce.

Commerce regulations. Air commerce regulations. Effective December 31, 1926. Effective as amended September 1, 1929.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 7, United States Government Printing Office, 1929, pp. 30.

- Air commerce regulations. Effective December 31, 1926. Star (*) indicates sections amended and effective March 22, 1927.

United States of America, Department of Commerce, Aeronautics branch, United States Government Printing Office, Washington, 1927, pp. 49. (Mimeographed sheet amending Sec. 41.)

Commercial aeronautics. Aboard the sky diner.

Pop. Mech., Vol. 51 (June 1929), Chicago, pp. 892-896, ill., map.

- The aeronautic situation to-day.

Air Commerce Bulletin, Vol. 1, No. 10 (Nov. 15, 1929), Washington, pp. 1-3. Department of Commerce, Aeronautics branch.

- Air commerce regulations. Effective as amended June 1, 1928.

Information Bulletin No. 7, Department of Commerce, Aeronautics branch, United States Government Printing Office, 1928, pp. 36.

- Air commerce stimulates nation's business.

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 41-42.

- Air commerce to stimulate nation's business.

Air Commerce Bulletin, Vol. 1, No. 11 (Dec. 2, 1929), Washington, pp. 5-6. Department of Commerce, Aeronautics branch.

- Air-line ticket office speeds plane travel.

Pop. Mech., Vol. 52 (July 1929), Chicago, pp. 72-73, ill.

- All aboard the Lindburgh limited !

Literary Digest, Vol. 100 (Mar. 2, 1929), New York, pp. 54-58, ill.

- Aviation mergers and the investor.

Literary Digest, Vol. 102 (Aug. 3, 1929), New York, pp. 56-58.

- Business on wings. 

Outlook, Vol. 151 (Feb. 20, 1929), New York, p. 296.

- Daylight flight to Panama.

Science, n. s., Vol. 69 (Mar. 8, 1929), Garrison, pp. sup. 12-14.

- 18,459 airway miles now operating in U. S.

American City, Vol. 39 (Dec. 1928), New York, p. 92.

-- Employment and production in airplane manufacture.

Monthly Labor Review, Vol. 29 (Aug. 1929), Washington, D. C, pp. 336-337.

Commercial aeronautico. From barnstorming to air liners, Pop. Mech., Vol. 52 (July 1929), Chicago, pp. 8-12, ill.

- Future of air travel.

Pop. Mech., Vol. 52 (Mar. 1929), Chicago, pp. 754-759, ill., diagr.

- Groupings in tbe aviation industry.

Scient. Amer., Vol. 141 (July 1929), New York, p. 58.

- International flying.

Pan American Magazine, Vol. 42 (Sept. 1929), Washington, D. C, p. 47.

- Preening wings of commerce.

Air Commerce Bulletin, Vol. 1, No. 3 (Aug. 1, 1929), Washington, pp. 1-3. Department of Commerce, Aeronautics branch.

- Production and license data:

Aviation, Vol. 27, No. 14 (Oct. 5, 1929), New York, pp. 692-717.

- Railroads take to the air.

Literary Digest, Vol. 102 (July 20, 1929), New York, p. 8, map.

- Ten years of air transport.

The Aeroplane, Vol. 37, No. 17 (Oct. 23, 1929), London, pp. 1001-1004, ill.

- Winning profits from aviation.

Review of Reviews, Vol. 79 (June 1929), New York, pp. 110-116.

- See Air Commerce Act : Flying school rating provided for in amendment

to air commerce act.

- See Airships : The Airship's place in to-morrow's commerce.

- See Bennett, Richard Rea : Aviation ; its commercial and financial aspects.

- See Bingham, Hiram: Amendment to Air Commerce Act introduced by

Senator Hiram Bingham passes Congress.

- See Calot, Charles : Les transports commerciaux ; manuel pratique ;

chemins de fer—navigation—automobilisme—aviation; preface de R. Bloch * * *

- Sec Commercial National Bank and Trust Company of New York : Financial handbook of the American aviation industry, July 1929, compiled and published by the Commercial National Bank and Trust Company of New York.

- See Ernst and Ernst: Grouping in the aviation industry. Status at the

time of going to press.

- See Favier, Louise-Faure : L'aviation marchande célèbre son Xe anniversaire.

- See Great Britain. Air Ministry. Grants to National Flying Services,

limited. Note by the Secretary of State for Air on the conditions under which certain government grants will be made to National Flying Services, limited, in respect of the issue and renewal of pilots' licenses to members of civil flying clubs affiliated to that company.

- See Hanks, Stedman Shumway : International airports.

- See Klemin, Alexander : American passenger air transport.

- See Logan, George Bryan : Aircraft law—made plain.

- See Matthias, Joachim : Present position, development and possibilities

of aerial traffic in South America, Central America, and Mexico.

Commercial aeronautics. See Matthias, Joachim : Das Weltflugwesen im Jahre 1928. I. Luftverkehr.

- See Mehne, Erich : Herausgegeben von. Handbuch für Luftfahrt und Luftfahrtindustrie.

- See Pollog, Ch. : Der Weltluftverkehr.

- See Traffic rules : Air traffic rules.

- See Vece, Francesco : Caratteristiche del trasporto aereo e sue possibilità

attuali.

Commercial airplanes. See Porter, Charles Talbot: Factors in the design of commercial airplanes.

Commercial aviation. Commercial aviation.

Flight, Vol. 21, No. 40 (Oct. 4, 1929), London, pp. 1065-1066.

- Pirating of trained personnel.

Aviation, Vol. 27, No. 24 (Dec. 14, 1929), New York, pp. 1168-1170.

- See Beltrami, Gian Mario : Le rotte del traffico aereo mondiale.

- See Bruner, S.-G. : Sur le choix de la grandeur et de la vitesse des avions

commerciaux.

- See L. J. : Une polémique sur l'avenir de l'aviation marchande.

- See Osborn, Earl D. : The industry's progress during 1928.

- See Poole, Frederick Arthur: Records of an airplane passenger in 1928

and 1929.

- See Pychon & Company : The aviation industry.

- See Rocca, Carlo: Les statistiques des transports aériens commerciaux.

- See Woolley, James G., Barl W. Hill, Wm. P. MacCracken, and CarlGustaf Roosby : Airplane transportation.

Commercial National Bank and Trust Company of New York. Financial handbook of the American aviation industry, July 1929, compiled and published by the Commercial National Bank and Trust Company of New York. New York, 1929, pp. 156.

Commission Internationale de Navigation Aérienne. Session extraordinaire de la Commission Internationale de la Navigation Aérienne.

L'Aérophile, 37e année, Nos. 13-14 (ler-15 juil. 1929), Paris, p. 220.

Compass. Commander Byrd's new-type compass.

Flight, Vol. 21, No. 52 (Dec. 27, 1929), London, p. 1349.

- See Coldeway, h. : Der Magnetkompass als aeronautisches Instrument.

- See Gatty, H. C. : How to swing your compass.

- See Klemin, Alexander : Learning to use our wings. A novel compass

compensator.

- See Mauer, H. : Eine Fehlerquelle des Sonnenkompass.

- See Morel : Le compas Morel pour avions.

- See Peace, John D. : Dewitching the compass.

- See Wills, F. P. : The magneto compass.

Compeb. The Comper Swift.

The Aeroplane, Vol. 36, No. 25 (June 19, 1929), London, p. 1034, diagr.

- The Comper Swift C. (L. A.) 7.

Flight, Vol. 21, No. 25 (June 20, 1929), London, pp. 503-504, diagr.

Condon, Glenn. Know your gasoline.

u. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. c, p. 90.

Congrès International de l'Aviation Sanitaire. See Charlet, Robert: Cequefut le premier Congrès International de l'Aviation Sanitaire.

CoNGRüiss. See United States Congress.

Congresses. See International Air Congress: 5th International Air Congress, The Hague, Holland, 1930.

Conington. The Conington air display.

The Aeroplane, Vol. 36, No. 25 (June 19, 1929), London, pp. 1026-1028, ill.

Connections. See Lamé, M: Tuyauteries et raccords.

Connolly, V. L. Daughters of the sky.

Delineator, Vol. 115 (Aug. 1929), New York, p. 9, ill.

- Wings over America.

Delineator, Vol. 115 (Sept. 1929), New York, p. 17, ill.

Consiglio1, Giuseppe. La legislazione contabile ed il servizio contrattuale delle amministrazioni militari per l'esecuzione di opere e per l'approvvigionamento di materiali con particolare riguardo a quello aeronautice.

Riv. Aeron., Anno 5, N. 10 (Ott. 1929), Roma, pp. 114-131.

Consolidated. Consolidated XPY-1 patrol boat.

Aero Digest, Voi. 14, No. 2 (Feb. 1929), New York, pp. 110, 112, ill.

Constant, H. On the stiffness of crankshafts.

Aer. Res. Comm., Rep. Mem., No. 1201 (E. 29), October 1928, London, 1929, pp. 16, illus., diagrs., tabls.

Aeronautics, Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 1035-1051, ills., diagrs., tabls.

Constantin, L. La stabilisation automatique des avions la perte de vitesse et la girouette Constantin.

Bull. Soc. Enc. Ind. Nat., 12 année, No. 2 (Feb. 1929), Paris, pp. 121-137, ill.

Construction. Silver brazing and soldering in airplane construction. Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 96.

- See Brenner, Paul: Dynamische Festigkeit von Flugzeug-Konstruktionsteilen.

- See Caspari, Walter: Sicherheit und Normung im Flugzeugbau.

- See Rohrbach, Adolf: Materials and methods of construction in light

structures.

- See Weyl, A. R : Eine kritsche Bemerkung zur Konstruktionspraxis.

Continental. Aviation's new partner—Continental Motors.

u. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. c, pp. 6162, ill.

- The Continental A-70.

Aviation, Vol. 26, No. 21 (May 25, 1929), New York, pp. 1792-1793, ill.

- Continental radial engine.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 132, ill.

Control. Slot and interceptor control.

Flight, Vol. 21, No. 15 (Apr. 11, 1929), London, pp. 291-292, ill.

-- See Boykow, H.: Mechanical control of airplanes.

- See Constantin, L.: La stabilisation automatique des avions la perte de

vitesse et la girouette Constantin.

- See Garner, H. M., and K. V. Wright: The longitudinal control of an

aeroplane beyond the stall.

--See Gradenwitz, Alfred: Device for the automatic control of airplanes.

--See Maas, H.-J. van der: Stuurstandslijnen van vliegtuigen; de bepaling

er van door mid del van vliegproeven en hare beteekenis voor de beoordeeling der stabiliteit.

- See Ofenstein, C. L.: Control system care and maintenance.

Controlled motion. See Cowley, W. L.: On the stability of controlled motion.

Cooling. See Engines: New cooling systems.

- See Frank, Gerhardt W.: High temperature liquid cooling.

- See Klemin, Alexander: Learning to use our wings * * * A new

cooling system.

Cooper, C. R. Frozen gold.

Sat. Even. Post, Vol. 202 (Sept. 21, 1929), Philadelphia, pp. 56-64, ill.

Cooper, Mabel. Randolph Field the greatest thing of its kind in the world.

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 27-28.

Cooper, W. C. See Penn, R. J., and W. C. Cooper. The use of the flowmeter in obtaining fuel economy.

Coppellotti, Celestino. II servizio informazioni e la grande esplorazione strategica.

Riv. Aeron., Anno 5, N. 12 (Die. 1929), Roma, pp. 454-493.

Corbett, Harvey Wiley. Underground hangar arrangements for future airports.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 96, 352, ill., diagr.

Cordero, F. See Brombacher, W. G., and F. Cordero: Pressure element of constant logarithmic stiffness for temperature compensated altimeter.

Corrosion. See Binnie, A. M.: The influence of oxygen on corrosion fatigue.

- See Bondor, Frank M.: Intercrystalline corrosion of duralumin.

- See Brenner, Paul: Korrosionsschutz von vergütbaren Aluminiumlegierungen im Flugzeugbau.

- See Rackwitz, Erich, und Erich K. O. Schmidt: Prüfung der Korrosionsbeständigkeit von Alcladblechen.

- See Rackwitz, Erich, und Erich K. O. Schmidt: Prüfverfahren zur Baur-

teilung der Korrosionsbeständigkeit von Metallen gegen Witterung und Seewasser.

--See Rawdon, Henry S.: Corrosion embrittlement of duralumin. V. Results of weather-exposure tests; VI. The effect of corrosion, accompanied by stress on the tensile properties of sheet duralumin.

- See Sutton, Harry: The use of light alloys in aircraft from the point of

view of corrosion.

Costes et Bellonte. Notes sur le matériel avec lequel Costes et Bellonte ont battu le record du inonde de distance.

L'Aérophile, 37e année, Nos. 21-22 (ler-15 nov. 1929), Paris, pp. 323-327, ill.

Cotton, Harry E. The strength of drain pipes for airports.

Airway Age, Vol. 10, No. 10 (Oct. 1929), New York, pp. 1606-1611, ill.

Couannier, André-Henry. Eléments créateurs du Droit aérien. Paris.

Couerégelongue, Jean. Hydrodynamique. Sur l'existence de deux familles de tourbillons à l'arrière des solides immergés.

C. R. Acad. Sei., T. 189, No. 23 (2 déc. 1929), Paris, pp. 972-974, ill.

Cotjpland, R. C. Recent developments in aircraft armament.

Aviation, Vol. 26, No. 1 (Jan. 5, 1929), New York, pp. 33-35, 47-53, ill.

Courtney, W. B. Excuse my clouds.

Collier's, Vol. 83 (Apr. 13, 1929), New York, pp. 8-9, ill.

- Up and going.

Collier's, Vol. 83 (Mar. 23, 1929), New York, pp. 8-9, ill.

Cowley, W. L. On the stability of controlled motion.

Aer. Res. Comm., Rep. Mem., No. 1235, (Ae. 390), December 1927, London, 1929, pp. 9, diagrs., tabl.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 700-708, diagrs., tabl.

Cowling. See Engines : More about the cowling of air-cooled engines.

- See Lajolo, Guido : Le capotage, rationnel des moteurs refroidis par

l'air.

- See Lewis, C. W. : N. A. C. A. cowling experiments interest S. A. E. at

Detroit.

- See M., R. J. : Les meilleures formes de capotage pour les moteurs

radiaux refroidis par l'air.

- See McAvoy, William H. : Notes on the design of the N. A. C. A. cowling.

- See National Advisory Committee for Aeronautics : Kühlwirkung und

Widerstand verschiedener Formen der Verschalung eines " Whirlwind "Sternmotors.

- See Schey, Oscar W. : The effect of fuel consumption on cylinder temperatures and performance of a cowled Wright J-5 engine.

- See Vultee, Gerard F. : The new N. A. C. A. cowling and its application

to the Lockheed " Air Express."

- See Vultee, Gerard F. : 20 miles faster.

Cox, H. L., and I. Backhurst. The effect of stress upon the X-ray reflections from tungsten wire at air temperature.

Aer. Res. Comm., Rep. Mem., No. 1221 (M. 61), January 1929, London, 1929, pp. 4, ills.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 982-985, ills.

Cox, H. L. See Gough, H. J., and H. L. Cöx: The behaviour of a single crystal of zinc subjected to alternating torsional stresses.

Cox, Harold Roxbee. The external forces on an airship structure with special reference to the requirements of rigid airship design.

Journ. Roy. Aer. Soc, Vol. 33, No. 225 (Sept. 1929), London, pp. 725-811, ills., diagrs.

Cram, Ralph. The air tour in retrospect.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 63-65, 261266, ill.

Cram, Ralph W. A layman's flying log. Forty thousand miles with more or less famous pilots.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 72, 272-282, ill.

Crankshaft's. See Constant, H.: On the stiffness of crankshafts.

- See Morris, J.: The effect of the damping of the throws on the torsional

vibration of the crankshaft system of an internal combustion engine.

- See Royal Aircraft Establishment: Torsional vibration of crankshafts.

A description of the R. A. E. MK. Ill tomograph.

- See Southwell, R. V.: The effective torsional rigidity of a crank.

- See Wedermeyer, E. A.: Kurbelwellenschwingungen.

Crary, Harold. Aerial radiophone in use.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 48-49, 236, ill.

Cravey, J. E. Travel Air determines its market.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 187-188.

Crocco, Arttjro. La sicurezza del volo nella nebbia.

Riv. Aeron., Anno 5, N. 10 (Ott. 1929), Roma, pp. 1-47, ill.

Crop dusting. See Kneen, Orville H.: Poison from the air.

Crosby, G. E. Airport development in the United States.

Public Works, Vol. 60, No. 3 (March 1929), New York, pp. 91-94, ill.

Cross-license. See McMullen, Joseph I.: Cross-license agreement of Dec. 31, 1928.

Crowley, J. W., Jr., and M. W. Green. An investigation of the aerodynamic characteristics of an airplane equipped with several different sets of wings. National Advisory Committee for Aeronautics, Report No. 304, April 12, 1929, Washington, United States Government Printing Office, 1929, pp. 14, ills., diagrs., tabls.

Crystals. See Gough, H. J., and H. L. Cox: The behavior of a single Crystal of zinc subjected to alternating torsional stresses,

- See Wright, S. J.: The elasticity of Pintsch crystals of tungsten.

Cuers-Pierrefeu. See Gruillot, G.: Le " Graf-Zeppelin " ä Cuers-Pierrefeu.

Culemans, J. B. The human factor in flying.

Aviation, Vol. 27, No. 24 (Dec. 14, 1929), New York, pp. 1163-1164, ill.

Cummings, H. K. Type testing of commercial airplane engines of medium power.

Aeronautical Engineering, Vol. 1, No. 2 (April-June 1929), pp. 45-47.

Cunningham-Hall. Cunningham-Hall biplane.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 106, 108, ill., diagr.

- The Cunningham-Hall PT-6 cabin biplane.

Aviation, Vol. 26, No. 22 (June 1, 1929), New York, pp. 1881-1882, ill., diagr.

Curtis, Frank L. Plane and ground communication by radio.

Aviation, Vol. 27, No. 26 (Dec. 28, 1929), New York, pp. 1262-1264, ill.

- A review of aviation accomplishments. An interview with Harry F.

Guggenheim.

Aviation, Vol. 27, No. 21 (Nov. 23, 1929), New York, pp. 1010-1011, ill. 9573—30-5

Cuktiss. Curtiss Conqueror-Condor.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, p. 124, ill.

- Curtiss Conqueror engine.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, p. 98, ill.

- Curtiss " Fledgling " commercial training plane.

U. S. Air Services, Vol. 14, No. 5 (May 1929), Washington, D. C, p. 32, ill.

»

- Curtiss-Reid Rambler.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 114, ill.

Curtiss Aeroplane and Motor Corporation. Curtiss * * * Conqueror aircraft engine handbook.

Buffalo, Curtiss Aeroplane & Motor Company, 1928, ill.

Curtiss-Chicago. The Curtiss-Chicago airport.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1948-1950, ill.

Curttss-Reid. The Curtiss-Reid "Rambler."

Flight, Vol. 21, No. 26 (June 27, 1929), London, pp. 518-519, ill.

Custer, James R. Aeronautical training at Detroit University.

Aviation, Vol. 26, No. 13 (March 30, 1929), New York, pp. 958-959, ill.

Customs. See Airports: U. S. airports of entry.

- See Mellon, Andrew W.: Treasury Department aircraft customs regulations.

Cutty Sark. See Saunders: The Saunders " Cutty Sark" commercial seaplane (British). A high-wing monoplane flying boat.

Cylinders. See Brewer, R. A.: Improved cast iron cylinder for air-cooled engines.

- See Fage, A.: The airflow around a circular cylinder in the region where

the boundary layer separates from the surface.

- See Fage, A.: The skin friction on a circular cylinder.

- See Glauert, H.: The accelerated motion of a cylindrical body through

a fluid.

- See Lamb, H.: The hydrodynamic forces on a cylinder moving in two

dimensions.

- See Stanton, T. E.: On the effect of air compression on drag and pressure distribution in cylinders of infinite aspect ratio.

- See Thorn, A.: The boundary layer of the front portion of a cylinder.

Czerevkov, A. P. Knickfestigkeit beschnittener und glatter Stäbe mit Bohrung.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 22. Heft (28 Nov. 1929), München, pp. 590-594.

D

DAC. The D A C Parasol monoplane.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 114, ill.

Damon, R. S. Mass methods the wings of aircraft production.

Factory and Industrial Management, Vol. 78 (July 1929), Chicago, pp. 35-37.

Damping liquids. See Keulegan, Garbis Hovannes: Investigation of damping liquids for aircraft instruments.

Daniel Guggenheim Fund. See Angermund, Walter: Der Daniel Guggenheim-Fonds.

Danley, Ernest Everett. Law of aerial navigation. Memorandum prepared for the Attorney General on the law of aerial navigation.

Washington. U. S. Government Printing Office, 1929, pp. 5. 70th Congress, 2d session. Senate. Doc. 221.

Darling, V. G. Across the continent in forty-eight hours.

World's Work, Vol. 58 (Sept. 1929), Garden City, N. Y., pp. 52-56, ill.

Dash-pot. See Fewster, T. H.: A dash-pot for use in spinning experiments on a model aerofoil.

David, E. J. Flying the frozen north.

St. Nicholas Magazine, Vol. 56 (Aug. 1929), New York, pp. 811-814, ill., map.

Davis, E. G. Aircraft dope and finish problems.

Aviation Engineering, Vol. 2, No. 2 (Feb. 1929), New York, p. 10.

Davis, W. J. Mrs. Summering in the clouds.

Good Housekeeping, Vol. 88, New York, pp. 32-33, ill.

Davison, F. Trubee. The air races and the National defense.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, p. 380, ill.

- Progress of the Army Air Corps.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 59, 262-266, ill.

Davison, B. L. Airport design and construction.

Architectural Record, Vol. 6, No. 5 (May 1929), New York, pp. 490-515, 182, 184, ill.

- Basic field design.

Architectural Record, Vol. 65 (May 1929), New York, pp. 502-512, ill., diagr., plans.

- Hangar construction and costs.

Architectural Record, Vol. 65 (May 1929), New York, pp. 498-502, ill., diagrs., plans.

Day, Omar H., and Terence Vincent. Miniature aircraft; how to make and how to fly them; a manual for use in the club, school, or home. Peoria, 111., The Manual Art Press, 1929, pp. 86, ill., diagrs.

Dayton. New Dayton airport has unique design and equipment features. Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 635-637, ill.

D'Annunzio. See Italy: Le vie del cielo. Raccolta di scritti aeronautici [a cura di] Aldo Barbaro, Mussolini, D'Annunzio, Italo Balbo [ecc].

De France, Smith J. Flight tests on U. S. S. " Los Angeles." Part I—Full scale pressure distribution investigation.

National Advisory Committee for Aeronautics, Report No. 324, Nov. 18, 1929, [Washington], pp. 33, ills., diagrs., tabls.

De France, Smith J., and C. P. Burgess. Speed and deceleration trials of U. S. S. Los Angeles.

National Advisory Committee for Aeronautics, Report No. 318, Oct. 9, 1929, [Washington], pp. 20, ill., diagrs., tabls.

De France, Smith J. See Carroll, Thomas, and Smith J. De France: The use of wheel brakes on airplanes.

De Havilland. The De Havilland D. H. 75 "Hawk Moth" (British). Cabin monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 91, March 12, 1929, Washington, March 1929, pp. 6, illus.

- The De Havilland Gipsy engine.

The Aeroplane, Vol. 36, No. 3 (Jan. 16, 1929), London, p. 94, ill.

- The De Havilland Hawk-Moth.

The Aeroplane, Vol. 36, No. 6 (Feb. 6, 1929), London, pp. 204a-204b, ill., diagr.

Flight, Vol. 21, No. 6 (Feb. 7, 1929), London, pp. 93-98, ill., diagr.

Dean, Jack. The second Kansas air tour. State-wide benefits to aeronautics result from N. A. A. activity.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 34, 47, ill.

Deane, Gerald N. Overseas trade and co-operation.

The Aeroplane, Vol. 37, No. 21 (Nov. 20, 1929), London, pp. 1194, 1196.

Decalage. See Knight, Montgomery, and Richard W. Noyes: Wind tunnel pressure distribution tests on a series of biplane wing models. Part II. Effects of changes in decalage, dihedral, sweepback, and overhang.

Dedalo'. Come divenni aviatore.

Milano, Fratelli Treves Editori—pp. 210, ill.

Deimkl, Richard F. Mechanics of the gyroscope.

New York, The Macmillan Company, 1929, pp. ix + 192, ill.

Dellinger,, J. H., and H. Diamond. Radio development applied to aircraft. Mech. Eng., Vol. 51, No. 7 (July 1929), New York, pp. 509-514, ill.

Dellinger, J. H. Uses of radio as an aid to air navigation.

Journal, American Institute of Electrical Engineers, Vol. 48, No. 2 (Feb. 1929), New York, pp. 105-109, ill.

Denver. See Parker, Willis: Denver's new municipal airport.

Department of Commerce. See Collier trophy: Collier trophy awarded to aeronautics branch of the Department of Commerce.

- See Keyhoe, Donald E: Aeronautics branch of the Department of

Commerce.

DeRitis, B. The Italian aeronautical industry.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 75, 108.

Des grands champs, R. G. Compendio de aerodinamica. Paris, Librairie des Sciences Aeronautiques.

Design. Trend of airplane design.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, pp. 1-3. Department of Commerce, Aeronautics branch.

- See Neville, Leslie E.: A review of 1928 design development.

Desoutter. The Desoutter three-seat cabin monoplane.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 26 (June 26, 1929), London, pp. 1070b-1070d, ill.

- The Desoutter three-seater monoplane.

Flight, Vol. 21, No. 18 (May 2, 1929), London, pp. 352-355, ill., diagr.

- The new Desoutter-Cirrus monoplane.

Flight, Vol. 21, No. 17 (Apr. 25, 1929), London, p. 336, ill.

Desprez Cup. The Desprez Cup competition.

Flight, Vol. 21, No. 22 (May 30, 1929), London, pp. 447-450, ill.

Detonants. See Tegner, H. S.: Metallic and anti-detonants.

Detroit. Ail-American aircraft show. Detroit, Michigan, Saturday, April 6th to Sunday, April 14th.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 55-57.

- The Detroit show.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 663-665, ill.

- See Custer, James R.: Aeronautical training at Detroit University.

- See Marshall, Fred F.: The second all-American aircraft show.

- See Nevill, John T.: Detroit's all-American aircraft show.

Detroyat, Michel. See Blanchet, Georges: Aviateurs contemporains. Michel Detroyat.

Deutschen Versuchsanstalt für Luftfahrt. Jahrbuch 1929 der Deutschen Versuchsanstalt für Luttfahrt, E. V., Berlin-Adlershof.

München, Druck von R. Oldenbourg [1929], pp. 480, ills., diagrs., tabls.

Development. See North, John D.: The technical development of the aeroplane.

Dewall, Job Heinrich von. Krise in der Luftfahrt?

Illustrierte Flug-Woche, 11. Jahrg., Heft 2/3, 1929, Berlin-Lichterfelde, pp. 29-31.

Dew, Arthur W. The first nonstop transatlantic flight.

TJ. S. Air Services, Vol. 14, No. 6 (June 1929), Washington, D. C, pp. 42, 44.

Dewitz, Ottfried v. See Hoff, Wilh., Ottfried v. Dewitz, und Georg Madelung: Jahrbuch 1929 der Deutschen Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof.

Diamond, H. See Dellinger, J. H., and H. Diamond: Radio development applied to aircraft.

Diohman, Ernest Wykeham. This aviation business.

New York, Brentano's, 1929, pp. xiv, 274, ill., maps.

Dickinson, H. C. Commercial aircraft engines.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 102, 274.

Dictionaries. See Vanier, Joseph F.: Dictionary of aeronautical terms in abridged form, German-English-French; French-English-German.

Diehl, Walter S. Joint report on standardization tests on N. P. L. R. A. F. 15 airfoil model.

National Advisory Committee for Aeronautics, Report No. 309, May 18, 1929, Washington, United States Government Printing Office, 1929, pp. 20, ills., diagrs., tabls.

Dierbach, E. Grundsaetzliches ueber Flughafenbau.

Zeitschr. Ver deutscher Ing., Bd. 73, Nr. 32 (10. Aug. 1929), Berlin, pp. 1125-1130, ill.

Diesel Engines. Diesel air-triumph has broad significance.

Oil Engine Power, Vol. 7, No. 6 (June 1929), New York, pp. 332-334, ill.

- The precompression-chamber Diesel engine.

Mech. Eng., Vol. 51, No. 1 (Jan. 1929), New York, pp. 71-73. Abstract of paper by Kurt Neumann in Zeitschrift des Vereines deutscher Ingenieure, Vol. 72, No. 36 (Sept. 8, 1928), pp. 1241-1248, ill.

- See Cleveland, R. M.: Is the airplane Diesel practical?

- See Ecorchon, F.: Le moteur Diesel et ses derives.

- See Engines: Diesel engine for airplane.

Diesel Engines, See Hersey, Mayo D. : Viscosity of Diesel engine fuel oil under pressure.

- See McDarment, C. : Latest sky engine ; air-cooled radial motor operating

on the Diesel principle.

- See Selliger, Myron: Kompressorlose Dieselmotoren und Semidieselmotoren.

- See Vincent, E. T.: When the Diesel?

- See Woolson, L. M. : Advantages of Diesel-type aircraft engine pictured

from tests.

Diggens, Ralph. Give service plus to the air traveler.

Aviation, Vol. 26, No. 6 (Feb. 9, 1929), New York, pp. 396-398, ill.

Dihedral. See Knight, Montgomery, and Richard W. Noyes: Wind tunnel pressure distribution tests on a series of biplane wing models. Part II. Effects of changes in décalage, dihedral, sweepback and overhang.

Dille, Harry C. Aviators' handy-book.

Kansas City, Mo., Retail Lumberman Publishing Co., 1929, pp. 64.

Directories. Aeronautics trade directory. Part I. Commodities. Part II. Activities. June 1, 1929.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 3, United States Government Printing Office, Washington, 1929, pp. 53.

Dirigibles. See Airships.

- See Akron : Helium at Akron.

Distance. See Costes et Bellonte : Notes sur le matériel avec lequel Costes et Bellonte ont battu le record du monde de distance.

Dix, E. H., Jr. Service characteristics of light alloys.

Amer. Mach., Vol. 71, No. 11 (Sept. 12, 1929), New York, pp. 441-444, ill.

Dobberke, Max, und Karl Schraivogel. Flugzeug-Sperrholz und seine Prüfung.

Jahrb., 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 202-210, ills.

Doetsch und Mayer. Die Wertungsformeln für das Rheinische Flugturnier Düsseldorf.

Zeitschr, Flugt. Motorluftsch., 20, Jahrg., 4 Heft (28 Feb. 1929), München, pp. 85-94, ill., diagrs., tabls.

Doisy, Pelletier, Gonin, et Vigroux. Le tour de la Méditerranée à bord d'un avion Amoit.

Lorraine.

Dollfus, Charles. Le Blériot XI de la traversée de la Manche.

L'Aéronautique, lime année, No. 122 (Juil. 1929), Paris, pp. 236-237, ill.

- La course.

L'Aéronautique, lime année, No. 125 (oct. 1929), Paris, pp. 329-330, ill.

- Un exploit sans précédent ; le tour du monde du " Graf Zeppelin."

L'Aéronautique, lime année, No. 124 (sept. 1929), Paris, pp. 293-294,111.

- Nouveaux parachutes français.

L'Aéronautique (L'Aérotechnique, 6e année, No. 73), lime année, No, 116 (jan. 1929), Paris, pp. 23-27, ill.

- A propos des derniers voyages du Zeppelin L. Z. 172.

L'Aéronautique, lime année, No. 121 (juin 1929), Paris, p. 180.

^— See Hirschauer, L., et Ch. Dollfus : L'année aéronautique 1928-1929.

Doolittle, James H. Air racing technique and tactics.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929, New York, pp. 382-386, ill.

- Simulated landings, take-offs in fog made by Lieut. Doolittle.

Aviation, Vol. 27, No. 14 (Oct. 5, 1929), New York, pp. 718, 724, ill.

- See Guggenheim, Harry F. : N. A. A. lauds Guggenheim and Doolittle for

fog-flying success.

Dope. See Davis, E. G. : Aircraft dope and finish problems.

- See Parker, Willis : Keeping the dope room clean.

Dornier, El aeroplano mayor del mundo.

Ibérica, año 16, Nú m, 797 (12 de oct. de 1929), Barcelona, pp. 212-213, ill.

- L'avion géant Dornier Do-X.

L'Aérophile, 37e année, Nos. 15-16 (ler-15 août 1929), Paris, pp. 250-251, ill.

- The Do-X takes the air.

Flight, Vol. 21, No. 30 (July 25, 1929), London, pp. 745-746, ill.

Dorn 1er., C. Notes on a family of similar flying boats.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 140, 142, ill.

- Mitteilungen über eine Familie ähnlicher Flugboote.

Die Luftwacht, Heft 4, April, 1929, Berlin, pp. 169-180, ill.

Douglas, Edwin R. Concerning the burdens and costs.

Aviation, Vol. 26, No. 11 (Mar. 16, 1929), New York, pp. 805-809, charts.

- The overhead expense of direct labor.

Aviation, Vol. 26, No. 4 (Jan. 26, 1929), New York, pp. 249-251.

Douglas, G. P., and W. G. A. Perring. Wind tunnel tests with high tip speed airscrews. The characteristics of a conventional airscrew section, 0.082c thick, and of R. A. F. 27 and R. A. F. 28.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 383-390, ills., diagrs., tabls. (R. & M'. No. 1174).

- Wind tunnel tests with high tip speed airscrews. Some experiments

upon an airscrew of conventional blade section, aerofoil R. & M. 322, No. 3, at high speeds.

Aer. Res. Comm., Rep. Mem., No. 1198 (Ae. 359), May 1928, London, 1929, pp. 4, ills., diagrs., tabl. Aeronautics, Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 391-394, ills., diagrs. tabl.

Douglas, Wm. D., and C. B. Petttfor. The testing of adhesives for timber.

Journ. Roy. Aer. Soc, Vol. 33, No. 218 (Feb. 1929), London, pp. 92-128, ills., diagrs. tabl.

Douhet, Giulio. Appunto per la proporzione delle parti.

Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 1-39.

- Circa le grandi unità aeree.

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 441-450.

- Die Vorherrschaft in der Luft.

Die Luftwacht, Heft 3-4, März-April, 1929, Berlin, pp. 112-116, 165-168.

- Difesa aerea e protezione contro aerea.

Riv. Aeron., Anno 5, N. 7 (Luglio 1929), Roma, pp. 31-56.

- Resistere sulla superficie per far massa suU'aria.

Riv. Aeron., Anno 5, N. 2 (Feb. 1929), Roma, pp. 221-241.

- Riepilogando.

Riv. Aeron., Anno 5, N. 11 (Nov. 1929), Roma, pp. 217-294.

Dowty, George H. Internally-sprung wheels for aircraft.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 9 (Feb. 27, 1929), London, pp. 321-324, diagr.

Doyle, O. M. Underwriting aviation insurance.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 87, 358.

Drag. See Boehnlein, Charles: Integration of the theoretical expression for drag.

- See Fage, A.: On the two-dimensional flow past a body of symmetrical

cross-section mounted in a channel of finite breadth.

- See Glauert, H.: The characteristics of a Karmán vortex street in a

channel of finite breadth.

- See Glauert, H.: The effect of the static pressure gradient on the drag of

a body tested in a wind tunnel.

- See Glauert, H.: A theoretical estimate of the pressure gradient in a

wind tunnel.

- See Millikan, Clark B.: The induced drag viewpoint of performance.

- See Töpfer, Carl: Airplane drag.

Drainage. See Airports: The drainage of air-parks.

- See Cotton, Harry E.: The strength of drain pipes for airports.

Driggs, I. H. The modern aerodynamic theory in design.

Aviation (Aeronautical Engineering Supplement), Vol. 26, No. 3 (Jan. 19, 1929), New York, pp. 2-5, ill.

Driscoll, Marjoriei. Flying by radio.

U. S. Air Services, Vol. 14, No. 8 (Aug. 1929), Washington, D. C, pp. 41-42.

Dryden, H. L., and A. M. Kuethe. The measurement of fluctuations of air speed by the hot-wire anemometer.

National Advisory Committee for Aeronautics, Report No. 320, Oct. 30, 1929, Washington, United States Government Printing Office, 1929, pp. 26, ills., diagrs., tabls.

Dryden, H. L. See Briggs, Lyman James, and H. L. Dryden: Aerodynamic characteristics of twenty-four airfoils at high speeds.

Dubois, Bernard J. Vitesses des chutes ascendantes de Pair dans les canalisations verticales athermanes.

L'Aérophile, 37e année, Nos. 13-14 (ler-15 juil. 1929), Paris, pp. 201-202.

Duchess of Bedford. Duchess of Bedford's record flight. England-India-England in eight days.

Flight, Vol. 21, No. 33 (Aug. 15, 1929), London, pp. 878-880, ill.

Ducout, Marcel. La Coupe Schneider est conservée par les Anglais.

L'Aérophile 37e année, Nos. 17r-18 (ler-15 Sept. 1929), Paris, pp. 267-273, ill.

- Le rallye ballons feminin et la concours d'atterrissage de 1'Aero-Club.

L'Aérophile, 37e année, Nos. 11-12 (ler-15 juin 1929), Paris, pp. 173-175, ill.

- " The time has come."

L'Aérophile, 37e année, Nos. 9-10 (ler-15 mai 1929), Paris, p. 129.

Duelks, Jack W. Marketing the light commercial airplane.

Aviation, Vol. 27, No. 5 (Aug. 3, 1929), New York, pp, 252-255, ill.

Duncan, Richard. Air navigation and meteorology, New York, Goodyear Willco?, Inc., 1929,

Duncan, W. J. See Frazer, R. A., and W. J. Duncan: The flutter of aeroplane wings.

- See Frazer, R. A., and W. J. Duncan: Wing flutter as influenced by the

mobility of the fuselage.

Duncanson, F. Cantilever wings. A conventional method of strength analysis.

Aircraft Engineer suppl. Flight, Vol. 21, No. 13 (Mar. 28, 1929), London pp. 258a-258b, diagr.

- Cantilever wings. An investigation of torsional strength and stiffness.

Aircraft Engineer suppl. Flight, Vol. 21, No. 26 (June 27, 1929), London pp. 522a-522c.

Dunlap, D. Earle. The tail wheel.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 148, 150, ill.

Dunlap, William Allan. Georgia air tour. Aeronautical interest and activity sweeps the state as the starting day approaches.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, pp. 25-26, 30 ills.

Dunlap, W. M. Welding aluminum and its alloys.

Aeronautical Engineering Section, Aviation, Vol. 26, No. 11 (Mar. 16, 1929), New York, pp. XL-LI, ill., diagr.

Duralumin. How to weld duralumin.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, p. 164.

- See Bondor, Frank M.: Intercrystalline corrosion of duralumin.

- See Hardecker, John F.: Extruded duralumin in aircraft.

- See Rawdon, Henry S.: Corrosion embrittlement of duralumin. V. Results of weather-exposure tests; VI. The effect of corrosion, accompanied by stress on the tensile properties of sheet duralumin.

- Sec Ross, Orrin C.: Curves showing column strength of steel and duralumin tubing.

- See Svehia, G.: The duralumin propeller.

Duran, Heriberto. Los aeropuertos en los Estados Unidos de Norteamérica.

Ibérica, Vol. 32, No. 808, Año 16, Tomo<> (28 die. 1929), Barcelona, pp. 392395, ill.

Duval, A.-B. Peut-on perfectionner la conduite des avions? La tenue du cap independante.

L'Aéronautique, lime année, No. 126 (nov. 1929), Paris, pp. 360-361.

Dyke, Andrew Lee. Dyke's aircraft engine instructor.

Chicago, The Goodheart-Willcox Company, inc., 1929, pp. x, 425, ill., diagrs. Third edition with additions.

E

E-l airplane ski. See Ski: Static test report of type E-l airplane ski. (Airplane branch report.)

Eaglerock. The Eaglerock Bullet.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 102, 104, ill.

--See Klemin, Alexander: Learning to use our wings * * * Eaglerock

bullet.

Earhart, Amelia. Miss Earhart tells her story to women.

U. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, p. 43.

- Questions I have met.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, p. 7, port

Earhart, Amelia. See McMullen, F. D. : First women's air derby ; interview with A. Earhart.

East Africa. Civil aviation prospects in East Africa.

Flight, Vol. 21', No. 21 (May 23, 1929), London, pp. 428-431.

- The opportunities of civil aviation in East Africa.

The Aeroplane, Vol. 36, No. 20 (May 15, 1929), London, pp. 785-790, ill.

—■— See Tymms, F.: Prospects of civil aviation in. East Africa.

Ebner, Hans, Zur berechnung räumlicher Fach werke im Flugzeugbau.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V, Berlin-Adlershof, München, [1929], pp. 371-414, ills., diagrs., tabJs.

Eckener, Hugo. Die Amerikafahrt des " Graf Zeppelin " * * * herausgegeben von Rolf Brandt.

Berlin, A Scherl g. m. b. h. [1928], pp. 114, ills., ports., map.

Écorchon, F. Le moteur Diesel et ses dérivés (moteurs à boule chaude et moteurs à précombustion) ; traité théorique et pratique à l'usage des utilisateurs.

Paris, Ch. Delagrave, 1929, pp. 533.

Edgerton, Joseph S. The air classic of the century. The n. A. A.'s annual flying meet goes down in history as the greatest to date. Complete official results of all events.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 21-23, 52, ill.

- The Army Air Corps maneuvers. The air force is held to be pitifully

inadequate for the national defence.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 11-13, ills.

- Seeing America from T. A. T.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, pp. 11-15, 38, ills.

Education. Aeronautic education in colleges and universities.

Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, pp. 265-269, ill.

Efficiency. See Weick, Fred E., and Donald H. Wood : The effect of the wings of single-engine airplanes on propulsive efficiency as shown by full scale wind tunnel tests.

Einstein. See Non-conductors : Metallising non-conductors. The Einstein electro-chemical process.

Electrical equipment. See Packer, Alfred Herbert: Electrical trouble shooting on the motor car and airplane.

Electricity. Electrical fire hazards on airplanes.

Domestic Air News, Serial No. 50, April 15, 1929, Washington, p. 10. Department of Commerce, Aeronautics branch.

Elgin, Hugh. Arkansas air tour. Second annual event is most successful and profitable.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 25-26, ill.

Ellis, L. B. A beacon for birdmen. Lights to guide fliers will be added to the giant bell tower in Florida's wild-life sanctuary.

Scient. Amer., Vol. 140, No. 2 (Feb. 1929), New York, pp. 122-123, ill.

Ellsworth, A. E. Selling airplanes on the installment plan.

Aero Digest, Vol, 15, No. 2 (Aug. 1929), New York, pp. 78, 260, ill.

Ellsworth, Lincoln. Air pioneering in the Arctic ; the two polar flights of Roald Amundsen and Lincoln Ellsworth. Part I : The 1925 flight from Spitzbergen to 88° north ; Part II : The first crossing of the polar sea, 1926. New York, National Americana Society, 1929, pp. 126, ills., ports., maps.

Elm, Ienar Ewald. Avigation by dead reckoning (aerial navigation).

Philadelphia, David McKay Company [1929], pp. 120, port., ills., map.

Emsco. The Emsco " Challenger " tri-engined monoplane.

Aviation, Vol. 27, No. 15 (Oct. 12, 1929), New York, pp. 746-748, ill.

Endurance record'. Endurance flight record is 420 hr.

Aviation, Vol. 27, No. 6 (Aug. 10, 1929), New York, p. 310.

- See Greene, D. B. : Messages from the sky. A narrative of what Reg and

Jim thought and did while breaking and making a new world record.

Energienivellierer. See Sclimieschek, Ulrich : Der Energienivellierer, ein neues Gerät zur Untersuchung von lichtempfindlichen Emulsionen auf ihre selektive Empfindlichkeit.

Engelhardt, N. L. Economical expansion of au airport.

American City, Vol. 40 (Apr. 1929), New York, p. 90.

Engine starters. Inertia starters for aero engines.

Flight, Vol. 21, No. 10 (Mar. 7, 1929), London, pp. 181-182, ill.

Engineers. Aeronautical engineers meet in St. Louis.

Airway Age, Vol. 10, No. 7 (July 1929), New York, pp. 994-999.

Engines. Air-cooled engines in service.

Flight, Vol. 21, Nos. 8-9 (Feb. 21-28, 1929), London, pp. 142-144, 169-173, diagr., charts.

- Aircraft Diesel engines.

Scient. Amer., Vol. 140 (Apr. 1929), New York, pp. 356-358, diagrs.

- Characteristics of air-cooled engines.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 9 (Feb. 27, 1929), London, pp. 326-327, ill., chart.

- The compression-ignition engine.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 9 (Feb. 27, 1929), London, pp. 329-330.

- Diesel engine for airplanes.

Literary Digest, Vol. 102 (Aug. 10, 1929), New York, p. 21, ill.

- Engines approved for licensed airplanes.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, pp. 23-24. Department of Commerce, Aeronautics branch.

- L'équipement des groupes moteurs.

L'Aéronautique, lime année, Nos. 120, 121, 126, (mai, juin, août, nov., 1929), Paris, pp. 151-161, 187-202, 283-287, 381-384, ill.

- Flying for less than a cent a mile.

Literary Digest, Vol. 101 (May 25, 1929), New York, p. 9.

—— Fuels and dopes for aircraft engines.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 22 (Nov. 27, 1929), London, pp. 1240, 1244.

- How long will an engine last?

Scient. Amer., Vol. 141 (July 1929), New York, pp. 72-73.

- The manufacture of aero engine and electrical component parts.

Flight, Vol. 21, No. 33 (Aug. 15, 1929), London^ p. 884, diagr.

Engines. More about the cowling of air-cooled engines.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 17 (Apr. 24, 1929), London, pp. 653-656, diagr.

- New cooling system.

Scient. Amer., Vol. 141 (July 1929), New York, p. 70, ill. *

- Performance-testing of aero engines.

The Aeroplane, Vol. 36, No. 12 (Mar. 20, 1929), London, p. 458.

- Revised lists approved engines.

Domestic Air News, Serial Nos. 44, 46, 49-54, Jan. 15, Feb. 15, March 31-June 15, 1929, Washington, pp. 20-21, 22-23, 24, 14, 16-17, 23, 28, 16. Department of Commerce, Aeronautics branch.

- Un type nouveau de moteour pour avions légers " Le Statax."

L'Aérophile, 37e année, Nos. 15-16 (ler-15 août 1929), Paris, pp. 252-253, ill.

- See Becker, lt. : Impact waves and detonation.

- See Boone, Andrew R. : New cleaner developed for airplane engines.

- See Bossi, Enea : High powered aircraft engines.

- See Bothwell, E. J. : Nickel cast iron engine cylinders.

- See Bowen, R. Sidney, jr. : Engine service from coast to coast.

- See Brewer, R. A. : Improved cast iron cylinder for air-cooled engines.

- See Brooks, Donald B. : Correcting engine tests for humidity.

- See Bruemmer, A. V. : The engines of the " Graf Zeppelin."

- See Bruner, S. G., et P. Massenet: Rayon d'action des avions inulti-

moteurs.

- See Caminez, Harold: Present status of European airplane engines.

- See Caminez, Harold : Visite d'un ingénieur américain à nos usines de

moteurs.

- See Capetti Antonio : Effect of intake pipe on the volumetric efficiency

of an internal combustion engine.

- See Caple, A. N. : Cirrus Mark III.

- See Christian, M. : Neue Flugmotoren auf der Olympia-Schau 1929.

-- See Cirrus : Navy to test Cirrus engines. Demands on output being made

by Great Lakes company.

- See Comet : A new " Commet " appears. Another tool-machine builder

enters the engine field.

- See Constant, H. : On the stiffness of crankshafts.

- See Continental: Continental radial engines.

- See Cummings, H. K. : Type testing of commercial airplane engines of

medium power.

- See Curtiss Aeroplane and Motor Corporation: Curtiss * * * Conqueror aircraft engine handbook,

- See Dickinson, H. C. : Commercial aircraft engines.

—— See Diesel engine: Diesel air-triumph has broad significance.

- See Diesel engine: The precompression-chamber Diesel engine.

- See Dyke, Andrew Lee: Dyke's aircraft engine instructor.

Engines. See Ecorchon, F. : Le moteur Diesel et ses dérivés. (Moteurs à boule chaude et moteurs à précombustion.) Traité théorique et pratique à l'usage des utilisateurs.

- See Farman : Le moteur Farman 9 E a 250 HP refroidi par l'air.

- See Faurote, Fay Leone: New Wright aeronautical engines.

t- See Fedden, A. H. R. : Air-cooled engines.

- See Fedden, A. H. R. : Air-cooled engines in service.

- See Fell, L. F. R. : Jacketed cylinder engines.

- See Fiat: II Fiat A-50 (85-90 c. v.)

- See Fliedner, C. S. : Condensed data on the aircraft engines of the

world.

—— See Foord, F. A. : The lubrication of aircraft engines.

- See Garrigues, Pierre: Les installations modernes d'essai des moteurs.

- See Geisse, J. H. : Gauging engine performance.

- See Geisse, J. H. : Installation and care of aircraft engines.

- See Gosslau, F. : Mathematical and experimental investigation of heat

control and power increase in air-cooled aircraft engines.

- See Grebel, A. : " Safety " fuels for aircraft engines.

- See Gustosa, Corrado: I perfezionamenti degli Ultimi motori d'aviazione

raffreddati ad aria.

- See Hardecker, John F. : Standardization of small engine parts.

- See Heron, S. D. : The in-line air-cooled engine.

- See Hersey, Mayo D. : Viscosity of Diesel engine fuel oil under pressure.

- See Hynes, G. B. : Engine performance testing.

- See Irwin, E. R. : Effect of cold weather on motor operations with different oils.

- See Joachim, William F., and A. M. Rothrock: Fuel vapor pressures

and the relation of vapor pressure to the preparation of fuel for combustion in fuel injection engines.

- See Kamm, Wunibald, und Albert Stieglitz Schwingungsuntersuchungen

an der Maschinen anläge des Luftschiffes " Graf Zeppelin."

- See Kiemin, Alexander: Learning to use our wings * * * How long-will an engine last?

- See Lamé, M. : Les nouveaux moteurs d' aviation.

- See Lavaud, D. S. de: Possibilités de vol avec un moteur stoppé sur

avions bimoteurs.

- See Lawrence, Charles L. : The development of the airplane engine in the

United States.

- See Le Blond: LeBlond sixty aircraft engine composed of small number

of parts.

- See Le Blond Aircraft Engine Corporation: Le Blond service manual.

- See Liberty engines: Test of standard water-cooled Liberty-12 engine

with various piston rings and arrangements. (Power plant branch report.)

Engines. See List, Hans: Crankcase scavening of two-stroke-cycle engines.

- See Lycoming: The Lycoming aero engine.

- See Martinot-Lagarde: Au sujet des moteurs ä combustibles lourds,

pour l'aviation.

- See Mead, George J.: The development of fixed radial air-cooled engines.

- See Mead, George J.: Historical development of air-cooled engines.

- See Morris, J.: The effect of the damping of the throws on the torsional

vibration of the crankshaft system of an internal combustion engine.

- See Morrison, L. K.: Specifications for motor oils. Labelling proper

lubricating oils for various types of motors.

- See Nelson, William: Airplane engine maintenance and overhaul.

- See Neumann, Kurt: The transformation of heat in an engine.

- See 1928: Aircraft and engine manufactures show great increase during

1928.

- See Oil: Relationship of laboratory tests and cold weather motor operation of various oils—Part II. (Material branch report.)

- See P. L.: Banc d'essai des moteurs refroidis par l'air chez Farman.

- See Packer, Alfred Herbert: Electrical trouble shooting on the motor car

and airplane.

- See Page, Victor Wilfred : Modern aviation engines * * *.

- See Penn, R. J.: Aero engine problems in flight with particular reference

to carburetion.

- See Royal Aircraft Establishment: Torsional vibration of crankshafts.

A description of the R. A. E. MK. Ill torsiograph.

- See Schey, Oscar W.: The effect of fuel consumption on cylinder temperatures and performance of a cowled Wright J-5 engine.

- See Schey, Oscar W., and W. D. Gove: The effect of supercharger capacity

on engine and airplane performance.

- See Schulz, R.: Die Lorenzen-Abgasturbine.

- See Selliger, Myron: Kompressorlose Dieselmotoren und Semidieselmotoren.

- See Shoemaker, James M.: Watercooled aircraft engines.

- See Smith, Karl F.: The maintenance and repair of Navy aircraft engines.

- See Southwell, R. V.: The effective torsional rigidity of a crank.

- See Steigenberger, O.: Beitrag zur Triebwerksberechnung von Flugmotoren.

- See Steigenberger, O.: Calculation of the pressures on aircraft engine

bearings.

- See Stieglitz, Albert: Drehschwingungen in Reihenmotoren.

- See Taylor, C. Fayette, and M. S. Kuckle: Heat flow in aircraft engine

pistons.

- See Taylor, C. Fayette: A study of the engines exhibited at the Olympia

aero show.

Engines. See Tiltman, A. H. : Air-cooled engines and metal planes dominate London aero show held for the first time after an interval of ten years.

- See Vaughan, G. W. : Manufacturing new engine models.

- See Ventou-Duclaux, L. : Les moteurs à deux temps ; moteurs à explosion

et à combustion à essence et à carburants lourds destines à l'automobilisme et à l'aviation.

- See Wasp : The Wasp series " C."

- See Weclermeyer, E. A. : Kurbelwellenschwingungen.

- See Weick, Fred E. : Drag and cooling with various forms of cowling for

a " Whirlwind " radial aircooled engine—I.

- See Weick, Fred E. : Drag and cooling with various forms of cowling for

a " Whirlwind " radial aircooled engine—II.

- See Weick, Fred E. : The drag of a J-5 radial air-cooled engine.

- See Woolson, L. M. : Advantages of Diesel-type aircraft engine pictured

from tests.

England. See Beck, Waldemar : The air political situation of England.

England-India. The opening of the England-India air service.

The Aeroplane, Vol. 36, No. 15 (Apr. 3, 1929), London, pp. 532-533, ill.

Enriques, F. Meteorologia.—Sul calcolo della turbolenza nei bassi strati atmosferici.

Atti della Reale Accademia Nazionale dei Lincei, 1929 (VII), Rendeconti Voi. 9, Fase. 10 (19 Mag. 1929), Roma, pp. 898-902, tabls.

Ent, Uzal, G. Lieutenant Ent to receive the Cheney award.

U. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, d. C, p. 82, ill.

Entomology. Airplanes in entomology.

Science, n. s., Vol. 69 (Feb. 22, 1929), Garrison, N. Y., sup. 12.

Enyart, William R. The Guggenheim competition under way.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1944-1947, ill.

Eredia, Filippo. Le indagini sulla copertura delle nubi attraverso le osservazioni meteorologiche ed aerologiche.

Riv. Aeron., Anno 5, N. 2 (Feb. 1929), Roma, pp. 324-334.

- Nuovi contributi allo studio delle nubi per la navigazione aerea.

Riv. Aeron., Anno 5, N. 11 (Nov. 1929), Roma, pp. 326-335, ill.

- Sulla variazione della colorazione azzurra dell'atmosfera.

Riv. Aeron., Anno 5, N. 5 (Mag. 1929), Roma, pp. 313-319.

- La velocità e la direzione delle correnti aeree al mattino e al pomeriggio.

Riv. Aeron., Anno 5, N. 1 (Gen. 1929), Roma, pp. 63-68, diagr., tabls.

- I venti di tramontana alle varie quote sull'idroscalo di vigna di valle.

Riv. Aeron., Anno 5, N. 12 (Die. 1929), Roma, pp. 512-519.

Ernst and Ernst. Grouping in the aviation industry. Status at the time of going to press.

Scient. Amer., Vol. 141, No. 1 (July 1929), New York, p. 58.

Escherich, K. Die Flugzeugbestäubung gegen Forstschädlinge. Berlin, Verlag Paul Parey, 1929, pp. 60.

Esnault-Pelterie, R. Astronautique et relativité.

L'Aérophile, 37e année, Nos. 9-10 (ler-15 mai 1929), Paris, p. 135.

Esnault-Pelterie, R. Note sur la vitesse de détente d'un gaz, dans une tuyère.

L'Aérophile, 37e année, Nos. 23-24 (ler-15 déc. 1929), Paris, pp. 368-369.

- Une nouvelle formule pour la détermination de la densité atmosphérique

en function de l'altitude.

L'Aérophile, 37e année, Nos. 19-20 (ler-15 oct. 1929), Paris, pp. 308-310, tabls.

F s sers -Kober, J. Untersuchung von Flügelschwingungen im Windkanal.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E, V., Berlin-Adlershof, München, [1929], pp. 345-370, ills., diagrs., tabls.

Eubank, John A. Legal handicap for aircraft.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 175-176.

- Severe damage liability imposed on aircraft.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, pp. 16, 23, port.

- Uniform air laws are imperative.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1959-1960.

- Who owns the airspace?

Current History Magazine of N. Y. Times, Vol. 30 (Apr. 1929), New York, pp. 104-107.

Europe. See Caminez, Harold : Present status of European airplane engines.

- See Casamor, Luis Santomâ: Aeropuertos.

- See Hobbs, William Herbert : The northern flying route to Europe.

- See Townsend, R. T. : Across Europe by air.

European War. See Springs, Elliott White : Above the bright blue sky.

- See Stuart-Wortley, Rothesay: Letters from a flying officer.

Evans, Edward S. The all-metal dirigible ZMC-2.

Aero Digest, Vol.' 15, No. 4 (Oct. 1929), New York, pp. 82-83, 261, ill.

Evans, Robert B. Gliding as a sport.

Aviation,, Vol. 26, No. 8 (Feb. 23, 1929), New York, pp. 562-565, ill.

EvERiiiNG, E., und Benno Splanemann. Der Steigleistungsanteil.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 13, Heft (15. Juli 1929), München, pp. 338-341, diagr., tabls.

Everling, E. Die Wertung der Weltrekorde.

Zeitschr, Flugt. Motorluftsch., 20. Jahrg., 14, u. 15. Heft (31. Juli 1929), München, pp. 394-397.

Ewald. Luftausstellungen in Barcelona und Magdeburg. Die Luftwacht, Heft 6, Juni 1929, Berlin, p. 257.

Ewing, Donald M. Training a thousand air students.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 76-77, ill.

Exhibitions. Wings on display.

Commonweal, Vol. 9 (Mar. 6, 1929), New York, pp. 502-503.

Exports. Exports and imports of aircraft from and into the United States.

Air Commerce Bulletin, Vol. 1, No. 9 (Nov. 1, 1929, Washington, p. 11, tabl. Department of Commerce, Aeronautics branch.

- See Production : Airplane production and export 1909^-1928.

Export Sales. See Fowler, Wesley: Export sales budgets for airplane manufacturers.

Expositions. See Lesage, A. : La XI Exposition Internationale de l'Aéronautique (Paris, 29 juin-15 juil. 1928).

F

Fabrics. See Cleary, Charles J.: Parachute fabrics.

Faenzi, Aldo. II senso muscolare in rapporto all'attitudine al pilotaggio. Riv. Aeron., Anno 5, N. 1 (Gen. 1929), Roma, pp. 68-85.

Fagan, T. Z. No demagnetization. The results of an experiment conducted determine the effect of booster operation on the service magneto. Aviation, Vol. 26, No. 12 (March 23, 1929), New York, p. 883.

Fage, A. The air flow around a circular cylinder in the region where the boundary layer separates from the surface.

Aer. Res. Comm., Rep. Mem., No. 1179, Ae. 343, August 1928, London, 1929, pp. 18, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 148-165, ills., diagrs., tabls.

Fage, A., V. M. Falkner, and W. S. Walker. Experiments on a series of symmetrical Joukowski sections.

Aer. Res. Comm., Rep. Mem., No. 1241 (Ae. 396), April 1929, London, 1929. pp. 19, ills., diagrs., tabls.

Fage, A. On the two-dimensional flow past a body of symmetrical cross-section mounted in a channel of finite breadth.

Aer. Res. Comm., Rep. Mem., No. 1223 (Ae. 378), February 1929, London. 1929, pp. 12, ills., diagrs., tabls.

Aeronautics, Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 314-325,. ills., diagrs., tabls.

- The skin friction on a circular cylinder.

Aer. Res. Comm., Rep. Mem., No. 1231, (Ae. 382), February 1929, London. 1929, pp. 9, diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London. 1929. pp. 189-197, diagrs., tabls.

- See Thorn. A.: The boundary layer of the front portion of a cylinder.

Faherty, Robert E. Shooting at Kentucky with four lenses.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 80, 350, ill.

Fairchild. Fairchild 21 monoplane.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, pp. 82, 84, ill.

- Fairchild 41 monoplane.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, pp. 84, 86, 88, ill.

- Fairchild 71 monoplane.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 104, 106, ill., diagr.

- The new Fairchild planes.

Aviation, Vol. 26, No. 4 (Jan. 26, 1929), New York, pp. 238-242, ill.

Fairchild, Sherman Mills. See Wright, Milton: Builders of the aviation industry.

Fairey. The Fairey long-range monoplane.

The Aeroplane, Vol. 36, No. 5 (Jan. 30, 1929), London, pp. 152, 154, ill. Flight, Vol. 21, No. 5 (Jan. 31, 1929), London, pp. 77-81, ill.

- The Fairey III. F (British). A general-purpose biplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 102, Sept. 30, 1929, Washington, September 1929, pp. 9, ills.

Fairey, C. R. Range of aircraft.

Flight, Vol. 21, No. 42 (Oct. 18, 1929), London, pp. 1122-1125.

Fairlamb, George R., Jr. The how and why of navigation.

Airway Age, Vol. 10, Nos. 5-8, 10 (May-Aug., Oct. 1929), New York, pp. 630-632, 821-825, 990-993, 1202-1207. 1616-1619, ill., diagr.

9573—30-6

Fairthorne, R. A. See Bradfield, F. B., and R. A. Fairthorne : On a method of delaying the opening of an autoslot (wind tunnel experiments).

- See Harris, R. G., and R. A. Fairthorne: Wind tunnel experiments with

infinite cascades of aerofoils.

FÄKLA, Stefan v. Beigungs- und Torsionssteifigkeit des freitragenden Flügels.

Luftfahrtforschung, Berichte, Band 4, Heft 1. München und Berlin, R. Oldenbourg, 1929, pp. 40, ill.

Falkner, V. M. See Bryant, L. W., E. Ower, A. S. Halliday, and V. M. Falkner: On the convection of heat from the surface of an aerofoil in a wind current.

- See Fage, A., V. M. Falkner, and W. S. Walker: Experiments on a

series of symmetrical Joukowski sections.

Falling man. See Parachute: Determination of the rates of descent of a falling man and of a parachute test weight.

Fansler, P. E. The first commercial air line.

Aero Digest, Vol. 15, No. 6 (June 1929), New York, pp. 58-59, 260-268, ill.

Far East. On the Far East flight.

The Aeroplane, Vol. 36, No. 3 (Jan. 16, 1929), London, pp. 69-82, ill.

- Technical aspects of the Far East flight.

The Aeroplane, Vol. 36, No. 10 (Mar. 6, 1929), London, pp. 366-374.

. Faranda, Alberto. Sistema di freno aerodinamico per velivoli. Roma, tip. L. Cecchini, 1929, pp. 4.

Farman. Farman two-engine commercial biplane F. 180 (French).

National Advisory Committee for Aeronautics, Aircraft Circulars No. 88, Jan. 21, 1929, Washington, January 1929, pp. 6, ills.

- Le moteur Farman 9 E a 250 HP refroidi par l'air.

L'Aéronautique (L'Aêrotechnique, 7e année, No. 81), lime année, No. 124 (Sept. 1929), Paris, pp. 302-303, ill.

- See P. L. : Banc d'essai des moteurs refroidis par l'air chez Farman.

Farmer, D. It was a long time coming.

Mentor, Vol. 17 (Sept. 1929), Springfield, Ohio, pp. 34-37, ill.

Farben, W. S. Monoplane or biplane?

Aircraft Engineer suppl. Flight, Vol. 21, No. 9 (Feb. 28, 1929), London, pp. 162d-162h, diagr.

Journ. Roy. Aer. Soc, Vol. 33, No. 223 (July 1929), London, pp. 490-540, ills., diagrs., tabls.

Fassbender, Heinrich, und Georg Kurlbaum. Abhängigkeit der Reichweite sehr kurzer Wellen von der Höhe des Senders, über der Erde.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 230-232, ills.

Fassbender, Heinrich. Die zweckmässigsten Wellen für den drahtlosen Langwellenverkehr mit Flugzeugen.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 107-109, diagrs.

Fassig, Oliver L. On the frequency of hurricanes in the vicinity of Porto Rico.

The Porto Rico Journal of Public Health and Tropical Medicine, Vol. 5, No. 2 (Dec. 1929), San Juan, pp. 106-113, map.

Fatalities. See United States Navy Department: Fatalities in the aviation service of the Navy and Marine corps. Letter from the Secretary of the Navy transmitting in response to Senate resolution No. 296 (Seventieth Congress), a list of fatalities in the aviation service of the Navy and Marine corps during the past five years.

Fatigue of metals. See Jenkin, C. F., and G. D. Lehmann : High frequency fatigue.

Faurote, Fay Leone. New Wright aeronautical engines.

Iron Age, Vol. 124, No. 3 (July 18, 1929), Middletown, N. Y., pp. 148-152, ill.

- A survey of Canadian commercial aviation. An interview with J. A.

Wilson, controller of civil aviation for Canada.

Aviation, Vol. 27, No. 26 (Dec. 28, 1929), New York, pp. 1250-1254, ill.

Favier, Louise-Faure. L'aviation marchande célèbre son Xe anniversaire.

L'Aérophile, 37e année, Nos. 15-16 (ler-15 août 1929), Paris, pp. 238-239, ill.

Fear. Taking the fear out of flying.

Business Week (Sept. 7, 1929), New York, pp. 24-25, ill.

Fedden, A. H. R. Air-cooled engines.

Times Trade and Engineering Supplement, Vol. 24, No. 576 (July 20, 1929), London, p. 12.

- Air-cooled engines in service.

The Aeroplane, Vol. 36, No. 8 (Feb. 20, 1929), London, pp. 261-269, ill. Journ. Roy. Aer. Soc, Vol. 33, No. 220 (April 1929), London, pp. 269-318, ill., diagrs., tabls.

Fédération Aéronautique Internationale. Le congrès constitutif de la Fédération Nationale.

L'Aérophile, 372 année, Nos. 23-24 (ler-15 déc. 1929), Paris, p. 355.

- See Fresnf, Pierre Gasnier du : Une Fédération Nationale Aéronautique

estelle utile?

- See Records : Officiai World and American air records. Established under

the rules and regulations of the Federation Aeronautic Internationale. Translated and compiled by the Contest Committee, National Aeronautic Association, Washington.

Felix. Edgar H. Lighting the airport and the airway.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, pp. 59-62, ill.

Fell, L. F. R. Jacketed cylinder engines.

Times Trade and Engineering Supplement, Vol. 24, No. 576 (July 20, 1929), p. 13.

Fenton, G. B. Estimation of the length of run required to take off.

Aircraft Engineer suppl. Flight, Vol. 21, No. 22 (May 30, 1929), London, pp. 446a-446d, charts.

Ferguson, H. C. See Mullett, M. B. : From the ground up ; interview with H. C. Ferguson.

Fewster, T. H. A dash-pot for use in spinning experiments on a model aerofoil.

Aer. Res. Comm., Rep. Mem., No. 1208, (Ae. 369), November 1928, London, 1929, pp. 2, ills.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 854-855, ills.

Fiat. II Fiat A-50 (85-90 c. v.)

Riv. Aeron., Anno 5, N. 1 (Gen. 1929), Roma, pp. 86-94, ills., diagrs., tabl.

- The Fiat " A. S. I."

Plight, Vol. 21, No. 20 (May 16, 1929), London, p. 400, ill.

Field rules. See Ordinance: Suggested uniform ordinances and field rules.

Fields. Department of Commerce intermediate fields.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, pp. 16-19. Department of Commerce, Aeronautics branch.

Financing. See Parker, Willis: The financing of aircraft sales.

Finney, B. Mass production methods used in airplane plant.

Iron Age, Vol. 124, No. 1 (July 4, 1929), Middletown, N. Y., pp. 1-5, ill.

Fins. See Lepere, Georges: Abaque pour le calcul de l'empennage horizontal d'un avion.

Fioeavanzo, G. Resistere sulla superficie per far massa nell'aria.

Riv. Aeron., Anno 5, N. 7 (Luglio 1929), Roma, pp. 58-73.

Fioke, Amedeo. II paracadute italiano. I suoi successivi perfezionamenti. Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 484-502, ill.

Fiee. Aircraft fire extinguishers.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 214-216, ill.

- Fire protection and its organization.

Domestic Air News, Serial No. 48, March 15, 1929, Washington, pp. 8-9. Department of Commerce, Aeronautics branch.

- See Electricity: Electrical fire hazards on airplanes. .

- See McCord, C. G.: Preventing and extinguishing aircraft fires.

- See Newell, H. E.: Fire protection for municipal airports.

- See Sabatier, J.: Fire prevention on airplanes.

- See Sandwell, Arnold H.: Planes fight fire in Canada.

Fisher, R. E. Selling aeronautics to the public.

Aviation, Vol. 26, No. 2 (Jan. 12, 1929), New York, pp. 103-105, ill.

Fishing fleet. See Gilligan, E.: Wings for the fishing fleet.

Fitzpatrick, James R. Ply wood in aircraft construction.

Aviation, Vol. 26, No. 3 (Jan. 19, 1929), New York, pp. 166-167, ill.

Flachsbart, O., und G. Kröber. Experimentelle Untersuchungen an schräg angeblasenen Schraubenpropellern.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 23. Heft (14. Dez. 1929), München, pp. 605-614, ills., diagrs.

Flader, Frederic. Weight control in the design of aircraft.

Aviation, Vol. 27, Nos. 7, 16 (Aug. 17, Oct. 19, 1929), New York, pp. 360-363, 820-825.

Flamingo. The Flamingo G-2-W.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 94, 96, ill.

- A new American all-metal commercial monoplane.

The Aeroplane, Vol. 36, No. 20 (May 15, 1929), London, p. 810, ill.

Flanders, L. Howard. The press visit to R100.

The Aeroplane, Vol. 37, No. 23 (Dec. 4, 1929), London, pp. 1292-1298, ill.

- The visit to R101.

The Aeroplane, Vol. 37, No. 15 (Oct. 9, 1929), London, pp. 907-912, ill.

Flandin, P. Fl Lettre ouverte à M. le Ministre de l'Air.

L'Aérophile, 37e année, Nos. 3-4 (ler-15 fév. 1929), Paris, pp. 35-36, port.

-. Le meeting de La Baule.

L'Aérophile, 37e année, Nos. 17-18 (ler-15 sept. 1929), Paris, p. 266.

Fliedner, C. S. Condensed data on the aircraft engines of the world.

National Advisory Committee for Aeronautics, Technical Notes No. 303, April 30, 1929, Washington, April 1929, pp. 15, tabls.

Flight tests. See Hübner, W. : Information obtained from airplane flight tests in the year 1927-1928.

Floats. See Karman, Th von : The impact on seaplane floats during landing.

Florain, John W. Flying courtesy. Who seeks to prove the theory that there are two sides to every story.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 14, 52, port.

Flow. See Lamb, H. : On the flow of a compressible fluid past an obstacle.

- See Taylor, G. I., and C. F. Sharman : A mechanical method for solving

problems of flow in compressible fluids.

- See Taylor, G. I., and C. F. Sharman : Report on progress during 1927-28

in calculation of flow of compressible fluid, and suggestions for further work.

- See Thorn, A. : An investigation of fluid flow in two dimensions.

Flow equations. See Zahm, Albert Francis: Flow and force equations for a body revolving in a fluid.

Flowmeters. See Kerr, P. S. : Fuel flowmeters designed to measure mass flow.

- See Penn, R. J., and W. C. Cooper : The use of the flowmeter in obtaining

fuel economy.

- See Rolinson, D. : Appendix A. Tests of mass flow type fuel flowmeter

at aeroplane and armament experimental station, Martlesham Heath.

Fluid motion. See Fage, A. : The air flow around a circular cylinder in the region where the boundary layer separates from the surface.

- See Fage, A. : The skin friction on a circular cylinder.

- See Glauert, H. : The accelerated motion of a cylindrical body through

a fluid.

- See Glauert, H. : The characteristics of a Kârmân vortex street in a

channel of finite breadth.

- See Glauert, H. : The effect of the static pressure gradient on the drag

of a body tested in a wind tunnel.

- See Glauert, H. : A theoretical estimate of the pressure gradient in a wind

tunnel.

- See Lamb, H. : The hydrodynamic forces on a cylinder moving in two

dimensions.

- See Lamb, H. : Note on the forces experienced by ellipsoidal bodies placed

unsymmetrically in a converging or diverging stream.

- See Lamb, H. : On the flow of a compressible fluid past an obstacle.

- See Stanton, T. E. : On the effect of air compression on drag and pressure

distribution in cylinders of infinite aspect ratio.

Fluid motion. See Taylor, G. I. : The force acting on a body placed in a curved arid converging stream of fluid.

- See Taylor, G. I., and C. F. Sharman : A mechanical method for solving

problems of flow in compressible fluids.

- See Taylor, G. I., and C. F. Sharman : Report on progress during 1927-28

in calculation of flow of compressible fluid, and suggestions for further work.

- See Thorn, A. : The boundary layer of the front portion of a cylinder.

- See Thorn, A. : An investigation of fluid flow in two dimensions.

--See Zahm, Albert Francis : Flow and force equations for a body revolving

in a fluid.

Flutter. See Frazer, R. A. : The flutter of aeroplane wings.

- See Frazer, R. A., and W. J. Duncan : The flutter of aeroplane wings.

- See Lynam, E. : Notes on the flutter of airscrew blades.

- See Spencer, K. T., and D. Seed : Comparison of calculated and measured

elasticity of the wings of an aircraft, in connection with the investigation of wing flutter.

Fluttering. See Scheubel, F. N. : Fluttering of the tail surfaces of an airplane and the means of its prevention.

Flying. The art of flying.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1034-1036.

- Flying as a profession.

Flight, Vol. 21, No. 8 (Feb. 21, 1929), London, pp. 137-138.

Flying boats. Dinghies for flying boats.

Scient. Amer., Vol. 140 (Mar. 1929), New York, p. 258.

- Rohrbach Romar.

Scient. Amer., Vol. 140 (Jan. 1929), New York, p. 72, diagr.

- See Klemin, Alexander : Learning to use our wings. Dinghies for flying

boats.

- "See Seaplanes.

Flying clubs. See Warner, Edward P. : N. A. A. launches private flying clubs. Grant of $12,000 by Guggenheim Fund enables plan to become effective at once.

Flying courtesy. See Andrews, Marshall : A reply to " Flying courtesy." A working newspaperman speaks his mind about the story in the November issue of the Aeronautic Review.

- See Florain, John W. : Flying courtesy. Who seeks to prove the theory

that there are two sides to every story.

Flying Dutchman. The Flying Dutchman.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, p. 92, ill.

Flying fishes. See Sulejkin, V. : L'aérodynamique des poissons volants.

Flying schools. See United States Department of Commerce. Aeronautics branch : Regulations relating to the rating of flying schools.

Focke-Wulf. Focke-Wulf " Kiebitz."

Flight, Vol. 21, No. 16 (Apr. 18, 1929), London, pp. 320-321, ill.

Fog. Aviation's victory over fog.

Literary Digest, Vol. 103 (Oct. 5, 1929), New York, p. 14.

- Conquering fog.

Review of Reviews, Vol. 80 (Nov. 1929), New York, pp. 140-142.

- Fog flying school.

Pop. Mech., Vol. 52 (Aug. 1929), Chicago, pp. 250-253, ill.

- Guggenheim fog flying experiments.

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, p. 74, ill.

- Neon lamp visibility through fog.

Domestic Air News, Serial No. 49, March 30, 1929, Washington, pp. 6-7. Department of Commerce, Aeronautics branch.

- Seek fog-penetrating light.

Journ. Amer. Inst. Electrical Engineers, Vol. 48, No. 12 (Dec. 1929), New York, p. 877.

- See Amick, Hugh: Electrical eye that will see through fog.

- See Goldstrom, John: A passenger looks at fog.

- See Guggenheim, Harry F.: N. A. A. lauds Guggenheim and Doolittle for

fog-flying success. t

- See Lighting: Fog penetrating lights.

- See McAddie, Alexander: Clouds and fog. Something about which every

young aviator should know.

- See Watt, W. H.: Blinded by fog.

Fokker. The control of the Fokker F. VII.-3M aeroplane. Interim report by the stability and control panel, with an appendix giving precis of pilots' reports.

Aer. Res. Comm., Rep. Mem, No 1236 (Ae 391), March, 1927, London, 1929, p. 5, tabl.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 664-668, tabl.

- Fokker F-ll Amphibian.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, p. 74, ill.

- The Fokker FH monoplane amphibian.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 13 (Mar. 27, 1929), London, p. 494, ill.

-■ The Fokker F-32 transport monoplane.

Aviation, Vol. 27, No. 19 (Nov. 9, 1929), New York, pp. 926-930, ill., diagr.

- 32-place Fokker is more than was promised.

U. S. Air Service, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 50-51, ill.

- See Hardy, J. K.: Full scale control tests on Fokker F. VII 3M monoplane.

Fokker, A. H. G. See Wright, Milton: Builders of the aviation industry.

Foord, F. A. The lubrication of aircraft engines.

Journ. Roy. Aer. Soc, Vol. 33, No. 228 (Dec. 1929), London, pp. 1089-1132, ills.

Force equations. See Zahm, Albert Francis: Flow and force equations for a body revolving in a fluid.

Force measurements. See Seewald, F.: Force measurements on airplanes.

Ford. See Nevill, John T.: Ford Motor Company and American aeronautic development.

Ford, G. B. Airport and the city plan.

American City, Vol. 40 (Mar. 1929), New York, pp. 129-130.

Ford Motor Company. See Nevill, John T. : Ford Motor Company and American aeronautic development.

Forest patrol. A brief history of airplane forest patrol. First operations with army cooperation.

Air Commerce Bulletin, Vol. 1, No. 2 (July 15, 1929), Washington, pp. 12-14. Department of Commerce, Aeronautics branch.

Fort Worth. See Fuller, W. : Install lighting system at Fort Worth airport.

Foss, Charles W. Merger groupings in aviation.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 424-427, ill.

Foucault, André. Sur la ligne. Le Pilote.

L'Aérophile, 37e année, Nos. 5-6 (ler-15 mars 1929), Paris, pp. 69-71.

Foulois, Benjamin D. See Klemin, Alexander: Learning to use our wings. * * * Our first army air pilot.

- See Wright, Milton : Builders of the aviation industry.

Fourcade, H. G. A new method of aerial surveying. (Third paper.)

Transactions of the Royal Society of South Africa. Vol. 18, Part 3 (Dee. 1929), Cape Town, pp. 237-246, ill.

Fournier, F. E. Observations sur le tour du monde par le Graf-Zeppelin C. R. Acad. Sei., T. 189, No. 9 (26 août (1929), Paris, p. 26.

Fowler, Wesley. Export sales budgets for airplane manufacturers.

Aviation, Vol. 26, No. 17 (Apr. 27, 1929), New York, pp. 1434-1430.

Fox, Gracia. See Hood, Evelyn: An aviator.

Frachet, André. The Morane Saulnier 222 airplane (French). A single-seat pursuit monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 106, Dec. 31, 1929, Washington, December 1929, pp. 4, ills. From Les Ailes, June 6, 1929.

Fradiss, Jean, and Armand Thieblot. Analysis of the wing and other indeterminate structures.

Aviation, Vol. 26, No. 24 (June 15, 1929), New York, pp. LXXXVI-XC, ill Vol. 27, Nos. 3, 12 (July 20, Sept. 21, 1929), New York, pp. 195-202, 644-645, charts.

France. Le budget de l'aéronautique.

L'Aérophile, 37e année, Nos. 1-2 (ler-15 Jan. 1929), Paris, pp. 6-8.

- French long-distance flights.

Flight, Vol. 21, No. 50 (Dec. 13, 1929), London, pp. 1310-1311, ill.

- A propos de la " décentralisation " de l'industrie aéronautique.

L'Aéronautique, lime année, No. 119 (avril 1929), Paris, pp. 106-108, ill.

- IIIe tableau de l'aéronautique Française.

L'Aéronautique, lime année, No. 122 (juil. 1929), Paris, pp. 214-244, ill.

- See Ali, A. H. Y. : French private flying.

- See Blanchet, Georges : Le rallye transat de l'Aéro-Club de France.

-■ See Franck, P. : Recent progress of aeronautical science in France.

- See Lamarche, Paul E., Jr. : The light airplanes of France.

- See Lapresle, A. : French wind tunnel methods.

France. See Oger, Marcel : Les projets de l'aviation marchande française pour l'année 1929.

- See Oger, Marcel : Le statut de l'aviation marchande française.

- See Seyffardt, H. A. : Die Lage der französischen Luftfahrt und das neue

Luftministerium.

- See White, Henry J. : Blind Aying instruction in France.

- See Wind tunnels : French wind tunnel methods.

Franck, P. Recent progress of aeronautical science in France.

Journ. Roy. Aer. Soc., Vol. 33, No. 226 (Oct. 1929), London, pp. 915-934, ills.

Frank, Gerhardt W. High temperature liquid cooling.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 26 (June 26, 1929), London, p. 1069.

Aviation, Vol. 26, No. 22 (June 1, 1929), New York, pp. 1877-1878, ill.

ITrazer, R. A. The flutter of aeroplane wings.

Journ. Roy. Aer. Soc, Vol. 33, No. 222 (June 1929), London, pp. 407-454, ills., diagrs., tabls.

Frazer, R. A., and W. J. Duncan. The flutter of aeroplane wings.

Aer. Res. Comm., Rep. Mem., No. 1155 (Ae. 320), August 1928, London, 1929, pp. 218, ills., diagrs., tabls.

- Wing flutter as influenced by the mobility of the fuselage.

Aer. Res. Comm., Rep. Mem., No. 1207 (Ae. 368), September 1929, London, 1929, pp. 33, ills., diagrs., tabls.

Free, E. E. Lighting them down.

World's Work, Vol. 58 (June 1929), Garden City, pp. 74-75, ill.

Freeman, Andrew A. Aviation in* Siam.

Aviation, Vol. 26, No. 12 (March 23, 1929), New York, pp. 891-893, ill.

Freeman, Harry Joseph. Municipal airports as a "public purpose." Article prepared for the use of the Aeronautical Chamber of Commerce of America. Washington, United States Government Printing Office, 1929, pp. 5. 71st Congress, 1st session. Senate. Doc. 12.

Freeman, Talbot O. What price merger?

Aviation, Vol. 27, No. 23 (Dec. 7, 1929), New York, pp. 1105-1107.

French, Joseph Lewis. The big aviation book for boys, introduction by Commander Richard E. Byrd.

Springfield, Mass., McLaughlin Bros., inc., [1929], pp. 284, ills., map.

Fresnf, Pierre Gasnier du. Une Federation Nationale Aéronautique est-elle utile?

L'Aérophile, 37e année, Nos. 1-2 (ler-15 jan. 1929), Paris, p. 16.

Friez. See Instruments: The story of Friez instruments.

Fritsch. See Landing gear : Fritsch landing gear.

Fritsche, Carl B. The metalclad airship.

Mech. Eng., Vol. 51, No. 12 (Dec. 1929), New York, pp. 905-911, ill.

Frye, W. Jack. Building a dealer organization.

Aviation, Vol. 27, No. 4 (July 27, 1929), New York, pp. 216-219, ill.

Fuchs, Richard, und Wilhelm Schmidt. Stationärer Trudelflug.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München [1929], pp. 157-174, ills., diagrs.

Fucini, Mario. Ancora in tema di velivoli giganti.

Riv. Aeron., Anno 5, N. 12 (Die. 1929), Roma, pp. 418-427.

Fucini, Mario. Formazioni ed apparecchi pesanti.

Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 75-86.

- Scomparirà il monoposto?

Riv. Aeron., Anno 5, N. 2 (Feb. 1929), Roma, pp. 277-287.

- Uno sguardo all'impiego dell'aviazione da caccia nel passato e nel futuro.

Riv. Aeron., Anno 5, N. 10 (Ott. 1929), Roma, pp. 48-83, ill.

- Velivoli giganti e monoposti.

Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 264-268.

Fuel. Aircraft fuelling.

Flight, Vol. 21, No. 40 (Oct. 4, 1929), London, p. 1080, ill.

- Airplane fuel from the air.

Literary Digest, Vol. 102 (Sept. 7, 1929), New York, p. 20.

-. Fuel and oil supply for the private owner.

Flight, Vol. 21, No. 43 (Oct. 25, 1929), London, pp. 1136-1138, ill.

- Fuel extraction from air is inventor's claim.

Pan American Magazine, Vol. 42 (Oct. 1929), Washington, D. C, p. 78.

- Fuel gas for airships.

Ind. Eng. Chem., Vol. 21, No. 12 (Dec. 1929), Washington, D. C, p. 1156.

- See Campbell, Hayden, S. : Refueling from the ground.

—— See Carr, Marvin S., and George Granger Brown: Gaseous explosions. VII—Effect of tetraethyl lead on rate of rise of pressure.

- See Grebel, A. : " Safety " fuels for aircraft engines.

- See Hersey, Mayo D. : Viscosity of Diesel engine fuel oil under pressure.

—— See Joachim, William F., and A. M. Rothrock : Fuel vapor pressures and the relation of vapor pressure to the preparation of fuel for combustion in fuel injection engines.

- See Kerr, P. S. : Fuel flowmeters designed to measure mass flow.

- See Masson, Henry James, and William F. Hamilton: A study of auto-ignition temperatures. Ill—(a) Mixtures of pure substances, (b) Gasolines.

- See Pahl, H. : Effect of oxygen on the ignition of liquid fuels.

- See Penn, R. J., and W. C. Cooper: The use of the flowmeter in obtaining

fuel economy.

- See Petrol: Petrol from coal.

- See Rolinson, D. : Appendix A. Tests of mass flow type fuel flowmeter at

aeroplane and armament experimental station, Martlesham Heath.

- See Schaad, Raymond E., and Cecil E. Boord : Effects of knock-suppressing and knock-inducing substances on the ignition and partial combustion of certain fuels.

- See Schey, Oscar W. : The effect of fuel consumption on cylinder temperatures and performance of a cowled Wright J-5 engine.

- See Souders, Mott, jr., and George Granger Brown. Gaseous explosions.

VIII—Effect of tetraethyl lead, hot surfaces, and spark ignition on flame and pressure propagation.

- See Stevens, F. W. : The gaseous explosive reaction—a study of the

kinetics of composite fuels.

Fuetteber, E. O. Luftfahrt in China.

Illustrierte Plug-Woche, 11. Jahrg., Heft 1, 1929, Berlin-Lichterfelde, pp. 3-6,

ill.

Fuller, W. Install lighting system at Fort Worth airport.

American City, Vol. 40 (June 1929), New York, p. 148, ill.

FuLLERTON, Frederick H. The " Helioplane." Developed by resident of New Westminister, B. C. (J. H. Hess).

Canadian Aviation, Vol. 2, No. 2 (Feb. 1929), Toronto, p. 20.

Fur industry. See Chicanot, E. L. : The aeroplane in the fur industry.

Fuselage. Novel fuselage construction.

Scient. Amer., Vol. 140 (Apr. 3 929), New York, pp. 360-362, ill.

- See Ebner, Hans: Zur Berechnung räumlicher Fach werke im Flugzeugbau.

- See Frazer, R. A., and W. J. Duncan : Wing flutter as influenced by

the mobility of the fuselage.

- See James, Ivor E. : A simple method of constructing and dimensioning

elliptic fuselage sections.

- See Margoulis, W. : Détermination expérimentale des tensions dans les

charpentes d'avions.

- See Margoulis, W. : Sur la détermination expérimentale des tensions

dans les charpentes des avions.

- See Mathar, J. : On the strength of box-type fuselages.

- See Muttray, H. : Investigation of the effect of the fuselage on the

wing of a low-wing monoplane.

- See Ober, Shatswell : Some studies on the aerodynamic effect of the gap

between airplane wings and fuselages.

- See Pollard, H. J. : Metal construction development. Part I : General.

Strip metal construction-fuselage. Part II : Strip metal construction-wing spars. Part III : Workshop practice. Strip metal construction-wing ribs. Part IV: Moments of inertia of thin corrugated sections.

- See Rodger, R. : Rapid plotting of elliptic fuselage sections.

- See Seydel, Edgar: Ermittlung der Stabkräfte im Flugzeug-Fachwerk-Rumpf.

G

G., C. G. On monoplanes and biplanes.

The Aeroplane, Vol. 36, No. 6 (B'eb. 6, 1929), London, pp. 185-192.

- On national flying services.

The Aeroplane, Vol. 36, No. 7 (Feb. 13, 1929), London, pp. 225-232.

Gabrielli, Giuseppe. Torsional rigidity of cantilever wings with constant

spar and rib sections.

National Advisory Committee for Aeronautics, Technical Memorandums No. 520, June 5, 1929, Washington, July 1929, pp. 39, diagrs. From Luftfahrtforschung, June 26, 1928.

Gale, Charles H. The first national airport conference.

Aviation, Vol. 26, No. 22 (June 1, 1929), New York, pp. 1879-1880.

- The road builders consider municipal airports.

Aviation, Vol. 27, No. 18 (Nov. 2, 1929), New York, pp. 883-886, ill.

Gammack, T. H. Aeronautical industry soars.

Outlook, Vol. 152 (July 10, 1929), New York, p. 429.

Gannett, W. H. Blimps.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 22, 42, ill.

- Flying in the West Indies. A pioneer air traveler extends a hand to the

younger generation.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, pp. 9-12, ills.

Gap. See Ober, Sahtswell : Some studies on the aerodynamic effect of the gap between airplane wings and fuselages.

Garagozzo, F. Carattere della responsabilità aeronautica e tutela dei terzi danneggiati da velivoli civili o militari.

Riv. Aeron., Anno 5, N. 3 (Marzo 1929), Roma, pp. 577-591.

Gardenghi, Pio. Appunti sulla Crociera aerea nel Mediterraneo Orientale e Mar Nero (5-19 giugno 1929).

Riv. Aeron., Anno 5, N. 7 (Luglio 1929), Roma, pp. 1-30.

Garner, H. M., and K. V. Wright. The longitudinal control of an aeroplane beyond the stall.

Aer. Res. Comm., Rep. Mem., No. 1193 (Ae. 355), May 1928, London, 1929, pp. 6, tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 694-699, tabls.

- On the use of a follow up mechanism in aerodynamic servo control

systems.

Aer. Res. Comm., Rep. Mem., No. 1187 (Ae. 349), May 1928, London, 1929, pp. 8, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 686-693, diagrs.

Garrigues, Pierre. Les installations modernes d'essai des moteurs.

L'Aéronautique, lime année, No. 116 (Jan. 1929), Paris, pp. 3-6, ill.

Gasoline. See Condon, Glenn: Know your gasoline.

- See Masson, Henry James, and William F. Hamilton: A study of auto-ignition temperatures. Ill—(a) Mixtures of pure substances, (b) Gasolines.

- See Steele, Dudley M. : Gasoline servicing at airports.

Gases. See Bottoms, R. R. : The production and uses of helium gas.

Gastob, W. L. See Clark, S. C, and W. L. Gastob: The welding of stamped and formed airplane parts.

Gasturbines. See Schulz, R. : Die Lorenzen-Abgasturbine. Ein neuartiger Turbinen-Vorverdichter fiir Hohenmotoren.

Gates, S. B. An analysis of a rectangular monoplane with hinged tips.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 257-266, diagrs., tabi.

- Notes on longitudinal stability at stalling in gliding flight.

Aer. Res. Comm., Rep. Mem., No. 1189 (Ae. 351), July 1928, London, 1929, pp. 7, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 629-635, diagrs.

Gates, S. B., and H. B. Howard. On the maximum load in pulling out from vertical dives.

Aer. Res. Comm., Rep. Mem., No. 1232 (Ae. 387), November 1928, London, 1929, pp. 9, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929. pp. 910-918, diagrs.

Gates, S. B. See Glauert, H., and S. B. Gates : The characteristics of a tapered and twisted wing with sweep-back.

Gatty, H. C. How to swing your compass.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 623-624.

Gavaldá, José M. a de. El nuevo y rápido trasatlántico " Bremen."

Ibérico, Año 16, Num. 796 (5 oct. 1929), Barcelona, pp. 193, 200-203, ill.

Gavino, Virgilio. L'attacco a volo rasente contro navi.

Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 58-67.

Gay de Montella, Raphael. Les leyes de la aeronautica Barcelona, Libreria Bosch.

Gayler, Marie L. V., and G. D. Preston. The age hardening of some aluminium alloys.

Aer. Res. Comm., Rep. Mem., No. 1220, (M. 60), October 1928, London, 1929, pp. 33, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929. pp. 993-1025, ills., diagrs., tabls.

Gazley, Richard C. Fundamentals of airplane fitting design.

Aeronautical Engineering Section, Aviation, Vol. 26, No. 11 (Mar. 16, 1929). New York, pp. XXXIV-XXXIX, ill., diagr.

Geisse, J. H. Gauging engine performance.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 126, 128, chart.

- Installation and care of aircraft engines.

Aviation, Vol. 26, No. 13 (March 30. 1929), New York, pp. 960-962, ill.

General Airplanes. The General Airplanes "Aristocrat " cabin monoplane.

Aviation, Vol. 26, No. 24 (June 15, 1929), New York, pp. 2066-2069, ill., diagr.

- The General Aristocrat.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 116, 118, 120, 122, ill., diagr.

Genet. " Genet " engine produced by Fairchild.

u. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, D. c, p. 42.

Geneva. On the aero show at Geneva.

The Aeroplane, Vol. 36, No. 18 (May 1, 1929), London, pp. 696-708, ill., diagr.

Geography. See Baschin, Otto : Luftfahrt und Geographic

George, Lloyd. The college market for aircraft.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 670-672, ill.

- The need for capturing export markets.

Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, pp. 306-310, ill.

- The pilot in the sales picture.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 454-455, ill.

Georgia. See Dunlap, William Allan: Georgia air tour. Aeronautical interest and activity sweeps the state as the starting day approaches.

- See Noble, N. S. : Georgia tour succeeds.

Georgii, Walter. Ergebnisse der Segelflugwettbewerbe 1928.

Zeitsch. Flugt. Motorluftsch., 20. Jahrg., 3. Heft (14. Feb. 1929), München, pp. 57-65, ills., diagrs., maps.

- Veröffentlichungen des Forschungs-Institutes des Rhön-Rossitten-Gesellschaft. No. 1, Jahrbuch 1927. No. 2, Jahrbuch 1928 und Abhandlungen. No. 3, Beobachtungsergebnisse aerologischer Flugzeugaufstiege in Darmstadt und auf der Wasserkuppe in der Rhön. Dez. 1927-Dez. 1928.

München und Berlin, R. Oldenbourg, pp. No. 1, 44 ; No. 2, 80 ; No. 3, 20.

Germany. Le blocus de L'Angleterre par l'aviation allemande. Le Raincy (S.-et-O.)

- German air subsidies.

Flight, Vol. 21, No. 16 (Apr. 18, 1929), London, p. 315.

- Germany's plans for the future.

The Aeroplane, Vol. 37, No. 25 (Dec. 18, 1929), London, pp. 1395, 1396, ill.

- Un nouveau ballon captif allemand.

L'Aérophile, 37e année, Nos. 3-4 (ler-15 fév. 1929), Paris, p. 43, ill.

- La propagande en Allemagne.

L'Aérophile, 37e année, Nos. 19-20 (ler-15 oct. 1929), Paris, p. 301, ill.

- See Brandenberg: The status of German civil aeronautics.

- See Heinze, Edwin P. A. : Light airplanes of Germany.

- See Luraghi, Giuseppe: Note sull'aviazione commerciale Germanica.

—— See Marolies, R.-J. de : Le Salon allemand d'aéronautique.

- See Ranke, H. H. von : Transporting freight by air in Germany.

- See Schulz, R. : Die englische Luftindustrie und ihre Bezeihungen zur

deutschen Luftfahrt.

- See Sprague, F. Desmond: The German air lines.

- See Wronsky, Martin : Englische und deutsche Luftverkehrspolitik.

- See Ybarra, T. R. : German planes and war aces.

Giacomelli, Raffaele. L'esposizione internazionale aeronautica di Londra (16-27 Luglio 1929).

Riv. Aeron., Anno 5, N. 9 (Sett. 1929), Roma, pp. 514-539, ill.

- An historical survey of Italian aeronautics.

Journ. Roy. Aer. Soc, Vol. 33, No. 226 (Oct. 1929), London, pp. 947-964, ills.

Giese, E. Riesen-Rotor-Luftfahrzeuge.

Berlin, Dierig und Siemens, 1929, pp. 58.

Gilbert, Ernst. Atmungsphysiologische Betrachtungen bei grossen Höhen.

Zeitschr. Flugt. Motorlufsch., 20. Jahrg., 14. u. 15. Heft (31. Juli 1929), München, pp. 390-393.

Gilbert, Eugène. See Bontemps, Arnold : Eugène Gilbert. Sa vie—ses évasions—sa mort.

Gilligan, E. Wings for the fishing fleet.

Pop. Mech., Vol. 52 (Oct. 1929), Chicago, pp. 610-614, ill.

Gillmore, William E. Industrial war planning in the Army Air Corps.

U. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, D. C, pp. 30-33, ill.

- Industrial war plans. Why the Army Air Corps seeks the aid of the

industry for National Defence.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, pp. 13, 30, port.

Ginocchietti, Angelo. II tiro délie unità complesse aeree-Tiro a puntamento individuale o tiro simultanée?

Riv. Aeron., Anno 5, N. 1 (Gen. 1929), Roma, pp. 50-62, ill.

Gipsy. The reliability of the D. H. Gipsy engine.

The Aeroplane, Vol. 37, No. 17 (Oct. 23, 1929), London, pp. 995-996, ill.

- 600 hours without overhaul. D. H. " Gipsy " engine's record.

Flight, Vol. 21, No. 42 (Oct. 18, 1929), London, pp. 1113-1114, ill.

Gipsy-Moth. Luxurious private aircraft.

Flight, Vol. 21, No. 10 (Mar. 7, 1929), London, pp. 190-191, ill.

Girders. See Tellers, H.: Effect of stressed covering on strength of internal girders of a wing.

- See Wagner, Herbert: Remarks on airplane struts and girders under compressive »and bending stresses.

Glassman, Don. The black sheep of aviation. Our aerial life preservers are deserving of a geneological record—and here it is.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 23-24, 30, ill.

- Facts and fables. The anatomy and histology of caterpillars.

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 38, 58, port., ills.

Glauert, H. The accelerated motion of a cylindrical body through a fluid.

Aer. Res. Com., Rep. Mem., No. 1215 (Ae. 374), January 1929, London, 1929, pp. 10.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 118-127.

- The characteristics of a Kärmän vortex street in a channel of finite

breadth.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 62-75, ill.

Glauert, H., and C. N. H. Lock. Characteristics of an autogyro.

Aviation Engineering, Vol. 2, No. 5 (May 1929), New York, pp. 9-10, ill.

Glauert, H., and S. B. Gates. The characteristics of a tapered and twisted wing with sweep-back.

Aer. Res. Comm., Rep. Mem., No. 1226 (Ae. 381), December 1928, London, 1929, pp. 19, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929. pp. 267-285, ills., diagrs., tabls.

Glauert, H. The effect of the static pressure gradient on the drag of a body tested in a wind tunnel.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, 1929, pp. 81-92, ill.

- The force and moment on an oscillating aerofoil.

Aer. Res. Comm., Rep. Mem'., No. 1242 (Ae. 397), March 1929, London, 1929, pp. 17, diagrs., tabls.

- Die Grundlagen der Tragflügel- und Luftschraubentheorie. Übersetzt von

H. Holl.

Berlin, Julius Springer, 1929, pp. vi+ 202, diagrs., tabls.

- The lift and pitching moment of an aerofoil due to a uniform angular

velocity of pitch.

Aer. Res. Comm., Rep. Mem., No. 1216 (Ae. 375), November, 1928, London, 1929, pp. 9, ills., diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 636-644, ills., diagrs.

- A theoretical estimate of the pressure gradient in a wind tunnel.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 93-103, tabls.

- On the horizontal flight of a helicopter.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 612-623, diagrs., tabls. (R. & M. No. 1157.)

t

Glatjert, H., and C. N. H. Lock. A summary of the experimental and theoretical investigations of the characteristics of an autogyro.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929. pp. 624-628. (R. & M. No. 1162.)

Gleeson, G. W. See Graf, S. H., and G. W. Gleeson: Adjustment of automotive carburetors for economy.

Glenny and Henderson. The Glenny and Henderson monoplane.

The Aeroplane, Vol. 36, No. 19 (May 8, 1929), London, pp. 755-758, ill.

Gliders. The gliding movement.

The Aeroplane, Vol. 37, No. 21 (Nov. 20, 1929), London, p. 1208.

- Gliding on the wings of the wind.

Pop. Mech., Vol. 52 (Oct. 1929), Chicago, pp. 546-551, ill.

- On motorless flying.

The Aeroplane, Vol. 37, No. 19 (Nov. 6, 1929), London, pp. 1089-1096, ill.

- Rhoen glider competition.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 64, 252, diagr.

- What Germany has learned in soaring flight.

Literary Digest, Vol. 101 (June 15, 1929), New York, pp. 18-19, ill., diagr.

- See James, Edmund : How I built my glider. An amateur tells of his successful experiment in constructing and flying a glider.

- See Rochford, Daniel: What it is like to fly a glider.

Glides. See Nutt, A. E. Woodward: Inclusion of partial glides in routine performance tests.

Gliding. Gliding activities at the National Air Races.

Aviation, Vol. 27, No. 12 (Sept. 21, 1929), New York, pp. 603-605, ill.

- See Blunk, F. M.: Gliding is revived in America.

- See Evans, Robert B.: Gliding as a sport.

-- See Hartsell, H.: Dynamics of soaring flight.

- See Gates, S. B.: Notes on longitudinal stability at stalling in gliding

flight.

- See Georgii, Walter: Ergebnisse der jSegelflugwettbewerbe 1928.

- See Germany: La propagande en Allemagne.

- See Lippisch, A.: Technischer Bericht des Rhön-Segelflug-Wettbewerbs

1928.

- See Ross, L. F.: Gliders to compete at the National Air Races.

Gloeckner, Heinrich. Der Bordpeilempfänger im Flugzeug.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München [1929], pp. 233-244, ills., diagrs., tabls.

Gloster. The Gloster S. S. 8.

Flight, Vol. 21, No. 49 (Dec. 6, 1929), London, pp. 1273-1274, ill.

- " Gloster " survey .machine.

Flight, Vol. 21, No. 44 (Nov. 1, 1929), London, pp. 1158-1159, ill.

Glues, See Douglas, Wm. D., and C. B. Pettifor: The testing of adhesives for timber.

Goebel, Arthur C. Art Goebel's own story.

[Kansas City, Mo., 1929], pp. 36, ills.

Goldbeater skins. Goldbeater skins for airships.

Scient. Amer., Vol. 141, No. 5 (Nov. 1929), New York, pp. 435, 451, ill.

Golden Eagle. Golden Eagle C-5.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New* York, p. 80, ill., diagr.

Goldstein, S. On vortex theory of screw propeller.

Proceedings of the Royal Society, Vol. A123, No. A792 (April 1929), London, pp. 440-465.

Goldstrom, John. Aviation and the newspapers.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 46-49.

- A passenger looks at fog.

U. S. Air Services, Vol. 14, No. 11 (Nov. 1929), Washington, D. C, pp. 30, 32-33.

Gonin. See Doisy, Pelletier, Gonin, et Vigroux : Le tour de la Méditerranée à bord d'un avion Amoit.

Gonin, Claude. See Blanchet, Georges: Aviateurs contemporains. Claude Gonin.

Goodcell, F. Aerial photography, a new business.

Photo Era, Vol. 62 (Mar. 1929), Wolfeboro, N. H., pp. 145-147, ill.

Goodman-Crouch, R. J. Air races and handicapping.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 395-399, ill.

Goodyear. The Goodyear project is unique.

U. S. Air Services, Vol. 14, No. 6 (June 1929), Washington, D. C, pp. 30-32, ill.

- Goodyear-Zeppelin developments.

Flight, Vol. 21, No. 47 (Nov. 22, 1929), London, pp. 1239-1240, ill.

Gordon-Bennett. La coupe Gordon-Bennett des ballons libres.

L'Aérophile, 37e année, Nos. 21-22 (ler-15 nov. 1929), Paris, p. 329, ports.

- The new Gordon Bennett trophy.

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, p. 47, ill.

Gosslau, F. Mathematical and experimental investigation of heat control and power increase in air-cooled aircraft engines.

National Advisory Committee for Aeronautics, Technical Memorandums No. 540, Nov. 21, 1929, Washington. November 1929, pp. 12, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, October 7, 1928.

Gough, H. J., and H. L. Cox. The behaviour of a single crystal of zinc subjected to alternating torsional stresses.

Aer. Res. Com., Rep. Mem., No. 1183 (M. 57), July 1928, London, 1929, pp. 23, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 959-981, ills., diagrs., tabls.

Gould, Bruce. Girls have wings, too! how Elinor Smith set an endurance record.

St. Nicholas, Vol. 56 (June 1929), New York, p. 631.

- Sky larking ; the romantic adventure of flying.

New York, H. Liverright, 1929, pp. 259, ills.

Gove, W. D. See Schey, O. W., and W. D. Gove: The effect of supercharger capacity on engine and airplane performance.

Grace, D. Fall guys.

Sat. Even. Post, Vol. 201 (Apr. 6-20, 1929), Philadelphia, pp. 8-9, 24-25, 9899, ill.

9573—30-7

Grace, Richard Virgil. Squadron of death; the true adventures of a movie plane-crasher.

Garden City, N. Y., Doubleday, Doran & Company, inc., 1929, pp. viii, 304, ills., port.

Gradenwitz, Alfred. Device for the automatic control of airplanes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 495, Jan. 10, 1929, Washington, Jan. 1929, pp. 6, ill. From Der Motorwagen, March 31, 1928.

Graf, S. H., and G. W. Gleeson. Adjustment of automotive carburetors for economy.

Circular Series, No. 2, January 1930, Published by authority of the State Board of Higher Education, Engineering Experiment Station, Oregon State Agricultural College, Corvallis, pp. 40, ills., diagrs., tabls.

Graf Zeppelin. Circum-avigation of globe completed by Graf Zeppelin. Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, p. 542.

- Compressed gases fuel Graf Zeppelin.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, p. 140.

- The " Graf Zeppelin."

The Aeroplane, Vol. 36, No. 21 (May 22, 1929), London, p. 840.

- Graf Zeppelin makes third Atlantic crossing in 93 hr.

Aviation, Vol. 27, No. 6 (Aug. 10, 1929), New York, pp. 309-310, ill.

- Graf Zeppelin's second visit.

Literary Digest, Vol. 102 (Aug. 17, 1929), New York, p. 11, ill.

- Graf Zeppelin's trip around the world,

Current History Magazine of N. Y. Times, Vol. 31 (Oct. 1929), New York, pp. 147-148, map.

- Graf zepps around the world.

Literary Digest, Vol. 102 (Sept. 7, 1929), New York, p. 8, map.

- Grouching about the Graf Zeppelin's trip.

Literary Digest, Vol. 103 (Oct. 5, 1929), New York, p. 21, ill.

- Interesting facts about the Graf Zeppelin.

Aviation, Vol. 27, No. 7 (Aug. 17,^.929), New York, p. 342.

- Kurzwellen versuche bei der Amerikafahrt des Luftschiffes " Graf Zeppelin."

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, e. V., Berlin-Adlershof, München, [19291, pp. 221-222, ills.

- The passenger accomodations aboard the Graf Zeppelin.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, p. 170, ill., diagr.

- With the Graf Zeppelin.

Pop. Mech., Vol. 52 (Nov. 1929), Chicago, pp. 738-751, photographs.

- Zep did not go around the world.

Literary Digest, Vol. 102 (Sept. 28, 1929), New York, p. 28, map.

- See Bruemmer, A. V. : The engines of the " Graf Zeppelin."

-' See Dollfus, Charles: Un exploit sans précédent; le tour du monde du

" Graf Zeppelin."

- See Eckenér, Hugo : Die Amerikafahrt des " Graf Zeppelin " * * *

herausgegeben von Rolf Brandt.

- See Fournier, F. E. : Observations sur le tour du monde par le GrafZeppelin.

- See Hanawalt, Wilbur R. : Around the world by airship.

Graf Zeppelin. See Kamm, Wunibald, und Albert Steigltz: Schwingungsuntersuchungen an der Maschinen anläge des Lutfschiffes " Graf Zeppelin."

■- See Lehmann, E. A.: Das Luftschiff Graf Zeppelin vom Standpunkt des

Erbauers aus betrachtet.

- See Llave y Sierra, Joaquin de La: La vuelta al mundo por el dirigible

" Graf Zeppelin."

- See Rasor, W. W.: Graf Zeppelin; queen of the air.

- See Rosendahl, C. E.: Inside the "Graf Zeppelin." The United States

official observer in the monster dirigible's flight to America, tells the details of its construction.

- See Schiller, Hans von: Die erste Mittelmeerreise des " Graf Zeppelin."

- See Zeppelins: La causa de las averias de los motores del " Graf Zeppelin."

Grant, Hugh Duncan. International meteorology.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, p. 1791.

Grant, Vernon Francis. See Warlick, William Walter: Naval aviation; a text book for the instruction of midshipmen in the Department of Seamanship, U. S. Naval Academy, Compiled by Lieutenant W. W. Warlick ... revised by Lieutenant Commander V. F. Grant.

Gravity. Determination of center of gravity and mean aerodynamic chord.

Air Corps Information Circular, Vol. 7, No. 605 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 13, ills., diagrs. Air Corps Technical Report No. 2790.

Gray, George A. Early barnstorming.

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, pp. 49-52, ill.

Great Britain. Aeronautical research in Great Britain.

* Nature, Vol. 124, No. 3127 (Oct. 5, 1929) London, p. 560.

- The air annual of the British Empire.

London, Gale and Polden, Ltd., 1929, pp. 734.

- Air Ministry. Grants to National Flying Services, limited, Note by

the Secretary of State for Air on the conditions under which certain government grants will be made to national Flying Services, limited, in respect of the issue and renewal of pilots' licenses to members of civil flying clubs affiliated to that company.

London, H. M. Stationery Office, 1929, pp. 2. Parliament. Papers by command. Cmd. 3264.

- Britain's record-breaking air carnival.

Literary Digest, Vol. 102 (Sept. 28, 1929), New York, pp. 46-53, ill.

- Civil aviation. Publication of 1928 report delayed.

Flight, Vol. 21, No. 43 (Oct. 25, 1929), London, pp. 1148-1149.

- See Carr, 0. B.: Air route radio services in Great Britain.

- See Hardecker, John F.: British airship developments.

- See History: Early British flights.

- See Kirschner, A.: Der Auftrieg des Britischen Reiches zur Luftgrossmacht.

- See Mercier, L.: Les grands, dirigeables britanniques.

Great Britain. See Sayers, W. H. : British methods of steel aircraft construction.

- See Schulz, R. : Die englische Luftindustrie und ihre Beziehungen zur

deutschen Luftfahrt.

- See Schulz, R. : Present position of the British aircraft industry.

- See Thwaites, N. G. : British civil aviation.

-■ See Wimperis, H. E. : Aeronautical progress in Great Britain. .

- See Wronsky, Martin : Englische und deutsche Luftverkehrspolitik.

Great Lakes plane. Great Lakes commercial plane.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 110, ill., diagr.

Grebel, A. " Safety " fuels for aircraft engines.

National Advisory Committee for Aeronautics, Technical Memorandums No. 494, Jan. 3, 1929, Washington, Jan. 1929, pp. 25, diagrs.

From " Mémoires et compte rendu des travaux de la Société des Ingénieurs Civils de France," July-August 1927.

Green, Fitzhugh. The romance of modern exploration.

Chicago, American Library Association, 1929, pp. 38. Reading with a purpose, No. 46.

Green, M. W. See Crowley, J. W., jr., and M. W. Green : An investigation of the aerodynamic characteristics of an airplane equipped with several different sets of wings.

Greene, D. B. Messages from the sky. A narrative of what Reg and Jim thought and did while breaking and making a new world record.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 15-17, 26, ills.

Greener, F. W. G. See Bradfield, F. B., and F. W. G. Greener: Wind-tunnel experiments on the design of an automatic slot for R. A. F. 31 section.

- See Bradfield, F. B., and F. W. G. Greener : Wind-tunnel experiments on

the design of an automatic slot for R. A. F. 34 section.

Greer, Rowan A. Aeronautics from a legal point of view.

U. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, pp. 32-38.

Gregg, Willis Ray. Flying weather. What the Weather Bureau is doing and wants to do for aeronautics.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 29-30, port., map.

- Meteorology.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 49-50, 240.

Grey, Charles Grey. All the world's aircraft, 1929.

London, Sampson Low, Marston & Co., Ltd., 1929.

Grima, Victor F. Operating passenger lines over airways in Texas.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 94-95, 106, ill.

Grinstead, Frances. Air mapping in Alaska with Loening amphibians,

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 43-46, ill.

Grogan, J. D., and T. H. Schofield. Report on some properties of alloys of aluminum with thorium and silicon.

Aer. Res. Comm., Rep. Mem., No. 1253 (M. 64), April 1929, London, 1929, pp. 12, ills., diagrs., tabls.

Gros, Ferdinand. Pour que l'aviation gagne sa vie.

L'Aéronautique, lime année, No. 120 (mai 1929), Paris, pp. 163-165.

Grosvenor, Edward Arthur, and Leonard Bridgman. International aircraft markings; naval-military and civil.

London, Macmillan and Co., limited, 1929, pp. 6, ills.

Grow, Henry B. Blazing an aerial trail over the Andes.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 84, 216, ill.

Gruillot, G. Le " Graf-Zeppelin " à Cuers-Pierrefeu.

L'Aérophile, 37e année, Nos. 11-12 (ler-15 juin 1929), Paris, pp. 166-167.

G sell. Les aménagements techniques des aéroports.

Le Genie Civil, T. 93, No. 17 (27 oct. 1928), Paris, p. 411.

Guggenheim. The Daniel Guggenheim Fund. Second report on the activities for 1928.

Flight, Vol. 21, No. 8 (Feb. 21, 1929), London, p. 135.

- The Guggenheim Fund in 1928.

The Aeroplane, Vol. 36, No. 8 (Feb. 20, 1929), London, p. 270.

- Guggenheim fund reports solution of blind-flying problem.

Air Commerce Bulletin, Vol. 1, No. 8 (Oct. 15, 1929), Washington, pp. 15-17. Department of Commerce, Aeronautics branch.

- The Guggenheim safe aircraft competition.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 22 (Nov. 27, 1929), London, pp. 1238, 1240.

- Looking for safer aircraft.

Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, pp. 795-796, ill.

- Progress of the Guggenheim competition.

Aviation, Vol. 27, No. 20 (Nov. 16, 1929), New York, pp. 974-978, ill.

- See Enyart, William R. : The Guggenheim competition under way.

- See Fog: Guggenheim fog flying experiments.

- See Reid, Elliott G. : The Guggenheim aeronautic laboratory at Stanford

university.

- See Sagendorph, Kent : The Guggenheim safe aircraft.

- See Warner, Edward P. : N. A. A. launches private flying clubs. Grant

of $12,000 by Guggenheim Fund enables plan to become effective at once.

Guggenheim, Harry F. Making flying safe.

Forum, Vol. 82 (July 1929), New York, pp. 17-22, ill.

- N. A. A. lauds Guggenheim and Doolittle for fog-flying success.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, p. 34.

- See Curtis, Frank L. : A review of aviation accomplishments. An interview with Harry F. Guggenheim.

- See Wright, Milton : Builders of the aviation industry.

Guibert, Marius. Centrage et stabilité des avions.

L'Aéronautique (L'Aérotechnique, 7e année, no. 82, 83), lime année, No. 125, 126 (oct. nov. 1929), Paris, pp. 339-346, 375-380, ills., diagrs.

Guillemin, J. Précis de construction, calcul et essais des avions et hydroavions.

Paris, Gauthier-Villars et Cie., 1929, pp. vi, 442, ill.

Gunkle, O. E. Air bum.

Scribner's Magazine, Vol. 85, New York, pp. 135-138.

Gustosa, C Oerado. Particolari costruttivi deU'aerovascello " Do X."

Riv. Aeron., Anno 5, N. 10 (Ott. 1929), Roma, pp. 84-113, ill.

Gustosa, Corrado. I perfezionamenti degli ultimi motori d'aviazione raffreddati ad aria.

Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 108-123, ills., diagrs.

- Le possibilità di lotta fra velivoli giganti e velivoli monoposti.

Riv. Aeron., Anno 5, N. 11 (Nov. 1929), Roma, pp. 314-325.

- Velivoli da guerra di medio e grande tonnellaggio.

Riv. Aeron., Anno 5, N. 5 (Mar. 1929), Roma, pp. 261-287.

Gwinn, S. Aviation is about to become of age. Interview with C. M. Keys.

American Magazine, Vol. 108 (Sept. 1929), Springfield, Ohio, pp. 50-53, ill.

Gymnich, Alfried. Taschenbuch für Flugzeugführer.

Berlin, Verlag: Richard Carl Schmidt & Co., 1928, pp. 204.

Gyroplanes. See Cierva, Juan de la : Le nouvel autogire la Cierva 80 CV.

- See Deimel, Richard F. : Mechanics of the gyroscope.

- See Glauert, H. : On the horizontal flight of a helicopter.

- See Glauert, H., and C. N. H. Lock : A summary of the experimental and

theoretical investigations of the characteristics of an autogyro.

- See Isacco, V. : The helicogyre.

- See Lock, C. N. H., and H. C. H. Townsend : Wind tunnel experiments on

a model autogyro at small angles of incidence.

H

Hackett, W., Jr. Stainless steel and iron.

Journ. Roy. Aer. Soc, Vol. 33, No. 219 (Mar. 1929), London, pp. 235-238.

Hackett, W. W. Steel tubes, tube manipulation and tubular structures for aircraft.

Journ. Roy. Aer. Soc, Vol. 33, No. 219 (Mar. 1929), London, pp. 226-234.

Haddow, Anna. Aeronautics ; a bibliography compiled by Anna Haddow for the 25th anniversary of aviation.

Washington, D. C, Public Library, 1928.

Haering, George J. Civil aeronautics in Japan.

Aero Digest, Vol. 15, No. 2 (July 1929), New York, pp. 79, 262-266, ill.

Hall, Albert Neely. Building miniature airship models, a comprehensive, thoroughly illustrated work manual on the construction and flying of miniature aircraft, with a final chapter on model boat building.

[Denver], "Boy stuff" publications, 1928, pp. 46, ills., diagrs. Little loose-leaf library for boys' workers everywhere. Bulletin No. 12.

Hall, Bert, and John J. Niles. One man's war; the story of the Lafayette Escadrille.

New York, H. Holt and Company, 1929, pp. 353, ills.

Hall, Norman B. Air checking stations. U. S. Coast Guard provides valuable assistance to coastal air travel.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, pp. 21, 34, map.

- The Coast Guard in aeronautics.

Domestic Air News, No. 52, May 15, 1929, Washington, pp. 7-9. Department of Commerce, Aeronautics branch.

Hall, Norman S. Lockheed plywood construction.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, p. 68, ill.

Hall, S. Scott. See Bradfield, F. B., and S. Scott Hall : Wind tunnel tests of a R. A. F. 30 wing fitted with a self-setting slotted wing (pilot plane).

Hallett. See McBeynolds, Charles F.: The Federal CM-3. New Hallett powered, three-place, cabin monoplane has structure built entirely of welded steel tubing.

Halliday, A. S. See Bryant, L. W., and A. Si Halliday : Measurement of lateral derivatives on the whirling arm.

- See Bryant, L. W., E. Ower, A. S. Halliday, and V. M. Falkner : On the

convection of heat from the surface of an aerofoil in a wind current.

Halpin, Thomas E. Planes that fly or planes that earn?

Aviation, Vol. 26, No. 19 (May 11, 1929), New York, pp. 1608-1609, ill.

Hamel, G. Les conditions à.remplir pour faciliter la traversée aérienne transocéanique.

Revue Industrille (juin 1928). Paris. Reviewed in: Le Genie Civil, T. 93, No. 7 (18 août 1928), Paris, p. 172.

Hamilton, Cloyce C. Eight hours by air! How the Chicago-New York run will appear to passengers of tomorrow.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, pp. 23-24, 46, ills.

Hamilton, T. F. Less weight, more strength.

Factory and Industrial Management, Vol. 77 (May, 1929), Chicago, pp. 463-465, ill., diagr.

Hamilton, William F. See Masson, Henry James, and William F. Hamilton: A study of auto-ignition temperatures. Ill—(a) Mixtures of pure substances, (&) Gasolines.

Hamlin, P. G. Flying and mental health.

U. S. Air Services, Vol. 14, No. 6 (June 1929), Washington, d. C, pp. 39-40.

Hammond, C. S., & Co. Air-line atlas of the world.

Brooklyn, N. Y., C. S. Hammond & Co., 1928, pp. 12, maps.

Hampton, E. L. Creating the airways of America.

Travel, Vol. 53 (Aug. 1929), New York, pp. 39-42, ill.

Hanawalt, Wilbur, R. Around the world by airship.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 50-51, 261-263, ill.

Handley Page. Handley Page metal construction.

Flight, Vol. 21, No. 19 (May 9, 1929), London, pp. 375-377, diagr. National Advisory Committee for Aeronautics, Technical Memorandums No. 533, Oct. 3, 1929, Washington, October 1929, pp. 8, ills. From Flight, May 9, 1929.

- Résumé of investigations made on Handley Page slots and flaps. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 639 (Oct 1, 1929), Washington, United States Government Printing Office, 1929, pp. 13, ills. Air Corps Technical Report No. 3020.

- See Klemin, Alexander: Learning to use our wings * * * Handley

Page slot mechanisms.

Hangars. World's largest hangar ; Akron, O.

Literary Digest, Vol. 101 (Apr. 20, 1929), New York, p. 25, ill.

- See Bringhurst, H. M. : How we sell structural steel for hangars.

- See Corbett, Harvey Wiley : Underground hangar arrangements for future

airports.

- See Davison, R. L. : Hangar construction and costs.

- See Locke, M. S. : The why of steel built hangars.

Hangars. See Mossner, K. J. : Der neue Flughafen München-Oberwiesenfeld.

- See Perkins, N. S. : Lumber built airplane hangars.

- See Snodgrass, R. D. : Steel for hanger roofs.

Hanks, Steidman Shtjmway. International airports.

New York, The Ronald Press Company, 1929, pp. x, 195, ill., map.

Hanshue, Harris M. Over the arrowhead trail. The western air express trip is more than a flight—it's an education.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 19-21, 45 ills.

Hanson, Earl. Canadian Pacific express experiments with air-mail service.

Airway Age, Vol. 10, No. 6 (June 1929), New York, pp. 835-836, ill., map.

- Cold Lake is serviced by airplanes. An example of how Canadian aviation opened the north.

Airway Age, Vol. 10, No. 8 (Aug. 1929), New York, pp. 1231-1233, ill.

- The far north route to Europe.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 431-435, ill., map.

- The place of aircraft in polar research.

Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, pp. 275-279, ill.

- Special methods of Canadian flyers.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1784-1786, ill.

Hanworth. The opening of Hanworth.

The Aeroplane, Vol. 37, No. 10 (Sept. 4, 1929), London, pp. 641-644, ill.

Hanworth Park. Hanworth Park.

Flight, Vol. 21, No. 41 (Oct. 11, 1929), London, pp. 1097-1099, ill.

Hardecker, John F., and B. E. Lambert. Airplane weight control.

Airway Age, Vol. 10, Nos. 9-10 (Sept.-Oct. 1929), New York, pp. 1401-1403, 1620-1622, ill.

Hardecker, John F. British airship development.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1769-1774.

- Extruded duralumin in aircraft.

Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, pp. 270-274, ill.

- Metals in aircraft construction.

Amer. Mach., Vol. 71, No. 15 (Oct. 10, 1929), New York, pp. 629-632, ill.

- Refinements in airplane cabin furnishings.

Airway Age, Vol. 10, Nos. 6-7 (June-July 1929), New York, pp. 810-814, 1211-1214, ill.

- Stainless steel members in R. 101.

Iron Age, Vol. 123, No. 26 (June 27, 1929), Middletown, N. Y., pp. 17531758, ill.

- Standardization of small engine parts.

Aviation, Vol. 27, No. 21 (Nov. 23, 1929), New York, pp. 1016-1020, ill., diagr.

Hardesty, Corrine. Relief work by airplane in the Alabama flood.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 46, 248, ill.

Hardy, J. K. Full scale control tests on Fokker F. VII 3M monoplane.

Aer. Res. Comm., Rep. Mem., No. 1228 (Ae. 383), November 1928, London, 1929, pp. 8, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 656-663, diagrs.

Hardy, P. Le réchauffage des carburateurs.

L'Aéronautique (L'Aêrotechnique, 7e année, No. 76), lime année, No. 119 (avrU 1929), Paris, pp. 115-120, ill.

Harper, Carl. Slots and spins.

Aeronautical Engineering Section, Aviation, Vol. 26, No. 20 (May 18, 1929), New York, pp. LXX-LXXVI, diagr.

Harper,, C. B. Airplane spins and wing slots.

Journ. Soc. Automotive Engineers, Vol. 24, No. 1 (July 1929), New York, pp. 25-33, ill.

Harper, Harry. Twenty-five years of flying; impressions, recollections, and descriptions.

London, Hutchinson & Co., ltd., 1929, pp. xviii, 19-292, ill.

Harris, R. G., and R. A. Faikthorne. Wind tunnel experiments with infinite cascades of aerofoils.

Aer. Res. Comm., Rep. Mem., No. 1206 (Ae. 367), September 1928, London, 1929, pp. 18, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 286-303, ills., diagrs., tabls.

Hartshell, H. Dynamics of soaring flight.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 63, 280, 282, ill.

Hartshorn, A. S. The application of the servo principle to aileron operation.

Aer. Res. Comm., Rep. Mem., No. 1262 (Ae. 411), March 1929, London, 1929, pp. 16, diagrs., tabls.

- Theoretical relationship for a wing with unbalanced ailerons.

Aer. Res. Comm., Rep. Mem., No. 1259 (Ae. 408), April 1929, London, 1929, 16, diagrs., tabls.

Hartz, R. S. The Tunison " Scout" monoplane.

Aviation, Vol. 27, No. 2 (July 13, 1929), New York, pp. 137-141, ill., diagr,

Harvey, W. G. Magnesium and its alloys in aircraft.

American Electrochemical Society, Advance paper, No. 34, Sept. 19-21, 1929, pp.<367-377, ill. .

Haslam, J. A. G. Wool-tufts. A direct method of discriminating between steady and turbulent airflow over the wing surfaces of aircraft in flight; applied to explore the region of effect of the slot on a Bristol fighter wing.

Aer. Res. Comm., Rep. Mem., No. 1209 (Ae. 362), November 1928, London, 1929, pp. 5, ill.

Aeronautics, Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 2, London, 1929, pp. 821-826, ill.

Havill, C. H. Aircraft propellers.

Journ. Soc. Automotive Engineers, Vol. 24, No. 1 (Jan. 1929), New York, pp. 17-23, ill.

Hawk Moth. See De Havilland: The De Havilland D. H. 75 " Hawk Moth " (British). Cabin monoplane.

Hawker. The new Hawker " Tomtit " training machine.

Flight, Vol. 21, No. 1 (Jan. 3, 1929), London, pp. 3-4, ill.

Hawks, Frank M. Our coast-to-coast flight.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 38-40, 218, 220, ill.

Hay, C. C. The class A airport.

Colorado Engineer, Vol. 25, No. 3 (March 1929), Boulder, Col., pp. 102, 146, ill.

Hay, Lady Drummond. Flying across the Atlantic.

Ladies Home Journal, Vol. 46 (Jan. 1929), Philadelphia, p. 17.

Haynes, Frank. Airlines in the Canal Zone.

Aviation, Vol. 27, No. 18 (Oct. 26, 1929), New York, pp. 849, ill.

Heald, R. H., and D. H. Strother. Effect of variation of chord and span of ailerons on rolling and yawing moments in level flight.

National Advisory Committee for Aeronautics, Report No. 298, Mar. 3, 1929, Washington, Government Printing Office, 1929, pp. 19, ill., diagrs., tabls.

Heat. See Bryant, L. W., E. Ower, A. S. Halliday, and V. M. Falkner : On the convection of heat from the surface of an aerofoil in a wind current.

Heat control. See Gosslau, F. : Mathematical and experimental investigation of heat control and power increase in air-cooled aircraft engines.

Heat treatment. See Phillips, C. B. : Heat treatment of alloy steels in airplane work.

Heath, Lady Mary-. It is safe to fly. High safety factors in construction, and efficient personnel, contribute materially to aviation advancement.

Scient. Amer., Vol. 141, No. 1 (July 1929), New York, pp. 36-38, ill.

- Short distance racing and handicapping.

Aviation, Vol. 26, No. 3 (Jan. 19, 1929), New York, pp. 163-165, ill.

- Testing American aircraft.

Plight, Vol. 21, No. 3 (Jan. 17, 1929), London, p. 47.

- Why I always fly solo.

Pictorial Review, Vol. 30 (Mar. 1929), New York, p. 6.

Heating parts, See Klemin, Alexander : Learning to use our wings. Vertical heat-treating furnace.

Heberlein, Gustave E. Aircraft control of lighting for emergency landing fields.

Aviation, Vol. 26, No. 24 (June 15, 1929), New lork, pp. 2070-2072, ill.

Hedin, Sven. Auf grosser Fahrt. Meine Expedition mit Schweden^ Deutschen und Chinesen durch die Wüste Gobi 1927-28.

Leipzig, Verlag F. A. Brockhaus, 1929, pp. xii, 347.

Hegardt, G. B. Oakland municipal airport.

American City, Vol. 40 (May 1929), New York, pp. 142-144, ill.

Heinkel. The Heinkel catapult on the S. S. " Bremen."

Aviation, Vol. 27, No. 5 (Aug. 3, 1929), New York, pp. 263-264, ill.

- See Bremen: Das Heinkel-Flugzeugkatapult auf dem neuen Riesenschnelldampfer " Bremen " des Norddeutschen Lloyd.

Heinze, Edwin P. A. Light airplanes of Germany.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 140-144, ill., diagr.

Helicogyre. The " Helicogyre."

Flight, Vol. 21, No. 12 (Mar. 21, 1929), London, pp. 244-245, diagr.

- See Isacco, V. : The helicogyre.

- See Klemin, Alexander: Learning to use our wings * * * The

helicogyre.

Helicopters. See Glauert, H. : On the horizontal flight of a helicopter.

- See Lamé, M. : L'avion hélicoptère.

Helioplane. See Fullerton, Frederick H. : The " Helioplane." Developed by resident of New Westminster, B. C.

Helium. For dirigibles and divers.

St. Nicholas, Vol. 56 (July 1929), New York, pp. 714-715, ill.

- Helium plant makes initial shipment.

Ind. Eng. Chem., Vol. 21, No. 6 (June 1929), Washington, D. C, p. 524.

Helium. See Akron : Helium at Akron.

- See Bottoms, R. R.: The production and uses of helium gas.

Henderson, P., and P. F. O'Shea. Business at airplane speed.

Magazine of Business, Vol. 55 (Feb. 1929), Chicago, pp. 139-141, ill. Literary Digest, Vol. 100 (Mar. 30, 1929), New York, pp. 18-19.

Henderson, Paul. Make haste slowly! Keynote address before the N. A. A. convention.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 24, 60, port.

Hendy. The Hendy " Hobo."

The Aeroplane, Vol. 37, No. 22 (Nov. 27, 1929), London, pp. 1256, 1258, diagr. Flight, Vol. 21, No. 48 (Nov. 29, 1929), London, p. 1256, ill.

Henriokson, H. B. Altitude flights.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 39-42, 242-246, ill.

Herbert, Percy. Herbert air navigation course. Lesson 1-.

Portland, Oregon, 1928-.

Heron, S. D. The in-line air-cooled engine.

Journ. Soc. Automotive Engineers, Vol. 24, No. 4 (Apr. 1929), New York, pp. 376-387, ill.

Herri ok, G. S. Metals used in airplane making.

Iron Age, Vol. 124, No. 4 (July 25, 1929), Middletown, N. Y., pp. 211-214, ill.

Herrmann, H. Analysis of flight and wind-tunnel tests on Udet airplanes with reference to spinning characteristics.

National Advisory Committee for Aeronautics, Technical Memorandums No. 502, March 12, 1929, Washington, March 1929, pp. 21, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, January 14, 1929.

- Auswertung von Flugversuchen und Windkanalmessungen an den Udet-

Flugzeugen: Udet U 6 Tiefdecker, Udet U 7 "Kolibri," Udet U 12 " Flamingo."

Zeitschr. Flug. Motorluftsch., 20. Jahrg., 1. Heft (14 Jan. 1929), München, pp. 3-15, ills., diagrs.

Hersey, Mayo D. Viscosity of Diesel-engine fuel oil under pressure.

National Advisory Committee for Aeronautics, Technical Notes No. 315, Sept. 3, 1929, Washington, September 1929, pp. 8, diagrs., tabls.

Hess, j. H. See Fullerton, Frederick H.: The " Helioplane." Developed by resident of New Westminster, B. C. (J. H. Hess.)

Heston. The Heston air-park.

The Aeroplane, Vol. 36, No. 20 (May 15, 1929), London, pp. 799-800, ill.

- The Heston garden party.

The Aeroplane, Vol. 37, No. 4 (July 24, 1929), London, pp. 212-217, ill.

- Heston as a wireless station.

Flight, Vol. 21, No. 48 (Nov. 29, 1929), London, pp. 1257-1258, ill.

- London's new private aerodrome.

Flight, Vol. 21, No. 23 (June 6, 1929), London, pp. 464-465, ill., map.

Higgins, George J. The prediction of airfoil characteristics.

National Advisory Committee for Aeronautics, Report No. 312, Sept. 18, 1929, Washington, United States Government Printing Office, 1929, pp. 13, diagrs., tabl.

Highways. See Markers: Air markings for highways.

Hill, Earl W. See Woolley, James G., Earl W. Hill, Wm. P. MacCracken and Carl-Gustaf Rossby: Airplane transportation.

Hill, F. T., and T. Tanner. The resistance of the international airship models measured in the wind tunnel of the Royal College of Science, South Kensington, S. W. 7.

Aeronautics, Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 471-479, ills., diagrs., tabls. R. & M. No. 1160).

Hill, Roderic. The Baghdad air mail.

London, Ed. Arnold 1929, pp. x, 328, ill.

Hingsburg, F. C. Lighting, radio, and interfield communication.

Airway Age, Vol. 10, No. 6 (June 1929), New York, pp. 826-830, ill.

Hinkler, J. H. L. B. My flight to Australia.

Journ. Roy. Aer. Soc, Vol. 33, No. 227 (Nov. 1929), London, pp. 1025-1033.

Hirsch Auer, L., et Ch. Dollfus. L'année aéronautique 1928-1929. 10e année, Paris, Dunod, Éditeur, 1929, pp. vii, 451, xii, ill.

Hirschauer, L. L'évolution de l'aviation depuis 1919.

L'Aérophile, 37e année, Nos. 7-8 (ler-15 avril 1929), Paris, pp. 104-107, ill.

History. Aviation's twenty-five birthday candles.

Literary Digest, Vol. 100 (Jan. 5, 1929), New York, pp. 47-56, ill.

- Early British flights.

Flight, Vol. 21, No. 8 (Feb. 21, 1929), London, pp. 132-133.

—— Firsts in aviation.

Scient. Amer., Vol. 140 (June 1929), New York, p. 501, ill.

- Flying birthdays.

Outlook, Vol. 151 (Feb. 13, 1929), New York, p. 255.

- History and progress of aeronautics. Air Ministry and Royal Aeronautical Society exhibits at Olympia.

Flight, Vol. 21, No. 31 (Aug. 1, 1929), London, pp. 821-829, ill.

- Précurseurs.

L'Aérophile, 37e année, Nos. 1-2 (ler-15 jan. 1929), Paris, p. 10, ill.

- Ten years of flight.

Domestic Air News, No. 53, May 30, 1929, Washington, p. 14. Department of Commerce, Aeronautics branch.

- Twenty-five years of flight.

Nation, Vol. 127 (Dec. 19, 1928), New York, p. 674.

—— Who and where of famous flights.

St. Nicholas, Vol. 56 (June 1929), New York, pp. 644-645, map.

- See Airships: The all-metal airship.

- See Aviators: The World's first aviators.

- See Clark, Virginius Evans : Historical development of the American airplane.

- See Fansler, P. E. : The first commercial airline.

- See Farmer, D. : It was a long time coming.

- See Favier, Louise-Faure : L'aviation marchande célèbre son Xe anniversaire.

- See Giacomelli, R. : An historical survey of Italian aeronautics.

--See Glassman, Don: The black sheep of aviation. Our aerial life preservers are deserving of a geneological record—and here it is.

- See Hirschauer, L. : L'évolution de l'aviation depuis 1919.

History. See Lawrence, Charles L.: The development of the airplane engine in the United States.

■- See Mead, George J.: Historical development of air-cooled engines.

- See Passengers: First airplane passenger.

- See Production: Airplane production and export 1909-1928.

- See Royal Aeronautical Society: The Society's exhibit at the International Aero Exhibition, Olympia, July 16th-27th, 1929.

- See Van Dusen, W. L.: The first million miles. A story of true aerial

pioneering between North and South America which is advancing to progress of the Western Hemisphere.

Hobbs, William Herbert. The northern flying route to Europe.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 66-67, 290-292, ill., map.

Hodgson, John L. Tests on model propellers.

Journ. Roy. Aer. Soc, Vol. 33, No. 223, 225 (July, Sept. 1929), London, pp. 615-630, 829-836, ills., diagrs., tabl.

Hoff, Wilh., Ottfried v. Dewitz, und Georg Madelung. Jahrbuch 1929 der Deutschen Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof.

München, Druck von R. Oldenhourg, [1929], pp. 480, ills., diagrs., tabls.

Hoffmann, Friedrich. Entwicklung eines Anschnallgurtes von einheitlichem Muster.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof. München, [1929], pp. 44-48, ill.

Hoffman, Frederick L. The conquest of the air.

Domestic Air News, Serial No. 45, Jan. 31, 1929, Washington, pp. 4-8. Department of Commerce, Aeronautics branch.

- More air travelogues.

Domestic Air News, No. 53, 54, May 30, June 15, 1929, Washington, pp. 9-13, 10-15. Department of Commerce, Aeronautics branch.

Air Commerce Bulletin, Vol. 1, No. 1 (July 1, 1929), Washington, pp. 5-7. Department of Aeronautics, Aeronautics branch.

Hoffmann, W. Welding rustproof steels.

National Advisory Committee for Aeronautics, Technical Memorandums No. 531, Sept. 19, 1929, Washington, September 1929, pp. 9 ills., diagrs., tabls. From Autogene Metallbearbeitung, December 15, 1927 (Vol. 20).

Holcombe, T. G. Boston develops its municipal airport under jurisdiction of the park commissioner.

'American City, Vol. 40 (Jan. 1929), New York, pp. 161-162, ill.

Holl, H. See Glauert, H.: Die Grundlagen der Tragflügel- und Luftschraubentheorie. Übersetzt von H. Holl.

Holland. See Maas, H. J. van der: The development of aviation and aeronautical research in Holland in recent years.

Holm, Fritz. Handbuch für den Flugzeugbau. Berlin, Im Selbstverlag, 1928, p. 64.

Holterman, E. H. In defense of army air officers.

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 30-31.

Holzapfel, Adolf. Seaworthiness tests of the Rohrbach " Romar."

Flight, Vol. 21, No. 4 (Jan. 24, 1929), London, pp. 59-61, ill.

Holzapfel, Adolf. Zur Seetüchtigkeitsprüfung der Rohrbach-" Romar."

Illustrierte Flug-Woche, 11. Jahrg., Heft 1, 1929, Berlin-Lichterfelde, pp. 9-11, ill.

- See Mathias, Gotthold, and Adolf Holzapfel: Technical details in the

structural development of Rohrbach seaplanes.

- See Mathias, Gotthold, und Adolf Holzapfel: Technische Besonderheiten

in der baulichen Entwicklung der Rohrbach-Flugboote.

Hood, Evelyn. An aviator.

Garden City, N. Y.. Doubleday, Doran & Company, inc., 1929, pp. 43, ill.

Hose. See Lamé, M. : Tuyauteries et raccords.

Hosking, H. Improved Cierva autogiro tested in flight by inventor.

Automotive Ind., Vol. 61, No. 9 (Aug. 31, 1929), New York, pp. 302-303, 306, ill.

Hotchkiss, Henry Greene. See Knauth, Arnold Whitman, Henry Greene Hotchkiss, and Emory Hamilton Niles : United States aviation reports.

Howard, H. B. The graphical and analytical determination of stresses in single span and continuous beams under end compression and lateral load with variations in shear, distributed load, and moment of inertia.

Aer. Res. Comm., Kept. Mem., No. 1233, (Ae. 388), June 1928, London, 1929, pp. 30, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 856-885, diagrs.

- See Gates, S. B., and H. B. Howard : On the maximum load in pulling out

from vertical dives.

Hoyt, Richard F. See Wright, Milton : Builders of the aviation industry.

Huber, Karl. Schubmodul und Drehfestigkeit von Hölzern.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 10. Heft (28. Mai 1929), München, pp. 250-256, ill., diagrs., tabls.

Hübner, Walter. Erfahrungen bei Flugeigenschaftsprüfungen im Jahre 1927-28.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 282-288, ill.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 8. Heft (29. April 1929), München, pp. 189-195, ills.

- Information obtained from air plane flight tests in the year 1927-1928.

National Advisory Committee for Aeronautics, Technical Memorandums No. 535, Oct. 17, 1929, Washington, October 1929, pp. 24, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, April 2$, 1929.

Hübner, Walter, und W. Pleines. Kinematographische Messung der Trudelbewegung an einem Flugzeug vom Muster Albatros L 68.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershoft, München, [1929], pp. 59-68, ills., diagrs., tabls.

Zeitschr. Flug. Motorluftsch., 20. Jahrg., 2. Heft (28. Jan. 1929), München, pp. 29-45, ills., diagrs., tabls.

Hübneb, Walter. Stabilitätseigenschaften und Steuerbarkeit der deutschen Landflugzeuge.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 20. Heft (28 Okt. 1929), München, pp. 521-528, ills., diagrs.

Hughes-Waage. Hughes-Waage course corrector.

Flight, Vol. 21, No. 20 (May 16, 1929), London, pp. 403-404, ill.

Hull,-England. Prince George opens the Hull municipal aerodrome.

Flight, Vol. 21, No. 42 (Oct. 18, 1929), London, pp. 1117-1120, ill.

Human element. See Battey, George M., jr. Homo sapiens. A valuable discussion of the human element in flying and also of the important matter of insurance protection for pilots and mechanics.

- See Culemans, J. B.: The human factor in flying.

- See Lane, L>. R.: The human element in flying.

Hume, D. G. M. Some notes on the technical problems of Canadian aviation. Flight, Vol. 21, No. 50 (Dec. 13, 1929), London, pp. 1312-1314.

Humidity. See Brooks, Donald B.: Horsepower correction for atmospheric humidity.

Humphreys, William Jackson. Aircraft and the thunderstorm.

Aviation, Vol. 27, No. 20 (Nov. 16, 1929), New York, p. 981.

- Physics of the air.

New York, McGraw-Hill, 1929, xii + 654 pp., ill.

Hunsaker, A. O. The benefits of a finance service to aviation.

Aviation, Vol. 27, No. 23 (Dec. 7, 1929), New York, pp. 1114-1116.

Hurley, Patrick J. See Gillmore, William E.: Industrial war plans. Why the Army Air Corps seeks the aid of the industry for National Defense.

Hurricanes. See Fassig, Oliver L.: On the frequency of hurricanes in the vicinity of Porto Rico.

Hurtuk, S. H. Aeronautics in the high schools.

Industrial Arts Magazine, Vol. 18 (July 1929), Milwaukee, Wis., pp. 245-249, ill.

Hydrocarbons. See Carr, Marvin S., and George Granger Brown: Gaseous explosions. VII—Effect of tetraethyl lead on rate of rise of pressure.

Hydrodynamics. See Lamb, H.: The hydrodynamic forces on a cylinder moving in two directions.

- See Magnan, A., et A. Sainte-Lague: Nouvelles experiences sur la resistance ä l'avancement des poissons dans l'eau.

- See Murnaghan, F. D.: Modern hydrodynamical theory with special

reference to aeronautics.

- See Villat, Henri: Lecon sur l'hydrodynamique.

Hydrogen. See Tanaka, Yoshio, and Yüzaburö Nagai: Studies on inflammability of hydrogen.

Hydromechanics. See Lichtenstein, Leon: Grundlagen der Hydromechanik.

- See Tietjens, O.: Hydro und Aeromechanik nach Vorlesungen von L.

Prandtl. Band I: Gleichgewicht und reibungslose Bewegung.

Hyland, Lawrence A. Ignition shielding for radio operation.

Aviation, Vol. 26, No. 12 (March 23, 1929), New York, pp. 886-890, ill.

Hynes, G. B. Engine performance testing.

Journ. Roy. Aer. Soc, Vol. 33, No. 224 (Aug. 1929), London, pp. 667-685.

I

" I " struts. New Laird plane uses big plywood " I " struts.

U. S. Air Services, Vol. 14, No. 5 (May 1929), Washington, D. C, p. 54, ill.

ILA. See Klemin, Alexander: Learning to use our wings. The Chicago air show. ILA.

- See Wijn, J. W.: Aerial photography at the ILA.

Icarus. See Schoonmaker, F.: Icarus incorporated.

Ice. Ice-warning indicator.

Scient. Amer., Vol. 140 (Mar. 1929), New York, p. 261, ill.

- See Carroll, Thomas, and William H. McAvoy: The formation of ice upon

airplanes in flight.

- See Klemin, Alexander: Learning to use our wings. An ice-warning

indicator.

- See Kopp, W.: Danger of ice formation on airplanes.

Idaho. Idaho publishes aeronautics bulletin.

Air Commerce Bulletin, Vol. 1, No. 7 (Oct. 1, 1929), Washington, p. 4, Department of Commerce, Aeronautics branch.

Ignacio Zaragoza. El puerto aereo " Ignacio Zaragoza" en la ciudad de Puebla, Mexico.

Ingenieria, Vol. 3, No. 12 (Dec. 1929), Mexico, p. 571, ill.

Ignition. See Hyland, Lawrence A.: Ignition shielding for radio operation.

- See Masson, Henry James, and William F. Hamilton: A study of auto-ignition temperatures. Ill—(a) Mixtures of pure substances, (b) Gasolines.

Illuminating Engineering Society. See Lighting: Aviation lighting.

Immler, Werner. Grundsätzliches zur Flugzeugnavigation.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 9. Heft (14. Mai 1929), München, pp. 217-224, diagrs.

- Leitfaden der Flugzeugnavigation.

München und Berlin, R. Oldenbourg, 1928, pp. vi, 89, ill.

Impact waves. See Becker, R.: Impact waves and detonation.

Imperial Airways, Ltd. Annual report of Imperial Airways, Ltd.

Flight, Vol. 21, No. 40 (Oct. 4, 1929), London, pp. 1081-1082.

Imports. See Exports: Exports and imports of aircraft from and into the United States.

Inoas. See Johnson, G. R.: Flying in the land of the Incas.

India. The air route to India.

Flight, Vol, 21, No. 6 (Feb. 7, 1929), London, p. 99, map.

- The air route to India. A real start made at last with Empire Air

Services.

Flight, Vol. 21, No. 14 (Apr. 4, 1929), London, pp. 269-274, 288, ill., map

- First nonstop flight to India.

Flight, Vol. 21, No. 18 (May 2, 1929), London, p. 351, ill.

- Log of the British non-stop to India flight.

Flight, Vol. 21, No. 25 (June 20, 1929), London, pp. 501-502, 514, ill.

- See Sassoon, P.: Aerial passage to India.

- See Scott, C. L.: By flying boat to India.

Individual ownership. Airplanes for private owners.

Literary Digest, Vol. 101 (June 1, 1929), New York, p. 24.

Industry. See Ernst and Ernst: Grouping in the aviation industry. Status at the time of going to press.

Ingalls, David S. The air races and the National defense.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, p. 381, ill.

Ingalls, David S. The first naval ace. New Assistant Secretary of the Navy for Aeronautics has brilliant war record.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, pp. 13, 22, port.

- United States Naval aviation expansion during the past year.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 57-58, ill.

- See Pyle, Ernest T.: David S. Ingalls. The new Assistant Secretary

of the Navy for Aeronautics.

Inspection. Inspection methods in the American Cirrus engine plant.

Airway Age, Vol. 10, No. 9 (Sept. 1929), New York, pp. 1395-1397, ill.

- The Visual inspection system.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 86-87, diagr.

- See Licenses : Aeronautic licensing and inspection service.

Installment. ■ See Ellsworth, A. E. : Selling airplanes on the installment plan.

- See Luftig, William W. : Installment selling of airplanes.

Institut Central Aérohydrodynamique de Moscou. See Pogossky, J. : L'avion tromoteur métallique A. N. T.-9 de l'Institut Central Aérohydrodynamique de Moscou.

Instrument boards. See Kiemin, Alexander : Learning to use our wings * * *. A flush instrument board.

Instruments. Luminous wind indicators.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, p. 48, ill.

- Navigator's triangulator based on the slide rule.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, p. 1836, diagr.

- The story of Friez instruments.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 160-164, ill.

- A wind-direction indicator.

Aeronautical Engineering suppl. The Aeroplane, Vol. 37, No. 26 (Dec. 25, 1929), London, p. 1438, ill.

- See Aerotechnique : Une machine a calculer le point.

- See Chatterjee, G. : An upper air temperature indicator for use with pilot

balloon.

- See Coldeway, H. : Der Magnetkompass als aeronautisches Instrument.

- See Ice: Ice-warning indicator.

- See Jenkins, Charles Francis: Radiomovies, radiovisión, television.

- See Keulegan, Garbis Hovannes: Investigation of damping liquids for

aircraft instruments.

Insulation. See Pearce, Gale: Cabin airplane insulation.

Insurance. Reduction in insurance rates.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, p. 23.

- See Doyle, O. M. : Underwriting aviation insurance.

- See Lincoln, F. : Aviation insurance makes for safety.

- See Loeb, Jesse: First flying club formed. Details also given of terms

and conditions of insurance policy.

- See Moray, Norman R. : Insurance and aviation.

9573—30-8

Insurance. See Morrison, L. K. : Aircraft motor insurance. Containing a plea for study of viscosities as met under operating conditions.

- See Myers, Franklin D. : Aviation insurance in the United States.

- See Neely, Frederick R. : The incontestable clause. It has an important

bearing on your flying ; read your insurance policy.

- See Smith, William B. : Classification needed for aeronautic insurance.

- See Sweeney, Stephen B. : Insurance and aeronautics.

Interference. See Lock, C. N. H. : Airscrew body interference.

Interferometer. Note sur le principe de l'appareil interférentiel.

L'Aéronautique (L'Aérotechnique, 7 e année, No. 75), lime année, No. 118 (mars 1929), Paris, pp. 83-84, ill.

International Aeronautics Association. See Morris, Charles L. : The crisis in college flying? The Intercollegiate Aeronautic Association is in close attendance on a very important case.

International Aeronautics Conference. The civil aeronautics conference.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, pp. 10-11. Department of Commerce, Aeronautics branch.

International Air Congress, 5th International Air Congress, The Hague, Holland, 1930. From the 1st to the 6th of September. Advance notice. General Secretary of the Congress, 3 Anna Paulownaplein, The Hague (Holland).

The Hague, [1929], pp. 12.

International airports. See Hanks : International airports.

International Civil Aeronautics Conference. The International Civil Aeronautics Conference at Washington.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 57-63.

- Representatives of nations throughout the World honor Orville Wright;

discuss civil aviation.

Aeronautic Review, Vol. 7, No. 1 (Jan. 1929), Washington, pp. 8, 17.

- See Mason, Ethel I. : The first International Aeronautics Conference.

International Commission for Air Navigation. The International Commission for Air Navigation.

The Aeroplane, Vol. 37, No. 25 (Dec. 18, 1929), London, p. 1395.

Internationale Gesellschaft zur Erforschung der Arktis mit Luetfahr-zeuegen. Verhandlungen der II. ordentl. Versammlung in Leningrad 18.-23. juni 1928 ; hrsg. im auftrage der geseilschaft von A. Berson und L. Breitfuss. Gotha, J. Perthes, 1929, pp. 76, ills., maps, diagrs. Ergänzungsheft Nr. 201 zu " Petermanns Mitteilungen."

Internationale Luftfahrt Ausstellung. Regulations for the International Aeronautical Exhibition, Berlin 1928, October 7th-28th. Berlin, B. Paul, 1928?, pp. 17, ill.

Investment. See Klemin, Alexander: Investing in aviation.

- See Van Strum, K. S. : Aviation industry investment problems.

Invincible. Invincible cabin monoplane.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, p. 108, ill.

Iron. See Hackett, W., jr. : Stainless steel and iron.

- See Robertson, Andrew, and A. J. Newport : Report on the drop of stress

at yield in Armco iron.

BIBIilOGBAPHY OP AERONAUTICS, 1929

109

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Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 827-845, ills., diagrs., tabls.

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Aer. Res. Comm., Rep. Mem., No. 1182 (Ae. 346), September 1928, London,

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Isacco, V. The helicogyre.

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Italia. The " Italia " airship enquiry.

Flight, Vol. 21, No. 10 (Mar. 7, 1929), London, p. 196.

- See Lundborg, Einar Paul Albert Muni: The Arctic rescue; how Nobile

was saved.

- See Lundborg, Einar Paul Albert Muni: När Nobile räddades; mina

upplevelser under den Svenska Spetsbergs expeditionen 1928.

Italy. Annuario ufficiale della r. Aeronautica ; 1929, a. VII. Ufficiali in s. p. e. e personale civile a ruolo. Ufficiali delle categorie in congedo.

Roma, Provved. gen. Stato. Liberia (stab, poligr. Amm. Stato), 1929, 2 voli., pp. lxxii, 309 ; xi, 120 con due tavole.

- Cronistoria della aeronautica militare Italiana. I. L'aeronautica militare Italiana dal 1884 alla guerra di Libia. II. L'aeronautica civile Italiana dalle origini al 1912. III. L'aeronautica militare nella campagna di Libia (Zona di Tripoli) (dal Settembre 1911 al 30 Aprile 1912). IV. L'aeronautica militare nella campagna di Libia (Zona di Tripoli) (dal 1 Maggio al 20 Ottobre 1912) (Le operazioni ad Horns, a Zuara e al confine Tunisino). V. L'aeronautica nella campagna di Libia. Le operazioni in Cirenaica Settembre 1911-Octtobre 1912. Relazioni e studi sull'impiego dell'aeronautica nella campagna di Libia. VI. L'aeronautica militare dalla conclusione della pace di Losanna con la Turchia (1912) a tutto il 1913.

Roma, Provveditorato Generale dello stato, Anno 6, 1928, Anno 7, 1929, I. pp. 137, ills. ; II. pp. 147, ills. ; III. pp. 188, ills. ; IV. pp. 197, ills. ; V. pp. 230, ills. ; VI. pp. 283, ills.

Italy. Les hydravions Italiens.

L'Aérophile, 37e année, Nos. 19-20 (ler-15 oct. 1929), Paris, pp. 298-299, ill.

- Italy arranges for price scale for port services.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, p. 452.

- Italy builds civil air service.

Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, ppt 296-297, ill.

- Norme per i direttori civili di aeroporto (Ministero dell'aeronautica;

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Roma, Provved. gen. Stato, Libreria (stab, poligr. Amm. Stato), 1929, pp. xi, 125 con tavola.

- Notiziario tecnico di aeronautica ; no. 1, gennaio 1929, a. VII (Minstero

dell'aeronautica).

Roma, Provved. gen. Stato, Libreria (Soc. an. poligr. Italiana), 1929, pp. 121.

- Ordinamento e attribuzioni degli uffici del ministero dell'aeronautica

(Ministèro dell'aeronautica).

Roma, Provved. gen. Stato. Libreria (stab, poligr. Amm. Stato), 1928, pp. 32.

- Le vie del cielo. Raccolta di scritti aeronautici [a cura di] Aldo Barbaro,

Mussolini, D'Annunzio, Italo Balbo [ecc].

Palermo, R. Sandron edit, tip., 1929, pp. 231 con diciassette tavole.

- See Balbo, Italo : Contributo dell'Italia alla navigazione aerea. Memoria

presentata al Congresso internazionale di aeronautica civile a Washington dalla delagazione gorvernativa italiana.

- See DeRitis, B. : The Italian aeronautical industry.

- See Giacomelli, R. : An historical survey of Italian aeronautics.

- See Negro, Piero [Pierre la Pipe] : Annuario della aviazione civile italiana autorrizato dal ministero dell'aeronautica ; anno 1, 1929-30 e. f., VII.

- See Toschi, Umberto : Lineamenti di una geografia del traffico aereo.

J

J-5. See Weick, F. E. : The drag of J-5 radial air-cooled engine.

Jack am an , A. C. A. Laying out an aerodrome.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1049-1056, ill., diagr.

Jacobs, A. M. " Over the hump."

Popular Aviation and Aeronautics, Vol. 4, No. 2 (Feb. 1929), Chicago, pp. 15-18, 97, ill.

- Will she fly?

Pop. Mech., Vol. 51 (Mar. 1929), Chicago, pp. 378-385, ill.

Jacobs, Eastman N. The drag and interference of a nacelle in the presence of a wing.

National Advisory Committee for Aeronautics, Technical Notes No. 320, Oct. 1, 1929, Washington, October 1929, pp. 12, ills., diagrs.

- Investigation of air flow in open-throat wind tunnels.

National Advisory Committee for Aeronautics, Report No. 322, Sept. 30, 1929, Washington, United States Government Printing Office, pp. 11, ills., diagrs.

- Pressure distribution on a slotted R. A. F. 31 airfoil in the variable

density wind tunnel.

National Advisory Committee for Aeronautics, Technical Notes No. 308, June 28, 1929, Washington, June 1929, pp. 13, ills., diagrs., tabi.

Jacobs, Eastman N. Sphere drag tests in the variable density wind tunnel.

National Advisory Committee for Aeronautics, Technical Notes No. 312, Aug. 13, 1929, Washington, August 1929, pp. 10, ills., diagrs.

jAFFBUX-TissoT. See Hirschauer, L., et Gh. DoUfus: L'année aéronautique 1928-1929.

Jahebuch. Jahrbuch 1929 der Deutschen Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof. Herausgegeben vom vorstand Wilh. Hoff, Ottfried v. Dewitz, Georg Madelung.

München, Druck von R. Oldenbourg [1929], pp. 480, ills., diagrs., tabls.

James,' Edmund. How I built my glider. An amateur tells of his successful experiment in constructing and flying a glider. ,

Scient. Amer., Vol. 140, No. 3 (March 1929), New York, pp. 222-223, ill.

James, Ivor E. A simple method of constructing and dimensioning elliptic fuselage sections.

Aircraft Engineer suppl. Flight, Vol. 21, No. 30 (July 25, 1929), London, pp. 778d.

Jamieson, L. S. Fighters of the air.

Pop. Mech., Vol. 51 (Apr. 1929), Chicago, pp. 546-551, ill.

- Flying blind :

Pop. Mech., Vol. 51 (Feb. 1929), Chicago, pp. 194-198, ill., diagr.

Japan. See Haering, George J. : Civil aeronautics in Japan.

- See Parkes, Oscar : Japan's new navy. [Aircraft carriers "Akagi " and

"Kaga."]

Jarrier, M. Vieillissement en service des tissus de soie destinés a la confection des parachutes.

L'Aéronautique (L'Aérotechnique, 7e année, No. 74), lime année, No. 117 (fév. 1929), Paris, pp. 53, diagrs.

Jarry, J. La sécurité de construction.

La Vie Aérienne, 15e année, No. 96 (avril 1929), Paris, pp. 10-12, ill.

Jeffrey, C. D. G. Aerial navigation.

Aeronautics, Vol. 5, No. 4 (Oct. 1929), pp. 29, 30, 80, ill.-

Jenkin, C. F., and G. D. Lehmann. High-frequency fatigue.

Aer. Res. Comm., Rep. Mem., No. 1222 (M. 62), December 1928, London, 1929, pp. 34, ills., diagrs., tabls.

Jenkins, Charles Francis. Radiomovies, radiovisión, television.

Washington, D. C, National Capital Press, inc., 1929, pp. 143, ill.

Jennings, W. G. Determination of the twist of a wing of an aeroplane in flight.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, 412-416, diagr., tabls. (R. & M. No. 1202).

- Full-scale determination of the effect of high tip speeds on the performance of an airscrew.

Aer. Res. Comm., Rep. Mem., No. 1173 (Ae. 337), August 1928, London, 1929, pp. 10, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 373-382, diagrs.

- Full-scale tests of a standard Bristol fighter aeroplane fitted with " Pilot

planes " at the wing tips.

Aer. Res. Comm., Rep. Mem., No. 1191, (Ac. 353), September 1928, London 1929, pp. 5, ills., diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 810-814, ills., diagr.

Jennings, W. G. Full-scale tests of Bristol fighter aeroplane with R. A. F. 30 wings, fitted with " Pilot planes " at the wing tips.

Aer. Res. Comm., Rep. Mem., No. 1205 (Ae. 366), August 1928, London, 1929, pp. 4, ill., diagr.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 806-809, ill., diagr.

- See Clark, K. Vv\, and W. G. Jennings: Full-scale determination of the

motion of an Avro aeroplane when stalled.

Joachim, William F., and A. M. Rothrock. Fuel-vapor pressures and the relation of vapor pressure to the preparation of fuel for combustion in fuel injection engines.

National Advisory Committee for Aeronautics, Report No. 321, Sept. 25, 1929, [Washington], pp. 13, ills., diagrs.

Johansen, F. C. Flow through pipe orifices at low Reynolds numbers.

Aer. Res. Comm., Rep. Mem., No. 1252 (Ae. 402), June 1929, London, 1930, pp. 24, ills., diagrs., tabls.

- See Lock, C. N. H., and F. G. Johansen: Pressure plotting a streamline

body with tractor airscrew running.

Johns, Edward. The Oriole sport plane.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, p. 122, ill.

Johns, Russell C. Observations at the National Air Races and exposition. Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 66-72, ill.

Johnson, C. D. See Tuckerman, L. B., S. N. Petrenko, and C. D. Johnson: Strength of tubing under combined axial and transverse loading.

Johnson, G. R. Flying in the land of the Incas.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 57-60, 352, 354, ill., map.

Johnson, J. B. Oxy-acetylene welding in the aircraft industry.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 49-53, ill.

Johnson, Lawrence. See Bull, H., and Lawrence Johnson: Welding of stainless materials.

Johnson, P. G. Aviation's varied uses in business.

Magazine of Business, Vol. 55 (May 1929), Chicago, pp. 534-536, ill.

Johnstone, R. E. Metal work in building airplanes.

Amer. Mach., Vol. 71, No. 17 (Oct. 24, 1929), New York, pp. 699-702, ill.

Jones, Bradley. Chance versus skill.

u. S. Air Services, Vol. 14, No. 6 (June 1929), Washington, D. c, pp. 26-28.

-- Credos and crashes.

u. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. C. pp. 34-36,

ill.

- High temperature cooling.

u. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 34-37, ill.

- The questions are answered.

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, pp. 19-23. ill.

- Some lone eaglets.

u. S. Air Services, Vol. 14, No. 5 (May 1929), Washington, D. C, pp. 23-27, ill.

- Spinning into glory.

u. S. Air Services, Vol. 14, No. 11 (Nov. 1929), Washington, D. C, pp. 38-40.

Jones, B. Melvill, and C. E. Maitland. Instrumental records of the lateral motions of a stalled Bristol fighter aeroplane.

Aer. Res. Comm., Rep. Mem., No. 1181 (Ae. 345), September 1928, London, 1929, pp. 11, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 2, London, 1929, pp. 645-655, diagrs.

Jones, B. Melvill. Skin friction and the drag of streamline bodies.

Aer. Res. Comm., Rep. Mem., No. 1199 (Ae. 360), December 1928, London, 1929, pp. 12, ills., diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 439-450, ills., diagrs.

- The streamline aeroplane.

Aircraft Engineer, suppl., Flight, Vol. 21, No. 5 (Jan. 31, 1929), London, pp. 82f-82h.

Journ. Roy. Aer. Soc, Vol. 33, No. 221 (May 1929), London, pp. 358-385, diagrs.

Jones, C. All in a day's work.

Sat. Even. Post, Vol. 201 (Feb. 2, 1929), Philadelphia, pp. 38-44, ill.

Jones, Charles Sheeman. The value of airplane racing and the stock model. Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 422-424, ill.

- See Wright, Milton: Builders of the aviation industry.

Jones, E. T. The distribution of pressure over a section of an airscrew blade in flight, and the variation of lift coefficient with the speed of the section. Aer. Res. Comm., Rep. Mem., No. 1256 (Ae. 405), February 1929, London, 1929, pp. 23, illus., diagrs., tabls.

- Flight tests on an Atlas fitted with automatic slots connected with the

ailerons and some data relevant to the design of auto-slots for R. A. F. 23 section wing.

Aer. Res. Comm., Rep. Mem., No. 1260 (Ae. 409), March 1929, London, pp. 8, ills., diagrs.

- Measurement of landing loads.

Aer. Res. Comm., Rep. Mem., 1246 (Ae. 399), April 1929, London, 1929, pp. 8, ills., diagrs., tabl.

Jones, E. T., and K. W. Clark. Wind tunnel tests for design of an automatic slot for Avro 504. N.

Aer. Res. Comm., Rep. Mem., No. 1192 (Ae. 354), May 1928, London, 1929, pp. 11, illus., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 2, London, 1929, pp. 709-719, illus., diagrs., tabls.

Jones, H. A. The war in the air.

New York, Oxford Univ. Press, 1928. Vol. II.

Jones, m. The streamline aeroplane.

Flight, Vol. 21, No. 5 (Jan. 31, 1929), London, pp. 6-8.

Jones, R., and A. H. Bell. The distribution of pressure over the hull and fins of a model of the rigid airship R. 101, and a determination of the hinge moments on the control surfaces.

Aer. Res. Comm., Rep. Mem., No. 1169 (Ae. 333), July 1927, London, 1929, pp. 37, diagrs., tabls.

Aeronautics. Techn. Rept. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 507-543, ills., diagrs., tabls.

- Experiments on a model of the airship R. 101.

Aer. Res. Comm., Rep. Mem., No. 1168 (Ae. 332), September 1926, London, 1929, pp. 27, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 480-506, illus., diagrs., tabls.

Jork. See Owen, John T. : Jorr process castor-oil lubricant.

Jouglard, P. Notes techniques d'un passager.

L'Aéronautique, lime année, No. 121 (juin 1929), Paris, pp. 180-182, ill.

Joukowsky. See Alexandrow, W. : Die Joukowskysche Wirbeltheorie des Propellers und ihre Verwendung zur Berechnung von Luftschrauben.

- See Fage, A., V. M. Falkner, and W. S. Walger : Experiments on a series

of symmetrical Joukowski sections.

Jünger, Ernst. Luftfahrt ust Not !

Berlin, Verlag Wilhelm Andermann, 1928, pp. 400.

Julien, Robert H. Your airport must be modern.

Airway Age, Vol. 10, No. 9 (Sept. 1929), New York, pp. 1398-1400, ill.

Junkers. Junkers.

Berlin, V. D. I. Verlag G. m. b. H.

- The Junkers G. 38.

Plight, Vol. 21, No. 48 (Nov. 29, 1929), London, 1264, ill.

- A new Junkers commercial monoplane.

Flight, Vol. 21, No. 6 (Feb. 7, 1929), London, p. 100, ill.

Junkers, Hugo. Hugo Junkers 70 jahre alt.

Illustrierte Flug-Woche, 11. Jahrg., Heft 1, 1929, Berlin-Lichterfelde, pp. 1-3, port.

- Professor Dr. e. h. Hugo Junkers 70 Jahre ait.

Die Luftwacht, Heft 2, Feb. 1929, Berlin, p. 53, port.

- Professor Dr. Ing. E. H., Dr. Phil. H. E. Hugo Junkers 70 jahre.

Aëronautica, Vol. 3, No. 2 (Feb. 1929), Amsterdam, Holland, pp. 30-32, port., ill.

- See Berson, A. : Junkers ; Festschrift.

Jupiter. American-built Jupiter.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 208-212, ill.

- Where Jupiters are made.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 13 (Mar. 27, 1929), London, p. 492.

K

K 37. See A. B. Flyindustri: The A. B. Flyindustri " K 37" (Swedish

Junkers). A low-wing all-metal military airplane. K 47. See A. B. Flyindustri: The " K47 " of the A. B. Flyindustri. An

armored pursuit monoplane. Kaga. See Parkes, Oscar : Japan's new navy. [Aircraft carriers "Akagi " and

" Kaga."]

Kaiser, Wilhelm. Blutkreislauf-Untersuchungen im Unterdruck.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 41-43, ills.

- Die Sauerstoffdrosselung in der Atemluft bei Atmosphärendruck (Stickstoffnarkose).

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 114-118, ills.

- Uberänderungen des Blutkreislaufs im Uberdruck.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], p. 156, ill., diagr.

- Über Veränderungen des Blutreislaufs im Überdruck.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 4. Heft (28. Feb. 1929), München, pp. 96-97, ill., diagr.

Kamm, Wunibald, und Albert Stieglitz. Schwingungsuntersuchungen an der Maschinen anläge des Luftschiffes " Graf Zeppelin."

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 18. Heft (28. Sept. 1929), München, pp. 465-474, ills., diagrs.

Kansas, Kansas leads in airplane factories.

u. S. Air Services, Vol. 14, No. 5 (May 1929), Washington, D. C, p. 56.

- See Deane, Jack: The second Kansas air tour. State-wide benefits to

aeronautics result from N. A. A. activity.

Kansas City. See Burtt, Robert M.: Kansas City becomes air-minded.

Kappes, Carl. Flight instruction at the Klemm school.

Aviation, Vol., 26, No. 8 (Feb. 23, 1929), New York, pp. 559-561, ill.

Kari-Keen Coupe. Kari-Keen coupe.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, p. 78, ill.

KArman. See Glauert, H.: The characteristics of a Kärmän vortex street in a channel of finite breadth.

- See Tomotika, Susumu: On the stability of Kärmän vortex street in a

channel of finite breadth, I.

KArman, Th. von. The impact on seaplane floats during landing.

National Advisory Committee for Aeronautics, Technical Notes No. 321, Oct. 4, 1929, Washington, October 1929, pp. 8, ill.

Katzmayr, Richard. Aeromechanical experimentation (Wind tunnel tests).

National Advisory Committee for Aeronautics, Technical Memorandums No. 508, April 11, 1929, Washington, April 1929, pp. 16, ills. From Luftflotten, 1928.

- Travel of the center of pressure of airfoils transversely to the air stream.

National Advisory Committee for Aeronautics, Technical Memorandums No. 530, Sept. 16, 1929, Washington, September 1929, pp. 14, ills., diagrs., tabls.

From Berichte der Aeromechanischen Versuchsanstalt in Wien Volume I, No. 1, 1928.

- Wings with nozzle shaped slots.

National Advisory Committee for Aeronautics, Technical Memorandums No. 521, June 11, 1929, Washington, July 1929, pp. 28, ills., diagrs., tabls. From Berichte der Aerodynamischen Versuchsanstalt in Wien, Vol. 1, No. 1 (1928).

Kearley, N. E. Analytical review of the aero engine exhibits at Olympia.

Aircraft Engineer suppl. Flight, Vol. 21, Nos. 35, 39, 43, 48, 52 (Aug. 29, Sept. 27, Oct. 25, Nov. 29, Dec. 27, 1929), London, pp. 920e-920f, 1056a-1056c. 1140g-1140h, 1262g-1262h, 1348e-1348g.

Keating, Edith. See Yates, B.: Edith Keating is paid to look down on the human race.

Keith, L. The knock-down plane.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, p. 28. Kelley, Leon. Efliciency the keynote to progress.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 55-56, 292-298, ill.

Kelly, Jim. See Greene, D. B.: Messages from the sky. A narrative of what Reg and Jim thought and did while breaking and making a new world record.

Kerr, P. S. Fuel flowmeters designed to measure mass flow.

Aen Res. Comm., Rep. Mem., No. 1245 (E. 31), January 1929, London, 1929, pp. 14, ills., diagrs., tabls.

Keulegan, Garbis Hovannes. Investigation of damping liquids for aircraft instruments.

National Advisory Committee for Aeronautics, Report No. 299, April 5, 1929, Washington, United States Government Printing Office, 1929, pp. 24, ills., diagrs., tabls.

Keyhoe, Donald E. Aeronautics branch of the Department of Commerce.

Aviation, Vol. 26, Nos. 17, 19, 20, 21, 23 (Apr. 27, May 11, 18, 25, June 8, 1929), New York, pp. 1432-1433, 1605-1607, 1693-1696, 1794-1796 1987-1988.

- Is air travel safe?

Sat. Even. Post, Vol. 202 (Oct. 5, 1929), Philadelphia, pp. 10-11, ill.

- Short sketches of the Aeronautics Branch personnel.

Aviation, Vol. 27, No. 2 (July 13, 1929), New York, pp. 142-145, ill.

Keys, Clement Melville. Aviation and its future.

TJ. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, D. C, pp. 43, 44-48, ill.

- Harriman of aviation, C M. Keys.

Review of Reviews, Vol. 80 (Aug. 1929), New York, pp. 118-120.

- See Gwinn, S. : Aviation is about to become of age. Interview with C. M.

Keys.

- See Wright, Milton : Builders of the aviation industry.

Keystone-Loening. Keystone-Loening two-seater military amphibian.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, p. 58, ill.

Kie-Wee. The sport of the Gods. American interest in racing planes is centered in a handful of citizens.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, pp. 19, 27, ills.

Kilneb, Walter G. An air line to Baguio. Opportunity awaits a progressive firm to render a service to humanity.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 31, 55, ill.

- Flying in the Philippines. Where aviation still is fraught with the

unknown and the unexpected.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, pp. 9-11, 28, ill.

King's Cup. The King's Cup air race.

Flight, Vol. 21, No. 24 (June 13, 1929), London, pp. 482-483, map.

- The King's Cup Race and Siddeley trophy tour.

Flight, Vol. 21, No. 27 (July 4, 1929), London, pp. 533-540, ill., map.

- 1929 King's Cup Race.

Flight, Vol. 21, No. 28 (July 11, 1929), London, pp. 651-657, ill.

- On the King's Cup race.

The Aeroplane, Vol. 37, No. 2 (July 10, 1929), London, pp. 41-55. ill.

Kingsford-Smith, Charles E., and C. T. P. Uhm. The flight of the Southern Cross. With a foreword by His Excellency, The Right Honorable Lord Stonehaven.

New York, National Travel Club, 1929, pp. xii, 295, ills., map. Australian edition Story of " Southern Cross " trans-Pacific flight, 1928.

Kirschner, A. Der Auftrieg des Britischen Reiches zur Luftgrossmacht. The rise of the British Empire to a leading air power.

Die Luftwacht, Heft 7, Juli 1929, Berlin, pp. 294-297, ill.

- Luftpolitische Rundschau.

Die Luftwacht. Heft 2-6, Feb.-June 1929, Berlin, pp. 54-57, 102-104, 150-152, 198-200, 246-248, map.

- Das Weltflugwesen im Jahre'1928. II. Luftrüstungen.

Die Luftwacht, Heft 1, Jan. 1929, Berlin, pp. 26-32, ill., map.

Kirste, Léon. Étude comparative des poids de construction d'un monoplan et d'un biplan.

Paris, 1928, pp. 24.

Kiestb, Léon. Note sur le calcul des ailes épaisses.

L'Aéronautique (L'Aérotechnique, 7e année., No. 75) lime année, No. 118 (mars 1929), Paris, p. 85, ill.

Kitty Hawk, N. C. Kitty Hawk 25 years after the event.

U. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, pp. 28-31, ill.

- Twenty-fifth anniversary of the first airplane flight. Proceedings at the

exercises held at Kitty Hawk, N. C, on December 17, 1928, in commemoration of the twenty-fifth anniversary of the first flight of an airplane made by Wilbur and Orville Wright.

Washington, TJ. S. Government Printing Office, 1929, pp. xiii, 29, 70th Cong., 2d session. House. Doc. 520.

- See Neely, Frederick R. : N. A. A. marks site of first airplane flight with

impressive ceremonies at Kitty Hawk.

Klaiber, E., und W. Lippart. Die elektrische Ausrüstung des Kraftfahrzeugs. Teil I : Zündung.

Berlin, Verlag M. Krayn, 1928, pp. xiv, 237.

Kleffel, W., und W. Schulze. Die Zeppelinfahrt. Berlin, Verlag Ullstein, 1928, pp. 191.

Klemin, Axexandee, and George F. Titterton. Airplane stress analysis.

New .York, The Ronald Press Company [1929], pp. xi, 277, diagrs.

Klemin, Alexander. American passenger air transport.

Scient. Amer., Vol. 141, Nos. 4, 5 (Oct.-Nov. 1929), New York, pp. 324-329, 404-407, ill., diagr., maps.

- If you want to fly, The Boys' book of aviation. Introduction by Harry

F. Guggenheim.

New York, Coward-McCann, 1929, pp. IX, 240, ill.

- Investing in aviation. The recent boom in the aviation industry had

made it doubly necessary for the prospective investor to investigate the situation thoroughly.

Scient. Amer., 140, No. 2 (Feb. 1929), New York, pp. 148-153, ill.

- Learning to use our wings. Latest facts about airplanes and airships.

A new cooling system. The helicogyre. A flush instrument board. The Lehigh airport competition. Eaglerock bullet. Airplanes make pastures of cut-over timberlands. Our first army pilot. How long will an engine last? The Boeing 80-A. Airport sign and signal.

Scient. Amer., Vol. 141, No. 1 (July 1929), New York, pp. 70-73, ill.

- Learning to use our wings. A new type of landing field. Dinghies for

flying boats. Vertical heat-treating furnace. 135 passengers. An aviation ticket office. Aviation law. Studying parachute jumps. An ice-warning indicator. Future of the air mail. A novel compass compensator.

Scient. Amer., Vol. 140, No. 3 (March 1929), New York, pp. 258-259, ill.

-. Learning to use our wings. Latest facts about airplanes and airships.

Handley-Page slot mechanisms. Certification of private lights. A successful metal-clad airship. Physiological effects of the spin.

Scient. Amer., Vol. 141, No. 5 (Nov. 1929), New York, pp. 436-437, 454-455,

ill.

- Learning to use our wings. The Chicago air show. ILA. Gas holder as

aviation " Lighthouse."

Scient. Amer., Vol. 140, No. 2 (Feb. 1929), New York, pp. 168-170, 182, ill.

Klemin, Axexandee. Planes for private flying. A comprehensive survey of the aviation field as it concerns the individual who desires to purchase a plane for personal use.

Scient. Amer., Vol. 140, No. 3 (March 1929), New York, pp. 206-215, ill.

- Progress in aeronautics.

Mech. Eng., Vol. 51, No. 1 (Jan. 1929), New York, pp. 5-13, ill.

- See American Society of Mechanical Engineers: Progress in aeronautics.

Klemm school. See Kappes, Carl: Flight instruction at the Klemm school.

Kligman, A. D. Aerodynamic trend in design.

Airway Age, Vol. 10, No. 8 (Aug. 1929), New York, pp. 1192-1197, ill.

Knatjth, Arnold Whitman, Henry Greene Hotchkiss, and Emory Hamilton Niles. 1928 United States aviation reports. " Tempus fugit; tempore fugit homo." 1928 U. S. Av. R.

Baltimore, united States Aviation Reports, inc., 1928, pp. 670.

Kneen, Orvtlle H. Poison from the air.

Airway Age, Vol. 10, No. 8 (Aug. 1929), New York, pp. 1218-1220, ill.

Knerr, Horace C. Elektrisch geheizte Ofen zur Warmbehandlung von fertigen Konstruktionsteilen für Flugzeuge.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 22. Heft (28. Nov. 1929), München, pp. 594-595.

- Saving weight at low cost.

Aviation, Vol. 27, No. 22 (Nov. 30, 1929), New York, pp. 1073-1074, ill.

Knight, Clayton. The nonstop stowaway. Minneapolis, Buzza Co., 1929.

- Pilots' luck.

Philadelphia, David McKay Co., 1929.

Knight, Montgomery, and Richard W. Noyes. Wind-tunnel pressure distribution tests on a series of biplane wing models. Part I. Effects of changes in stagger and gap.

National Advisory Committee for Aeronautics, Technical Notes No. 310, June 10, 1929, Washington, July 1929, pp. 13, ills., diagrs., tabl.

- Wind-tunnel pressure distribution tests on a series of biplane wing models.

Part II. Effects of changes in decalage, dihedral, sweepback, and overhang.

National Advisory Committee for Aeronautics, Technical Notes No. 325, Oct. 29, 1929, Washington, October 1929, pp. 6, ills., diagrs.

Knight, Montgomery, and Millard J. Bamber. Wind-tunnel tests on a model of a monoplane wing with floating ailerons.

National Advisory Committee for Aeronautics, Technical Notes No. 316, Sept. 10, 1929, Washington, September 1929, pp. 13, ills., diagrs., tabls.

Knight, Montgomery, and Carl J. Wenzinger. Wind-tunnel tests on a series of wing models through a large angle of attack range. Part I—Force tests. National Advisory Committee for Aeronautics, Report No. 317, Nov. 13, 1929, [Washington], pp. 49, ills., diagrs., tabls.

Knight, Montgomery and Millard J. Bamber. Wind-tunnel tests on airfoil boundary layer control using a backward opening slot.

National Advisory Committee for Aeronautics, Technical Notes No. 323, Oct. 15, 1929, Washington, October 1929, pp. 6, ill., diagrs.

Knight, R. L. Making Micarta airplane propellers.

Machinery, Vol. 35, No. 6 (Feb. 1929), New York, pp. 409-411, ill.

Knoll. Knoll KN-1 cabin plane.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 102, ill.

Kobayasi, Tatuo, Kinmatu Simamuba and Tattjo Koyama. Application of the inverse Wiedemann effect to torque measurements and to torque variation recordings.

Report of the Aeronautical Research Institute, Tokyo Imperial University No. 52 (Vol. 4, 11), (Nov. 1929), Tokyo, pp. 425-445, ills., diagrs.

Külzer, Joseph. Neue Methoden zur Erzielung von Windmessungen in grossen Höhen hei Nacht.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 8. Heft (29. April 1929), München, pp. 195-200, ills., diagrs., tabls.

Koppen, Joachim v. Die Aufgaben des Kunstfluges.

Die Luftwacht, Heft 2, Feb. 1929, Berlin, pp. 66-68.

Kollinek. Druckluftbremse für Landflugzeuge.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 21. Heft (14. Nov. 1929), München, pp. 566-567, ill.

Kollinek, T. Druckluftbremse und Druckluftlenkung fuer Landflugzeuge. Luftfahrt, 33. Jahrg., Nr. 5 (7. März 1929), Berlin, pp. 71-73, ill.

- Druckluft-Bremsung und Steuerung rollender Flugmaschinen.

Motorwagen, Bd. 32, Nr. 6 (28. Feb. 1929), Berlin, pp. 125-128, ill.

KooLHovER. The Koolhover F. K. 40.

The Aeroplane, Vol. 37, No. 23 (Dec. 4, 1929), London, p. 1286, ill.

Kopp, W. Danger of ice formation on airplanes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 499, Feb. 7, 1929, Washington, Feb. 1929, pp. 14, diagr., tabls.

Koppe, Heinrich. Die Bedeutung der Messtechnik für die Luftfahrt.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 69-89, ills., diagrs.

- Von den Gefahren des Luftmeeres.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 14. 15. 20. Heft (31. Juli. 28, Okt. 1929), München, pp. 367-375, 529-531, ill.

Korvin-Kroukovsky, B. V. The high altitude airplane.

Aeronautical Engineering Section, Aviation, Vol. 26, No. 20 (May 18, 1929), New York, pp. LXXVIII-LXXIV, diagr.

Koschel, E. Über den Höhenrekordflug Neuenhofens.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 14. u. 15. Heft. (31. Juli 1929), München, pp. 393-394.

Koyama, Tatuo. See Kobayasi, Tatuo, Kinmatu Simamura and Tatuo Koyama: Application of the inverse Wiedemann effect to torque measurements and to torque variation recordings.

Koyeman, A. Airplane efficiency.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 428-430, ill.

Koyemann, Alfred. Über den Einfluss der Profilwiderstandspolare auf die Flugleistungen.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 21. Heft (14. Nov. 1929), München, pp. 558-562, diagrs., tabls.

Kraemer, Otto. Untersuchung über den Einfluss von Aufbau und Faserverlauf auf Zugfestigkeit, Biegung und Dehnung an Birkenfurnieren und Birkensperrholz.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V. Berlin-Adlershof, München, [1929], pp. 211-220, ills., diagrs., tabls.

- See Rackwitz, Erich, Erich K. O. Schmidt, und Otto Kraemer: Über den

Schutz von Sperrholz gegen Feuchtigkeitsaufnahme durch Paraffinvorbehandlung.

Kredel, Eenst. Die deutsche Handelsluftfahrt.

Hannover, Adolf Sponholtz-Verlag, 1929.

Kbele, O. Contributions to the technique of landing large airships.

National Advisory Committee for Aeronautics, Technical Memorandums Nos. 512 and 513, May 16, 1929, Washington, May 1929, Part I, pp. 26, ills. ; Part II, pp. 29, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt September 28, 1928.

Keeutzee. Kreutzer tri-motored air coach.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 128, 130, ill., diagr.

- See McReynolds, Charles F. : The Kreutzer air coach.

Keöbeb, G. See Flachsbart, O., und G. Kröber : Experimentelle Untersuchungen an schäg angeblasenen Schraubenpropellern.

Kbügee, Kuet, und Hans Plendl. Über die Ausbreitung der kurzen Wellen bei kleiner Leistung im 1000-Kilometer-Bereich.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, e. V., Berlin-Adlershof, München, [1929], pp. 223-229, ills., diagrs., tabls.

Kuchel, Ludwig. Autogenous welding in airplane construction.

National Advisory Committee for Aeronautics, Technical Memorandums No. 523, July 25, 1929 (mimeographed), Washington, July 1929, pp. 8, ills. From Schweissen, Schneiden und Metallspritzen mittels Acetylen, 1927.

Kuckee, M. S. See Taylor, C. Fayette, and M. S. Kuckle : Heat flow in aircraft engine pistons.

Küssneb, Hans Georg. Schwingungen mehrfach gestützter Stäbe mit Axialkräften.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, e. V., Berlin-Adlershof, München, [1929], pp. 335-339, ills., diagrs., tabls.

- Schwingungen von Flugzeugflügeln.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Aldershof, München, [1929], pp. 313-334, ills., diagrs., tabls.

Kuethe, A. M. See Dryden, H. L., and A. M. Kuethe: The measurement of fluctuations of air speed by the hot-wire anemometer.

Kulebakin, V. S. Lichtreflexion von rotierendon Propellern.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 22. Heft (28. Nov. 1929), München, pp. 586-590, ills.

Kurlbaum, Georg. See Fassbender, Heinrich, und Georg Kurlbaum: Abhängigkeit der Reichweite sehr kurzer Wellen von der Höhe des Senders über der Erde.

Küster, W. Gordon. Alabama air tour.

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 42-43, ills.

- The civic organization's part in local airport programs.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 74, 270-274.

L

L. J. Une polémique sur l'avenir de l'aviation marchande.

L'Aéronautique, lime année, No. 118 (mars 1929), Paris, pp. 95-98.

- Le voyage de comte de La Vaulx Amérique du Sud.

L'Aérophile, 37e année, Nos. 9-10 (ler-15 mai 1929), Paris, p. 131.

L. Z. 172. See Dollfus, Charles: Apropos des derniers voyages du Zepplein L. Z. 172.

La Battle. The La Baule seaplane meeting.

Flight, Vol. 21, No. 38 (Sept. 20, 1929), London, pp. 1030-1033, 1045, ill.

- Le meeting de La Baule.

L'Aérophile, 37e année, Nos. 19-20 (ler-15 oct. 1929), Paris, pp. 291-293, ill.

- See Flandin, P.-E. : Le meeting de La Baule.

La Vatjlx. Louis Capazza.

L'Aérophile, 37e année, Nos. 1-2 (ler-15 jan. 1929), Paris, p. 19.

- See Blanchet, Georges : Aéronautes contemporains. Le comte de La Vaulx,

Laboratories. Laboratory methods in aeronautics.

Aero Digest, Vol, 15, No. 6 (Dec. 1929), New York, pp. 57, 276, ill.

- See Tanner, T. : Some laboratory methods of aerodynamic investigations.

Laomann, Otto. Einige Nomogramme un andere Hilfsmittel für die Luftbildmessung.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V. Berlin-Adlershof, München [19291, pp. 49-58, ills., diagrs.

Lafayette Escadrille. See Hall, Bert, and John J. Niles : One man's war ; the story of the Lafayette Escadrille.

Laird, E. M. Do airplane races stimulate airplane sales?

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 436-437, ill.

Lajolo, Guido. Le capotage rationnel des moteurs refroidis par l'air.

L'Aéronautique (L'Aérotechnique, 7e année Nos. 77 et 78), lime année, No. 121 (juin 1929), Paris, pp. 205-207, ill.

Lallier, Roger. Après la Coupe Schneider.

L'Aérophile, 37e année, Nos. 19-20 (ler-15 oct. 1929). Paris, pp. 295-296.

- Avec Thoret autour du Mont Blanc.

L'Aérophile, 37e année, Nos. 3-4 (ler-15 fév. 1929), Paris, pp. 37-38, ill.

- Mes lunettes.

L'Aérophile, 37e année, Nos. 17-18 (ler-15 sept. 1929), Paris, p. 275.

Lamarche, Paul E., Jr. A caterpillar landing gear for airplanes.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, p. 88, ill.

- International light plane contest.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 84-85, 256, ill.

- The light airplanes of France.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 154-164, ill., diagr.

Lamb, H. The hydrodynamic forces on a cylinder moving in two dimensions.

Aer. Res. Comm., Rep. Mem., No. 1218 (Ae. 377), February 1929, London, 1929, pp. 5.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 184-188.

- Note on the forces experienced by ellipsoidal bodies placed unsymmet-

rically in a converging or diverging stream.

Aeronautics. Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 114-117, ills.

- On the flow of a compressible fluid past an obstacle.

Aeronautics, Techn. Rep. Aer. Res. Comm., 1928-1929, Vol. 1, London, 1929, pp. 76-80.

Lambert, B. E. See Hardecker, John F., and B. E. Lambert : Airplane weight control.

Lamé, M. L'avion hélicoptère.

L'Aérophile, 37e année, Nos. 19-20 (ler-15 oct. 1929), Paris, p. 296.

- Les nouveaux moteurs d'aviation.

L'Aérophile, 37e année, Nos. 1-4 (ler-15 jan.-ler-15 fêv. 1929), Paris, pp. 20-26, 55-57, ills.

- Tuyauteries et raccords.

L'Aérophile, 37e année, Nos. 7-8 (ler-15 avril 1929), Paris, pp. 114-115, ill.

Lancaster, W. N. With an Avro "Avian" ("Cirrus" MKIII) in America. Flight, Vol. 21, No. 11 (Mar. 14, 1929), London, p. 215, ill., map.

Landing. See Breguet, Louis : Landing and braking of airplanes.

- See Castner, F. : Pneumatic braking and steering device for landing

airplanes.

- See Krell, O. : Contribution to the technique of landing large airships.

- See Reid, Elliott G. : An analysis of airplane landing speeds.

- See Sipp, Edward A. : Influence of landing lights on air speeds.

- See Spieweck, Bruno: Photogrammetric take-off and landing measurements.

Landing fields. See Airports : Airports and landing fields.

- See Klemin, Alexander : Learning to use our wings. A new type of landing field.

Landing gear. Un atterrisseur oléo-pneumatique nouveau.

L'Aéronautique, lime année, No. 117 (fév. 1929), Paris, pp. 39-40, ill.

- Fritsch landing gear.

Scient. Amer., Vol. 140 (May 1929), New York, p. 456, ill.

- See Lamarche, Paul E., jr. : A caterpillar landing gear for airplanes.

- See Messier: Freins Messier pour roues d'avions.

- See Newell, Joseph Shipley : The testing of landing gears.

- See Niles, Alfred Salem : The design of landing gear.

- See Suffrin-Hébert, M. : L'amortisseur olêo-pneumatique Messier.

- See Suffrin-Hébert, M. : Les amortisseurs de la Société Métallurgique de

l'Ariège.

- See Vickers : Les éléments Vickers pour atterrisseurs.

Landing loads. See Jones, E. T. : Measurement of landing loads.

Lane, D. R. For safe, on-time flying.

Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, pp. 285-288, ill.

- The human element in flying.

Airway Age, Vol. 10, No. 8 (Aug. 1929), New York, pp. 1208-1210, ill.

- Maddux air lines operations.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1776-1778, ill.

- Operating methods of Boeing transport.

Airway Age, Vol. 10, Nos. 4-5 (Apr.-May 1929), New York, pp. 436-438, 626-629, ill.

- Radio on the Byrd and Wilkins planes.

Aviation, Vol. 26, No. 8 (Feb. 23, 1929), New York, pp. 556-558, ill.

Langer, R. Die Luftfahrt-Wissenschaft auf der Internationalen Luftfahrt-Ausstellung in London (International Aero Exhibition Olympia).

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 17. Heft. (14. Sept. 1929), München, pp. 440-443, ill.

Langley Field. See National Advisory Committee for Aeronautics.

Langsdobff, Werner v. L Z 127 Graf Zeppelin. .

Frankfurt a. M., Verlag H. Bechhold, 1928, pp. 80, ill.

- Taschenbuch der Luftflotten. 1928-29.

Frankfurt a. M., Bechhold Verlag, pp. 648, il.

Lapresle, A. Aérodynamique.—Nouveau principe d'établissement des grandes souffleries aérodynamiques.

C. R. Acad. Sei., T. 189, No. 17 (21 oct. 1929), Paris, pp. 632-633.

- French wind tunnel methods.

Journ. Roy. Aer. Soc, Vol. 33, No. 226 (Oct. 1929), London, pp. 838-877, ills., diagrs.

Larkin. An Australian monoplane for the private owner. (Lascoter.) Flight, Vol. 21, No. 32 (Aug. 8, 1929), London, p. 855, iU.

Lateral control. See Irving, H. B., and A. S. Batson : Some early model experiments of devices for improving lateral control near the stall.

Latin America. Aviation in Latin America.

Science n. s., Vol. 70 (Aug. 9, 1929), Garrison, N. Y., pp. 56-59, ill., map.

- See Boyd, W. Y. : Airways over Latin America.

Latjtal. See Brenner, Paul : Lautal as a material for airplane construction.

Lavaud, D. S. del Possibilités nouvelles de vol avec un moteur stoppé sur avions bimoteurs.

C. R. Acad. Sei., T. 189, No. 4 (22 juil. 1929), Paris, pp. 144-146, ill.

Lawrence, Charles L. The development of the airplane engine in the United States.

Mech. Eng., Vol. 51, No. 3 (March 1929), New York, pp. 186-192, ill.

- See Wright, Milton : Builders of the aviation industry.

Laws and regulations. Air commerce regulations. Effective December 31, 1926. Effective as amended September 1, 1929.

- Application of the law.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, pp. 9-10. Department of Commerce, Aeronautics branch.

- Aviation law.

Scient. Amer., Vol. 140 (Mar. 1929), New York, pp. 259-260.

- City and country regulation of aircraft.

American City, Vol. 40 (May 1929), New York, p. 110.

- Entry and clearance of aircraft regulations.

Domestic Air News, Serial No. 46, Feb. 15, 1929, Washington, pp. 14-15. Department of Commerce, Aeronautics branch.

-■ Foreign aircraft and the Panama Canal Zone.

Pan American Magazine, Vol. 41 (Mar. 1929), Washington, D. C, pp. 293295.

- Law of the air.

Literary Digest, Vol. 100 (Mar. 23, 1929), New York, pp. 58-59. 9573—30-9

Laws and regulations. Order emerging in flying laws.

Business Week (Nov. 2, 1929), New York, p. 22.

- Recommendations for city and country regulation of aircraft.

American City, Vol. 41 (Nov. 1929), New York, p. 124.

- A talk with regulations division.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, pp. 12-15. Department of Commerce, Aeronautics branch.

- Uniformity favored in aeronautical laws.

United States Daily, Vol. 4, No. 20 (March 26, 1929), Washington, p. 1, 2.

- See Airports : Airport management, July 1, 1929.

- See Airports : Airport rating regulations. Effective as amended January

1, 1929.

- See Airports: Suggested city or county aeronautics ordinance and uniform field rules for airports.

- See Allen, Charles E. : Draft act concerning aeronautics, airman, and air

traffic rules for state of Washington.

- See Commerce regulations: Air commerce regulations. Effective December 31, 1926.

- See Commercial aeronautics: Air commerce regulations. Effective as

amended June 1, 1928.

- See Couannier, André-H. : Eléments créatures du Droit aérien.

- See Danley, Ernest Everett: Law of aerial navigation. Memorandum

prepared for the Attorney General on the law of aerial navigation.

- See Eubank, John A. : Severe damage liability imposed on aircraft.

- See Eubank, John A. : Uniform air laws are imperative.

- See Gay de Montella, Raphael : Las leyes de la aeronautica.

- See Greer, Rowan A. : Aeronautics from a legal point of view.

- See Klemin, Alexander : Learning to use our wings. Aviation law.

- See Logan, George Bryan : Aircraft law-made plain.

- See Lunt, Dudley C. : Laws of the air.

- See Lunt, Dudley C. : Sky law.

- See Mirkil, Hazelton : Aircraft owner liability under the law.

-■ See Mitrovitch, André: L'aviation au point de vue économique et

juridique.

- See National Aeronautic Association: Text of N. A. A. flying club rules,

See Ordinance: Suggested city or county aeronautics ordinance and uniform rules for airports. October 1, 1929.

- See Ordinance: Suggested uniform ordinances and field rules.

— See Parachutes : New parachute regulations planned.

»---See Pilots : New Regulations for airplane pilots increases safety factor.

---See State legislation : Need for uniform state legislation.

- See State legislation: State aeronautical legislation and compilation of

state laws. Revised to September 1, 1929.

Laws and regulations. See Traffic rules : Air traffic rules.

- See United States Department of Commerce. Aeronautics Branch : Airworthiness requirements of air commerce regulations. Effective July 1, 1929.

- Se& United States Department of Commerce. Aeronautics branch: Suggested city or county aeronautics ordinance and uniform field rules for airports. October 1, 1929.

Le Blond. Le Blond Sixty aircraft engine composed of small number of parts.

Automotive Ind., Vol. 60, No. 11 (March 16, 1929), New York, pp. 440442, ill.

- The LeBlond Sixty (Model 5-D).

Aviation, Vol. 26, No. 19 (May 11, 1929), New York, pp. 1610-1613, diagr.

Le Blond Aircraft Engine Corpoeation. Le Blond service manual.

Cincinnai, O. The Le Blond Aircraft Engine Corporation, 1929, Loose leaf No. 8, ills., diagr.

Le Boueget. See Macauley, T. : Grand Central of the air.

LePage, W. Laurence. The N. A. C. A. " at home " at Langley Field.

U. S. Air Services, Vol. 14, No. 6 (June 1929), Washington, D. C, pp. 23-24, 48.

- This year's races and aircraft show.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 34-41, ill.

Le Soet. See Aerotechnique : Une machine a calculer le point.

Le Wita, Henri. Autour de la guerre chimique. Paris, Jules Tallandier.

Lea, F. C. Science and engineering. Aeroplanes and airships.

Nature, Vol. 124, No. 3124 (Sept. 14, 1929), London, pp. 415-418.

League, A. W. 17% days in the air. St. Louis Robin.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 69, 314, 316, ill.

League of Nations. The League of Nations and aerial warfare.

Flight, Vol. 21, No. 18 (May 2, 1929), London, p". 355. .

Lefevre. See M. D. : Quelques précisions sur la traversée de l'Atlantique d'Assolant, Lefèvre et Lotti.

Lega, Vittorio. Le possiblità del volo rasente nell'attacco contro navi da superficie.

Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 68-74.

Legislation. See McGill, K. U. : Aircraft legislation. Seventieth session produced nineteen measures that became law.

- See State legislation : Need for uniform state legislation.

Léglise, Pierre. L'helice métallique Ratier à pas variable en vol.

L'Aéronautique (L'Aérotechnique, 7e année, No. 84), lime année, No. 127 (dec. 1929), Paris, pp. 407-411, ill.

Lehigh Portland Cement Company. Lehigh airports competition.

Scient. Amer., Vol. 141 (July 1929), New York, pp. 71-72.

Domestic Air News, Serial No. 47 (Feb. 28, 1929), Washington, pp. 8-9. Department of Commerce, Aeronautics branch.

Domestic Air News, Serial No. 49, March 31, 1929, Washington, p. 27. Department of Commerce, Aeronautics branch.

Liability. See Eubank, John A.: Severe damage liability imposed on aircraft.

Lehigh Portland Cement Company. The modern airport and Lehigh competition.

Domestic Air News, No. 52, May 15, 1929, Washington, p. 12. Department of Commerce, Aeronautics branch.

- See Klemin, Alexander: Learning to use our wings. * * * The Lehigh airport competition.

Lehl, M. See Caspari, W., und M. Lehl : Bedeutung der Normen für die Luftfahrt.

Lehmann, E. A. Das Luftschiff Graf Zeppelin vom Standpunkt des Erbauers aus betrachtet.

Glassers Annalen, Bd. 104, Nr. 5 (1. März 1929), Berlin, pp. 71-74.

Lehmann, G. D. See Jenkin, C. F., and G. D. Lehmann : High frequency fatigue.

Leigh, R. Aviation and the book business.

Publisher's Weekly, Vol. 116 (Oct. 5, 1929), New York, pp. 1715-1718, ill.

Leighton, Bruce G. Races the test-block for aviation.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 393-394.

Lemberger, Otto. Aplicación del método estereofotogramético terrestre y aereo para le formación de mapas georgráficos.

Ingerieria, Vol. 3, No. 10-12 (Oct.-Dic. 1929), Mexico, pp. 456-465, 492499, 510, 547-554, ill.

Leoning, Grover. An American designer's review of the Schneider race.

Aviation, Vol. 27, No. 13 (Sept. 28, 1929), New York, pp. 650-652, ill.

Lepère, Georges, Abaque pour le calcul de l'empennage horizontal d'un avion.

L'Aéronautique (L'Aérotechnique, 6e anné, No. 73), lime année, No. 116 (jan. 1929), Paris, pp. 11-18, ills., diagrs.

Lesage, A. La XI Exposition Internationale de l'Aéronautique (Paris, 29 juin-15 juil. 1928). Avions et hydravions français—Moteurs d'aviation.

Le Genie Civil, T. 93, Nos. 1-4 (7, 14, 21, 28 juil. 1928), Paris, pp. 1-11, 35-41, 63-69, 87-91.

Lesley, Everett Parker, and Elliott. G. Reid. A new method for the prediction of airplane performance.

National Advisory Committee for Aeronautics, Technical Notes Nos. 302, Feb. 12, 1929, Washington, February 1929, pp. 25, diagrs., tabls.

- Tests of five metal model propellers with various pitch distributions in

a free wind stream and in combination with a model VE-7 fuselage.

National Advisory Committee for Aeronautics, Report No. 326, Nov. 27, 1929 [Washington], pp. 18, illus., diagrs., tabls.

Levy, H. World in the air.

Living Age, Vol. 336 (July 1929), New York, pp. 369-373, ill.

Lewis, C. W. N. A. C. A. cowling experiments interest S. A. E. at Detroit.

Automotive Ind., Vol. 60, No. 16 (April 20, 1929), New York, pp. 627-628.

Lewis, George W. Miscellaneous aircraft performances.

Aeronautic Review, Vol. 7, No. 3 (March 1929), Washington, p. 10.

Lewis, William A. Motor control for wind tunnel. Precision speed regulation for the wind tunnel motor at California Institute of Technology.

Journ. A. I. E. E., Vol. 48, No. 9 (Sept. 1929), New York, pp. 686-691, ill.

Liberty engines. Test of standard water-cooled Liberty-12 engine with various piston rings and arrangements. (Power plant branch report.)

Air Corps Information Circular, Vol. 7, No. 638 (Oct. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 5, ills., tabls. Air Corps Technical Report No. 3006.

Licenses. Aeronautic licensing and inspection service.

Air Commerce Bulletin, Vol. 1, No. 12 (Dec. 16, 1929), Washington, pp. 1-5. Department of Commerce, Aeronautics branch.

- See Aeronautical Chamber of Commerce, inc.: Licensed aircraft.

- See Osborn, Earl D.: The cross license agreement as it stands to-day.

Lichtenstein, Leon. Grundlagen der Hydromechanik. Berlin, Julius Springer, 1929, pp. xvi, 506.

(Die Grundlehren der mathematischen Wissenschaften in Einzeldarstellungen mit besonderer Berücksichtigung der Anwendungsgebiete, herausgegeben von R. Courant, Band 30.)

Liebers, Fritz. See Blenk, Hermann, und Fritz Liebers: Gekoppelte Biegungs-, Torsions-, und Querruderschwingungen von freitragenden und halbfreitragenden Flügeln.

Lienhard, G. See Ventou-Duclaux, L.: Les moteurs ä deux temps; moteurs ä explosion et ä combustion ä essence et ä carburants lourds destines ä l'automobilisme et ä l'aviation.

Lift distribution. Relative lift distribution in any biplane. July 1, 1929.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 14, United States Government Printing Office, Washington, 1929, pp. 21.

Light planes. Interesting light plane.

Scient. Amer., Vol. 140 (May 1929), New York, p. 454, ill.

Lighthouses. See Beacons.

Lighting. Aerodrome and route lighting.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 26 (June 26, 1929), London, p. 1070, ill.

- Aviation lighting.

Air Commerce Bulletin, Vol. 1, No. 10 (Nov. 15, 1929), Washington, p. 6. Department of Commerce, Aeronautics branch.

- Fog-penetrating lights.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, p. 12.

- Street lighting form airway marker. Cheney, Washington, street lights

form arrowhead pointing in direction of Spokane.

Journal American Institute of Electrical Engineers, Vol. 48, No. 7 (July 1929), New York, p. 525.

- See Airports: Aids to better lighting of airports.

- See Airports : Airport lighting.

- See Airports: Notes on airport lighting.

- See Blakeslee, D. W.: Lighting of hangars.

- See Felix, Edgar H.: Lighting the airport and the airway.

- See Fog: Seek fog-penetrating light.

- See Free, El. E.: Lighting them down.

- See Heberlein, Gustave E.: Aircraft control of lighting for emergency

landing fields.

Lighting. See Klemin, Alexander: Learning to use our wings. * * * Certification of private lights.

- See Lippman, H. E.: Airport lighting circuits.

- See Lippman, H. E.: Lighting a typical airport.

- See Luber, Max J.: Die Befeurung von Nachtflugstrecken.

- See Lufer, Max J.: The lighting of routes for night flying.

- See Mahan, H. E.: Lighting of airways and airports.

- See Maps: Air mail routes. Air passenger routes. Lighted airways

- See Mioche: Balises au neon ou a lampes incandescentes.

- See Müller, P.: Betrachtungen über die optische Kennzeichnung der

Nachtflugstrecken.

- See Ogden, H. R.: Flying field and airway lighting.

- See Porter, L. C.: Aviation lighting.

- See Sipp, Edward A.: Influence of landing lights on air speeds.

- See Thompson, H. H.: Airport lighting requirements.

- See Wietz, C. E.: Looking ahead in airport lighting development.

- See Winters, S. R.: Wind-driven generator for beacons.

- See Young, D. C.: Improvements in airport lighting systems will stimulate

commercial flying.

—— See Young, D. C.: Lighting of airway roof signs.

- See Young, D. C.: Relation of paving materials and surface finishes to

the lighting of airport runways.

- See Young, D. C.: Suggestions for airport lighting.

Lightning. See Simpson, G. C.: Lightning.

- See Van Orman, Ward T.: Protecting the balloonist from lightning.

Lincock. The new all-metal " Lincock."

Flight, Vol. 21, No. 44 (Nov. 1, 1929), London, p. 1169, ill.

Lincoln, F. Aviation insurance makes for safety.

World's Work, Vol. 58 (Jan. 1929), Garden City, N. Y., pp. 66-69, ill.

Lincoln, F., and R. C. Rogers. Battling against the heavens.

World's Work, Vol. 58 (Jan. 1929), Garden City, N. Y., pp. 66-69, ill.

Lindbergh, Charles Augustus. The Lone Eagle, Lindbergh.

Chicago, The Blakely Printing co., [1929], pp. [24], ill.

■- See Florain, John W.: Flying courtesy. Who seeks to prove the theory

that there are two sides to every story.

- See Hood, Evelyn: An aviator.

- See McDarment, Corley: Letters of a famous flying class. A story of

great human interest about Lindbergh's friends at Brooks Field.

- See Miller, Francis Trevelyan: Lindbergh; his story in pictures.

- See Reeves, Earl: Lindbergh flies on! A story of a hero, and of the

pioneers, and " empire builders of the air " who followed him.

Lindbergh, H. A. The Todd monoplane.

Aviation, Vol. 26, No. 9 (March 2, 1929), New York, pp. 636-637, ill.

Linkei, F. Die Maximalhöhe eines Ballons.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 11. Heft (14. Juni 1929), München, pp. 276-278, tabls.

Lippisch, A. Der Schleppzug.

Zetischr. Flugt. Motorluftsch., 20. Jahrg., 3. Heft (14. Feb. 1929), München, pp. 71-74 diagrs.

- Technical report on the 1928 Rhön soaring-flight contest.

National Advisory Committee for Aeronautics, Technical Memorandums No. 514, May 23, 1929, Washington, May 1929, pp. 12, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, February 14, 1929.

- Technischer Bericht des Rhön-Segelflug-Wettbewerbs 1928.

Zeitschr. Flugt. Motorluftsch., 20, Jahrg., 3. Heft (14. Feb. 1929), München, pp. 65-70, ill.

Lippman, H. E. Airport lighting circuits.

Airway Age, Vol. 10, Nos. 9-10 (Sept.-Oct. 1929), New York, pp. 1384-1389, 1612-1615, ill.

- Lighting a typical airport.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 65-72, ill.

Lipscomb, Raymond. See Black, Archibald, and Raymond Lipscomb: Air transport advertising.

Lissiuk, K., Philatelic Co. The historical air mail catalogue; an authoritative catalogue of air mail stamps and historical covers.

New York, N. Y., K. Lissiuk Philatelic Co., inc., [1929] ill.

List, Hans. Crank case scavening of two-stroke-cycle engines.

National Advisory Committee for Aeronautics, Technical Memorandums No. 516, June 6, 1929, Washington, June 1920, pp. 14, diagrs.

From Zeitschrift des Vereines deutscher Ingenieure February 16, 1929.

Little, Ray. The passing of pioneer days.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 77, 284, ill.

Livingston, John H. How the 1929 Air Tour was won.

Aviation, Vol. 27, No. 19 (Nov. 9, 1929), New York, pp. 922-925, ill.

Llave y Sierra, Joaquin de La. La vuelta al mundo por el dirigible "Graf Zeppelin."

Ibérica, Ano. 16, Núm. 799 (26 oct. 1929), Barcelona, pp. 248-250, ill.

Load distribution. See Bolas, H., and G. A. Allward: Loads on the main planes and tail of an aeroplane when recovering from a dive.

-■ See Carroll, Thomas: Load factors. A plea for common sense in design.

- See Gates, S. B., and H. B. Howard: On the maximum load in pulling

out from vertical dives.

- See Jones, E. T.: Measurement of landing loads.

- See Koyemann, Alfred: Uber den Einfluss der Profilwiderstandspolare

auf die flugleistungen.

- See Loeser, Oscar E., jr.: Pressure distribution tests on PW-9 wing models

from —18° through 90° angle of attack.

- See Münk, Max Michael: Load factor computation for approved type

certificate.

- See Russell, A. E.: Load factors.

- See Thalau, Karl: Belastungsversuche an Flugzeugen.

- See Vogt, R.: Unsymmetrical forces in an airplane cell.

Lobo, Gustavo. Flying over the Andes on business bent.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 55-57, ill., map.

Lock, C. N. H. Airscrew body interference.

Journ. Roy. Aer. Soc, Vol. 33, No. 224 (Aug. 1929), London, pp. 631-666, ills., diagrs.

- The application of the theoretical velocity field round a spheroid to calculate the performance of an airscrew near the nose of a streamline body.

Aer. Res. Comm., Rep. Mem., No. 1239 (Ae. 394), December 1928, London, 1929, pp. 4, ill., diagr., tabl.

- The effect of body interference on the efficiency of an airscrew.

Aer. Res. Comm., Rep. Mem., No. 1238, (Ae. 393), December 1928, London, 1929, pp. 8, ill., diagr.

Lock, C. N. H., and F. G. Johansen. Pressure plotting a streamline body with tractor airscrew running.

Aer. Res. Comm., Rep. Mem., No. 1230 (Ae. 3854), January 1929, London, 1929, pp. 22, ills., diagrs., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 417-438, ills., diagrs., tabls.

Lock, C. N. H. Photographs of streamers illustrating the flow around an airscrew in the " Vortex Ring State."

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 369-372, ill., diagr. (R. & M. No. 1167).

Lock, C. N. H., and H. C. H. Townsend. Wind-tunnel experiments on a model autogyro at small angles of incidence.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 551-611, ills., diagrs., tabls. (R. & M. No. 1154).

Lock, C. N. H. See Glauert, H., and C. N. H. Lock: Characteristics of an autogyro.

- See Glauert, H., and C. N. H. Lock: A summary of the experimental and

theoretical investigations of the characteristics of an autogyro.

Locke, M. S. The why of steel-built hangars.

Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, pp. 787-790, ill.

Lockheed. See Hall, Norman S.: Lockheed plywood construction.

Loeb, Jesse. First flying club formed. Details also given of terms and conditions of insurance policy.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 14, 38.

—— Flying club progress. Thirty-eight States are represented in the demands for assistance and information.

Aeronautic Review Vol. 7, No. 8 (Aug. 1929), Washington, pp. 17-18, 29, port.

- Private flying clubs.

Aeronautic Review, Vol. 7, No. 9 (Sept.-Nov. 1929), Washington, pp.* 31, 33, 52, 60, port.

Loening, Grover C. See Wright, Milton: Builders of the aviation industry.

Loeser, Oscar E., Jr. Pressure-distribution tests on PW-9 wing models from —18° through 90° angle of attack.

National Advisory Committee for Aeronautics, Report No. 296, Feb. 21, 1929, Washington, Government Printing Office, pp. 21, ill., diagrs.

Loeseb, Oscar B., Jr. See Wenzinger, Carl J., and Oscar Loeser, jr. : Wind-tunnel pressure-distribution tests on an airfoil with trailing edge flap.

Loo an, Floyd J. The 1929 National Air Races. Summary and text of contests and events to be featured at Cleveland.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 27-28, 30, ports.

Logan, George Bryan. Aircraft law—made plain. Saint Louis, 1928, pp. 155.

London. Carnet d'un dessinateur technique au Salon de Londres.

L'Aéronautique, lime année, No. 124 (sept. 1929), Paris, pp. 295-300, ill.

- The future London air port.

Flight, Vol. 21, No. 5 (Jan. 31, 1929), London, p. 82, ill.

- Le salon de Londres.

L'Aéronautique, lime année, No. 123 (août 1929), Paris, pp. 255-258, ill.

- See Giacomelli, Raffaele: L'esposizione internazionale aeronautica di

Londra (16-27 Luglio 1929).

- See Langer, R. : Die Luftfahrt-Wissenschaft auf der Internationelen Luftfahrt-Ausstellung in London (International Aero Exhibition, Olympia).

- See M. L. : L'exposition de Londres.

- See Osborn, Earl D. : An American private pilot looks at the London

Aero Show.

- See Schulz, R. : Flugzeuge auf der Internationalen Luftfahrtausstellung

in London, 1929.'

London-Berlin. London to Berlin nonstop.

Flight, Vol. 21, No. 2 (Jan. 10, 1929), London, pp. 31-32, ill.

Longitudinal control. See Garner, H. M., and K. V. Wright : The longitudinal control of an aeroplane beyond the stall.

Lord, Avery E. See Bullard, J. E., and Avery E. Lord : Making the airport pay for itself.

Lorenz, H. Der Verdrängungswiderstand.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 6. Heft (28. März 1929), München, pp. 141-143, ills.

Lorenzen, C. See Schulz, R. : Die Lorenzen-Abgasturbine. Ein neuartiger Turbinen-Vorverdichter für Höhenmotoren.

Los Angeles, Western aircraft show, Los Angeles.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 84, 259.

- See Burgess, C. P.: Flight tests on U. S. S. "Los Angeles." Part II—

Stress and strength determination.

- See De France, Smith J. : Flight tests on U. S. S. " Los Angeles." Part I—

Full-scale pressure distribution investigation.

- See De France, Smith J., and C. P. Burgess : Speed and decelerated trials

of U. S. S. Los Angeles.

- See McReynolds, Charles F. : The Los Angeles metropolitan airport.

Loth, William. Aviation. Guidage magnétique des aéronefs et aérodromes de sécurité.'

C. R. Acad. Sei., T. 189, No. 16 (14 oct. 1929), Paris, pp. 572-573.

Loth, William. Navigation.—Au sujet du guidage des navires ou aéronefs par ondes dirigées.

C. R. Acad. Sei., T. 189, No. 18 (28 oct. 1929), Paris, pp. 682-684.

Lotti. See M. D. : Quelques précisions sur la traversée de l'Atlantique d'Assolant, Lefèvre et Lotti.

Lotti, Armento, Jr. Firing from Maine to Spain.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 71, 246, ill., map.

Louden, F. A. See Zahm, Albert Francis, and F. A. Louden : Tables for pressure of air on coming to rest from various speeds.

Love, Francis H. With Wasps at the World's crossroads.

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 36-37, 56, port., ills.

Love, Philip R. Fundamentals and certain details of airport design and construction, y

Mech. Eng., Vol. 51, No. 6 (June 1929), New York, pp. 423-429, ill.

Lower, J. H. The hydrodynamical efficiency of flyingboat hulls and seaplane floats.

Aircraft Engineer suppl. Flight, Vol. 21, No. 26 (June 27, 1929), London, pp. 522c-522f.

- The static longitudinal stability of seaplane floats.

Aircraft Engineer suppl. Flight, Vol. 21, No. 5 (Jan. 31, 1929), London, pp. 82a-82c, diagr.

Luber, Max J. Die Befeuerung von Nachtflugstrecken.

Zeitschr. Flugt. Motorluftsch., 20 Jahrg., 10. Heft (28. Mai 1929), München, pp. 246-256, ills, diagrs., tabls.

- See Lufer, Max J. : The lighting of routes for night flying.

Lubrication. Lubrication of aircraft engines.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 22 (May 29, 1929), London, pp. 884-886.

- See Foord, F. A. : The lubrication of aircraft engines.

- See Manley, Gilbert: Some notes on oil purification as applied to aero

engines (under service conditions).

- See Morrison, L. K. : Specifications for motor oils. Labelling proper lubricating oils for various types of motors.

- See Owen, John T. : Jorr process castor oil lubricant.

- See Seyer, W. F., and J. Stanley Allen: Iodine numbers of lubricating

oils before and after use in automobile engines.

- See Staley, F. R. : Some pertinent facts about aviation engine oils.

Lucca, Désiré. See Blanchet, Georges: Aviateurs contemporains. Le commandant Désiré Lucca. Lürenbaum, Karl. Über die messtechnische Untersuchung beschleunigter Bewegungsvorgänge, insbesondere über die direkte Ermittlung von Beschleunigungen mittels eines schwingungsfähigen Systems. (Masse und Feder.)

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 194-202, ills., diagrs.

Löscher. Luftbildmessung im Ausland.

Die Luftwacht, Heft 3, März 1929, Berlin, pp. 109-111, ill.

Lufer, Max J. The lighting of routes for night flying.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 13 (Mar. 27, 1929), London, pp. 486-490, ill. diagr.

- See Luber, Max J. : Die Befeuerung von Nachtflugstrecken.

Luftfahrtforsohung. Luftfahrtforschung. Berichte der Deutschen Versuchsanstalt f. Luftfahrt, Berlin-Adlershof (DVL), der Aerodynamisch. Versuchanstalt zu Göttingen (AVA), des Aerodynamisch. Instituts d. Technischen Hochschule Aachen (AIA) u. anderer Stätten d. Luftfahrtforschung Gesammelt als Beiheft zur Zeitschrift für Flugtechnik und Motorluftachif-fahrt (ZMF) von der Wissensch. Gesellschaft für Luftfahrt (WGL).

München und Berlin, R. Oldenbourg, Band 1, Heft 1-4, 1928, Band 2, Heft 1-5, 1928, Band 3, Heft 1-6, 1929, Band 4, Heft 1-5, 1929, Band 5, Heft 1-2, 1929.

Luftflotten. Luftflotten. Sonderheft der militärwissenschaftlichen und technischen Mitteilungen.

Wien, Herausgegeben und Verlag: Bundesministerium für Heerwesen, 1928, pp. 750.

Luftig, William W. Installment selling of airplanes.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 460-461.

Lugeon, Jean. La genèse des orages de chaleur et leur prevision à l'aide des atmosphérique.

C. R. Acad. Sei., T. 189, No. 9 (29 août 1929), Paris, pp. 363-365, ill.

Lundborg, Einar Paul Albert Muni. The Arctic rescue; how Nobile was saved.

New York, The Viking Press, 1929, pp. 221, ills., maps.

- När Nobile räddades ; mina upplevelser under den Svenska Spetsbergs

expeditionen 1928.

Stockholm, H. Geber, [1928], pp. 224, ills., map.

Lunt, Dudlet C. Laws of the air.

American Mercury, Vol. 17 (June 1929), New York, pp. 198-201.

- Sky law.

Worlds Work, Vol. 58, No. 3 (March 1929), Garden City, N. Y., pp. 40-47, ill.

Luraghi, Giuseppe. Note sull'aviazione commerciale Germanica.

Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 286-295, ill.

Lycoming. The Lycoming aero engine.

The Aeroplane, Vol. 36, No. 6 (Feb. 6, 1929), London, p. 212, ill.

Lyles, Julian. Flying mail and express on four southern air routes.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 104, 106, ill.

Lyman, Lauren D. The aeronautic conference.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, pp. 43, 184-188, ill.

- Safe aircraft competition.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 69-71, ill.

Lynam, E. Notes on the flutter of airscrew blades.

Aer. Res. Comm., Rep. Mem., No. 1258 (Ae. 407, April 1929), London, 1929, pp. 5, ills., diagrs.

M

M. D. Quelques précisions sur la traversée de l'Atlantique d'Assolant, Lefèvre et Lotti.

L'Aérophile, 37e année, Nos. 13-14 (ler-15 juil. 1929), Paris, pp. 205-206, ill.

M. L. Le challenge de tourisme international.

L'Aérophile, 37e année, Nos. 15-16 (ler-15 août 1929), Paris, pp. 227-230, ill.

■- L'exposition de Londres.

L'Aérophile, 37e année, Nos. 15-16 (ler-15 août 1929), Paris, pp. 231-234, ill.

M. L. Les résultats du challenge.

L'Aérophile, 37e année, Nos. 17-18 (ler-15 sept. 1929), Paris, pp. 262-263, ill.

- Le vingtième anniversaire de la traversée de la Manche.

L'Aérophile, 37e année, Nos. 15-16 (ler-15 août 1929), Paris, pp. 235-237, ill.

M., R. J. Les meilleures formes de capotage pour les moteurs radiaux refroidis par l'air.

L'Aéronautique (L'Aérotechnique, 6e année, No. 73), lime année, No. 116 (jan. 1929), Paris, pp. 18-20, ill.

Maas, H. J. van der. The development of aviation and aeronautical research in Holland in recent years.

Journ. Roy. Aer. Soc, Vol. 33, No. 226 (Oct. 1929), London, pp. 965-979, ills., diagrs., tahls.

- Stuurstandslijnen van vliegtuigen ; de bepaling ervan door middel van

vliegproeven en hare beteekenis voor de beoordeeling der stabiliteit.

Verslagen en Verhandelingen van den Ryks-Studiedenst voor de Luchtvaart, Amsterdam, Deel V, 1929. 's Gravenhage Algemeene Landsdrukkerij, 1929, pp. 219, ills., diagrs., tabls.

Maas, Melvin J. Congress will fly. The efforts of an active member of the House are producing results.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 18, 47, port.

McAdie, Alexander. Clouds and fog. Something about which every young aviator should know.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, pp. 17-20, ills.

McAlery, C. M. At Calshot.

The Aeroplane, Vol. 37, No. 11 (Sept. 11, 1929), London, pp. 689-698, ill.

- The Royal Air Force in 1928.

The Aeroplane, Vol. 36, No. 1 (Jan. 2, 1929), London, pp. 8-12.

Macatjley, T. Grand Central of the air.

Living Age, Vol. 335 (Feb. 1929), New York, pp. 424-428, ill. Le Bourget flying field.

McAvoy, William H. Notes on the design of the N. A. C. A. cowling.

Aviation, Vol. 27, No. 12 (Sept. 21, 1929), New York, pp. 636-638, ill.

- See Carroll, Thomas, and William H. McAvoy : The formation of ice upon

airplanes in flight.

- See Carroll, Thomas, and William H. McAvoy: Spiral tendency in blind

flying.

MacBrien, J. H. Canada's aviation league. It is to the Dominion what the N. A. A. is to the U. S. A.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, p. 19, port.

McCann, L. Travel via the skyway.

Country Life, Vol. 56 (Oct. 1929), Garden City, N. Y., pp. 98-102, ill.

McCord, C. G. Preventing and extinguishing aircraft fires.

Aviation, Vol. 27, No. 26 (Dec. 28, 1929), New York, pp. 1265-1267. ill.

MacCracken, William Patterson, Jr. The advance of aeronautics in America.

Domestic Air News, Serial No. 49, March 30, 1929, Washington, pp. 4-6. Department of Commerce, Aeronautics branch.

- Future of aviation.

World's Work, Vol. 58 (Oct. 1929), Garden City, N. Y., pp. 64-68, ill.

- How America protects the flying public.

Air Commerce Bulletin, Vol. 1, No. 4 (Aug. 15, 1929), Washington, pp. 1-5. Department of Commerce, Aeronautics branch.

MacCracken, William Patterson, Jr. Regulations regarding the rating of flying schools. * * * School supplement to the air commerce regulations approved April 17, 1929.

Washington, Ü. S. Government Printing Office, 1929, pp. 7.

- Science in relation to regulating and promoting civil aviation.

Journ. Roy. Aer. Soc, Vol. 33, No. 228 (Dec. 1929), London, pp. 1139-1166, ills., diagrs.

- See Woolley, James G.: Earl W. Hill, Wm. P. MacCraeken, and CarlGustaf Rossby: Airplane transportation.

McDaneld, D. E. N. A. A.'s part in the " Question Mark " flight.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, pp. 11, 14, ills.

McDarment, Corley. Latest sky engine; air-cooled radial motor operating on the Diesel principle.

Pop. Mech., Vol. 52 (Aug. 1929), Chicago, pp. 177-178, ill.

- Letters of a famous flying class. A story of great human interest about

Lindbergh's friends at Brooks Field.

Aeronautic Review, Vol. 7, No. 6 (June 1929), Washington, pp. 20-21, 34, ills.

McGill, K. U. Aircraft legislation. Seventieth session produced nineteen measures that became law.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, pp. 23, 28.

McGraw, James H. Why McGraw-Hill desires to serve the.aviation industry. Aviation, Vol. 26, No. 9 (March 2, 1929), New York, p. 629, port.

McInaney, Justin A. Expanding markets while promoting sales.

Aviation, Vol. 27, No. 7 (Aug. 17, 1929), New York, pp. 331-332, ill.

McKelway, Ben. Harmful publicity? A working newspaperman pleads for all the facts on accidents.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, p. 12.

McKinley, Ashley C. Applied aerial photography. New York, John Wiley & Sons, Inc., 1929.

Macmillan, Norman. The air traveller's guide to Europe. London, Duckworth, 1929, pp. 190, map.

- The Art of flying.

Hartford, Conn., Edwin Valentine Mitchell; London, Duckworth, 1929, pp. 159.

- The art of flying landplanes and seaplanes.

Flight, Vol. 21, No. 44 (Nov. 1, 1929), London, pp. 1174-1175.

- Into the blue.

London, Duckworth, 1929, pp. 231, ill.

McMullen, F. D. First women's air derby; interview with A. Earhart.

Woman's Journal, n. s., Vol. 14 (Oct. 1929), New York, pp. 10-11, ill.

McMullen, Joseph I. Cross-license agreement of Dec. 31, 1928.

Aviation, Vol. 26, No. 10 (March 9, 1929), New York, pp. 728-729. McReynolds, Charles F. Adaptation of the Paulin system to altimeters.

Aviation, Vol. 26, No. 7 (Feb. 16, 1929), New York, pp. 468-470, ill.

- The Federal CM-3. New Hallett powered, three-place, cabin monoplane

has structure built entirely of welded steel tubing.

Aviation, Vol. 26, No. 2 (Jan. 12, 1929), New York, pp. 98-100, ill.

- The Kreutzer air coach. Four passenger, braced monoplane is powered

with three Velie M-5 engines and has a high speed of 110 M. P. H.

Aviation, Vol. 26, No. 5 (Feb. 2, 1929), New York, pp. 319-321, ill.

- The Los Angeles metropolitan airport.

Aviation, Vol. 27, No. 5 (Aug. 3, 1929), New York, pp. 256-260, ill.

McReynolds, Charles F. The Los Angeles races one year after.

Aviation. Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 432-435, ill.

- Lowering manufacturing costs by specializing production.

Aviation, Vol. 27, No. 22 (Nov. 30, 1929), New York, pp. 1075-1077, ill.

- The Prest " Baby Pursuit."

Aviation, Vol. 27, No. 6 (Aug. 10, 1929), New York, pp. 301-303, ill.

- The refueling flight of the " Question Mark."

Aviation, Vol. 26, No. 3 (Jan. 19, 1929), New York, pp. 158-162, ill.

- Wanted * * * a solution of the used-plane problem.

Aviation, Vol. 27, No. 20 (Nov. 16, 1929), New York, pp. 964-966, ill.

- The Western aircraft show.

Aviation, Vol. 27, No. 19 (Nov. 9, 1929), New York, pp. 941-943, ill.

Maddalena, Umberto. I miei voli sulle regioni polari.

Riv. Aeron., Anno 5, N. 3 (Marzo 1929), Roma, pp. 499-532, ills., maps.

Maddux. See Lane, D. R.: Maddux air lines operation.

Madelung, Georg. See Hoff, Wilh., Ottfried v. Dewitz, und Georg Madelung: Jahrbuch 1929 der Deutschen Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof.

Magnan, A., et A. Sainte-Lague. Nouvelles experiences sur la resistance ä l'avancement des poissoris dans l'eau.

C. R. Acad. Sei., T. 189, No. 20 (12 nov. 1929), Paris, pp. 798-799, diagrs.

Magnesium. Magnesium alloys in aeronautics.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1937-1939, ill.

- See Harvey, W. G.: Magnesium and its alloys in aircraft.

Magnetization: See Fagan, T. Z.: No demagnetization. The results of an experiment conducted determine the effect of booster operation on the service magneto.

- See Packer, Alfred Herbert: Demagnetization tests. A discussion of the

N. A. T. experiments to determine the cause of magnetism loss resulting from booster operation.

Magnus effect. See Ahlborn, Fr.: Der Magnuseffekt in theorie und Wirklichkeit.

Mahan, H. E. Lighting of airways and airports.

Journal American Institute of Electrical Engineers, Vol. 48, No. 5 (May 1929), New York, pp. 379-382, ill., map.

Maidens, A. L. See Irving, H. B., A. S. Batson, and A. L. Maidens: Rolling and sideslip experiments on a model slotted biplane of - R. A. F. 31 section.

Mail. Air-mail conferences are held.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1789-1790.

- Air-mail income per mile.

Domestic Air News, Serial No. 49, March 30, 1929, Washington, p. 19. Department of Commerce, Aeronautics branch.

- Air-mail pick-up and release.

Literary Digest, Vol. 100 (Mar. 16, 1929), New York, p. 35.

- Air-mail pick-up and release. The first detailed description of a device

which may become a vital factor in speeding up aerial transportation.

Scient. Amer., Vol. 140, No. 3 (Mar. 1929), New York, pp. 226-227, ill.

- England-India-England. First out and home air mail service completed

in 15y2 days.

Flight, Vol. 21, No. 16 (Apr. 18, 1929), London, pp. 312-313, ill.

Mail. Government printed air-mail envelopes on sale.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, p. 23. Department of Commerce, Aeronautics branch.

- The growth of air mail.

Air Commerce Bulletin, Vol. 1, No. 3 (Aug. 1, 1929), Washington, p. 7, diagr. Department of Commerce, Aeronautics branch.

- The longest air-mail route.

Domestic Air News, Serial No. 45, Jan. 31, 1929, Washington, p. 18. Department of Commerce, Aeronautics branch.

- Map of airway mail lines in the United States and projected lines in

Central and South America.

Pan American Magazine, Vol. 41 (Mar. 1929), Washington, D. C, pp. 290-292.

- More transcontinental air-mail routes considered.

Air Commerce Bulletin, Vol. 1, No. 12 (Dec. 16, 1929), Washington, pp. 20-23. Department of Commerce, Aeronautics branch.

- New U. S.-Mexico air-mail route.

Domestic Air News, Serial No. 47, Feb. 28, 1929, Washington, p. 19. Department of Commerce, Aeronautics branch.

- A statistical picture of the air mail.

Aviation, Vol. 27, No. 21 (Nov. 23, 1929), New York, pp. 1027-1031.

- See Hill, Roderic: The Baghdad air mail.

- See Klemin, Alexander: Learning to use our wings. Future of the air

mail.

- See Maps : Air mail routes. Air passenger routes. Lighted airways.

- See New, Harry S. : Growth of air mail service.

- See Pirozzi, Alfonso: Posta aerea.

Maitland, C. E. See Jones, B. Melvill, and C. E. Maitland : Instrumental records of the lateral motions of a stalled Bristol fighter aeroplane.

Maitland, Lester J. Knights of the air.

Garden City, N. Y., Doubleday, Doran & Company, inc., 1929, pp. xvi, 338, ills., ports.

Foreword by General C. P. Summerall.

Mallinckrodt, Fr. v. Luftverkehr und Nachtflugstreckenbefeuerung.

Ulustruerte Flug-Woche, 11. Jahrg., Heft %, 1929, Berlin-Lichterfelde, pp. 43-46, ill.

Mamer, Nick B. Introducing an advanced phase of endurance flying.

Aero Digest/Vol. 15, No. 4 (Oct. 1929), New York, pp. 53, 280, 282, ill.

Manche. See M. L. : Le vingtième anniversaire de la traversée de la Manche.

Manchester, England. Manchester's municipal aerodrome.

Flight, Vol. 21, No. 17 (Apr. 25, 1929), London, pp. 331-332, ill.

Manisco, Giovanni. I radiogoniometri ed i radiofari nella navigazione italiana. Riv. Aeron., Anno 5, N. 2 (Feb. 1929), Roma, pp. 288-323, ill.

Manley, Gilbert. Some notes on oil purification as applied to aero engines (under service conditions).

Aircraft Engineer suppl. Flight, Vol. 21, No. 39 (Sept. 27, 1929), London, pp. 1056e-1056f, ill.

Manly, Charles Matthews. See Lawrence, Charles L. : The development of the airplane engine in the United States.

Manly, Gardener Burnell. Aviation from the ground up ; a practical instruction and reference work on aviation and allied subjects * * * written in plain understandable English.

Chicago, F. J. Drake & Co. [1929], pp. 373, ills., diagrs.

Manufacture. See Production.

Manzaneque, Luis. La nuova dottrina di guerra.

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 439-440.

Maps. Aerial mapping aids county planning.

American City, Vol. 40 (Mar. 1929), New York, pp. 130-131, ill.

- Air mail routes. Air passenger routes. Lighted airways.

Air Commerce Bulletin, Vol. 1, No. 2 (July 15, 1929), Washington, pp. 5-11, maps, tables. Department of Commerce, Aeronautics branch.

- Airway map of the United States.

Air Commerce Bulletin, Vol. 1, No. 1 (July 1, 1929), Washington, pp. 12-13, map. Department of Commerce, Aeronautics branch.

- Airway maps of the Department of Commerce and the Army Air Corps for

sale from the Coast and Geodetic Survey.

U. S. Coast and Geodetic Survey, Washington (One sheet mimeographed both sides).

- Mapping the great open spaces of " New Trance."

Flight, Vol 21, No. 39 (Sept. 27, 1929), London, pp. 1049-1051, ill.

- Sectional air maps.

Domestic Air News, Serial No. 51, April 30, 1929, Washington, p. 10. Department of Commerce, Aeronautics branch.

- Sectional area air maps to replace " Strip " maps.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, pp. 4-6. ^ Department of Commerce, Aeronautics branch.

- See Burkett, E. F. : Mapping 13,000 square miles of Alaska.

- See Charts : List of air navigation charts. October 15, 1929.

- See Clephane, Douglas W. : Air navigation maps.

- See Grinstead, Frances : Air mapping in Alaska with Loening amphibians.

- See Hammond, C. S., & Co. : Air-line atlas of the world.

- See Lemberger, Otto: Application del método estereofotogramético terrestre y aereo para le formación de mapas geográficos.

■- See Neymet, Augustin de, jr. : Topografía aerea.

- See Sandwell, Arnold H. : Mathematical accuracy in aerial mapping.

- See Surveying : Aerial surveys for the revision of Coast and Geodetic Survey charts.

- See Vincent, F. W. : Map making in the modern manner.

Marazzani, Mario. L'aviazione durante la battaglia di Tannenberg (Agosto 1914).

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 525-534, map.

Marcotte, M. La situation actuelle de l'aéronautique.

Le Genie Civil, T. 93, No. 20 (17 nov. 1928), Paris, p. 488.

Margoulis, W. Les coefficients caractéristiques des turbo-machines et des machines volantes.

Paris, Aéro-Club de France.

Margoulis, W. Détermination expérimentale des tensions dans les charpentes d'avions.

L'Aéronautique (L'Aérotechnique, 7e année, No. 75) lime année, No. 118 (mars 1929), Paris, pp. 81-84, ill.

- A propos de la supersoufflerie de Langley Field.

L'Aéronautique (L'Aérotechnique, 7e année, No. 76), lime année, No. 119 (avril 1929), Paris, pp. 123-126, ill.

- Sur la détermination expérimentale des tensions dans les charpentes des

avions.

C. R. Acad. Sei., T. 188, No. 4 (21 jan. 1929), Paris, pp. 305-307.

Markers. Air markings for highways.

Air Commerce Bulletin, Vol. 1, No. 6 (Sept. 15, 1929), Washington, pp. 6-7, ill. Department of Commerce, Aeronautics branch.

- See Air marking.

- See Grosvenor, Edward Arthur, and Leonard Bridgman : International

aircraft markings ; naval-military and civil.

- See Lighting: Street lighting form airway marker.

- See Renvoisé, J. : Signalisation aux approches des aerodromes.

- See United States Airway Marking Committee: Report of airway mark-

ing committee. January 23, 1929.

- See Zimmer, Ludo L. : The Zimmer code. A marking and identification

system for airways.

Marolles, R.-J. de. How Europe ran an air tour.

Aviation, Vol. 27, No. 25 (Dec. 21, 1929), New York, pp. 1219-1223, ill.

- Le Salon allemand d'aéronautique.

Le Genie Civil, T. 93, No. 24 (15 dec. 1928), Paris, pp. 574-579, ills.

Marseille. See Boiron, Charles: Marseille port aérien.

Marsh. Henry H. The ordnance display. N. A. A. guest at eleventh annual meeting of Army Ordnance Association.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 39-40, ill.

Marshall, C. Camera in the air.

Woman's Journal, n. s., Vol. 14 (Nov. 1929), New York, p. 24, ill.

- Ladies in the air.

Woman's Journal, Vol. 14 (May 1929), New York, pp. 7-9, ill.

Marshall, Fred F. The National air races and aeronautical exposition.

Airway Age, Vol. 10, No. 9 (Sept. 1929), New York, pp. 1413-1418, ill.

- The second all-American aircraft show. Detroit, Apr., 1929.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 468-472.

- Solving the great air mystery. Selling, production, etc.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 178-181, ill.

Martin, George E. Economic airport traffic facilities.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 106, 108, ill.

Martin, Glenn. Glenn Martin, on twentieth anniversary, buys 1,200 acres at Baltimore.

u. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. C, pp. 46-48, ill

- Martin acquires large site. Will build factory and airport at Baltimore.

Aeronautic Review, Vol. 7, No. 4 (Apr. 1929), Washington, p. 21, ill.

9573—30-10

Marttnot-Lagarde C. Au sujet des moteurs à combustibles lourds, pour l'aviation.

L'Aérophile, 37e année, Nos. 9-14, (ler-15 mai-ler-15 juil. 1929), Paris, pp. 145-149, 180-184, 211-213, ill.

- L'état actuel et l'avenir du dirigeable.

Technique Moderne, 21. année, No. 4 (15 fév. 1929), Paris, pp. 97-103, ill.

Martlet. The " Martlet."

Flight, Vol. 21, No. 35 (Aug. 29, 1929), London, pp. 919-920, ill.

Mason, Ethel I. The first International Civil Aeronautics Conference.

u. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, pp. 23-25, ill.

Mass production. See Finney, B. : Mass production methods used in airplane plant.

Massenet, P. See Bruner, S. G., et P. Massenet: Rayon d'action des avions multimoteurs.

Masson, Henry James, and William F. Hamilton. A study of auto-ignition temperatures. III—(a) Mixtures of pure substances, (b) Gasolines.

Ind. Eng. Chem., Vol. 21, No. 6 (June 1929), Washington, D. C, pp. 544-549, ill., diagrs.

Two previous papers published in 1927 and 1928. (Ind. Eng. Chem., Vol. 19, (1927), 1335; Vol. 20, (1928), 813.

Mathar, J. On the strength of box-type fuselages.

National Advisory Committee for Aeronautics, Technical Memorandums No. 511, May 2, 1929, Washington, May 1929, pp. 11, ills.

From the 1928 Yearbook of the Wissenschaftliche Gesellschaft für Luftfahrt.

- Uber die kritische Länge von Flugzeugflügeln.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 6. Heft (28. März 1929), München, pp. 143-145, diagrs.

Mathias, Gotthold. Startformeln für Landflugzeuge. Eine Ergänzung zu der gleichnamigen Abhandlung v. H. Blenk.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 20. Heft (28. Okt. 1929), München, pp. 528-529, diagr.

Mathias, Gotthold, and Adolf Holzapfel. Technical details in the structural development of Rohrbach seaplanes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 541, Nov. 29, 1929, Washington, November 1929, pp. 12, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, July 15, 1929.

- Technische Besonderheiten in der baulichen Entwicklung der Rohrbach-Flugboote.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 13, Heft (15. Juli 1929), München, pp. 334-338, ill.

Matthaes, Kurt. Prüfung der Festigkeitseigenschaften von Alcladblechen.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 305-312, ills., diagrs., tabls.

Matthias, Joachim. Die betriebstechnischen ergebnisse der Deutschen Luft Hansa A. G.

Aeronàutìca, Vol. 3, No. 5 (May 1929), Amsterdam, Holland, pp. 103-104.

- Present position, development and possibilities of aerial traffic in South

America, Central America and Mexico.

Aeronautica, Vol. 5, No. 1-4 (Jan.-April 1929), Amsterdam, Holland, pp. 5-9, 32-34, 59-62, 73-76, ill., map.

—— Das Weltflugwesen im Jahre 1928. I. Luftverkehr.

Die Luftwacht, Heft 1, Jan. 1929, Berlin, pp. 1-25, Ul., map.

Mauboussin. The Mauboussin P. M. 4.

Flight, Vol. 21, No. 7 (Feb. 14, 1929), London, pp. 113-114, ill., diagr.

- Le monoplace léger Mauboussin.

L'Aérophile, 37e année, Nos. 9-10, (ler-15 mai 1929), Paris, p. 151.

Maugeri, Franco. L'attacco a volo rasente contro le navi.

Riv. Aeron., Anno 5, N. 11 (Nov. 1929), Roma, pp. 310-313.

Maurer, H. Eine Fehlerquelle des Sonnenkompass.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 7. Heft (15. März 1929), München, pp. 170-172, ill., map, tabi.

- Funkpeil-Einrichttungen.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 1. Heft (14. Jan. 1929), München, pp. 1-2.

- Der Schiffsort bei drei Funkpeilungen.

Zeitschr. Fiugt. Motorluftsch., 20. Jahrg., 14. u. 15. Heft (31 Juli 1929), München, pp. 381-384, ills., tabi.

Mazet, Horace S. What about the export market?

Airway Age, Vol. 10, No. 7 (July, 1929), New York, pp. 1010-1012, ill.

Mead, George J. The development of fixed radial air-cooled engines.

Journ. Soc. Automotive Engineers, Vol. 25, No. 2 (Aug. 1929), New York, pp. 110-114, ill.

- Historical development of air-cooled engines.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 42-44, 224-228, ill.

- A new Wasp—Series " O."

U. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. C, pp. 64-68, ill.

- The new Wasp series G engine.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 106, 108, ill.

Meadowcroft, N. See Blakemore, T. L., J. F. Boyle, and N. Meadowcroft: Design, construction, and handling of non-rigid airships.

Mealing, R. H. S. Address on the layout and equipment of airports.

Flight, Vol. 21, No. 45 (Nov. 8, 1929), London, pp. 1194-1196.

Means, Howard Huylee. The airport post office.

Aviation, Vol. 27, No. 26 (Dec. 28, 1929), New York, p. 1259, ill.

Mechanical control. See Boykow, H. : Mechanical control of airplanes.

Mecozzi, Amedeo. Le grandi unità aviatorie.

Riv. Aeron., Anno 5, N. 3 (Marzo 1929), Roma, pp. 533-576, ills.

- Squadriglie d'incursione.

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 511-524.

Mecozzi, Maggiore. A proposito de " Le grandi unità aviatorie. * * * Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 279-281.

Medicine. See Charlet, Robert: Ce que fut le premier Congrès International de l'Aviation Sanitaire.

- See Faenzi, Aldo: Il senso muscolare in rapporto all'attitudine al

pilotaggio.

- See Kaiser, Wilhelm : Blutkreislauf-Untersuchungen im Unterdruck.

- See Mennella, Arcangelo: Aviazione sanitaria.

- See Sickness : The problem of air sickness.

- See Strughold, H.: Flugphysiologische Studien.

Mediterranean. See Schiller, Hans von : Die erste Mittelmeerreise des " Graf Zeppelin."

Mehne, Erich. Herausgegeben von. Handbuch für Luftfahrt und Luftfahrtindustrie.

Berlin, Luftfahrt-Verlag, 1929, pp. 360.

Melchior, Paul. Aluminium, die Leichtmetalle und ihre Legierungen. Berlin, V. If. I. Verlag, 1929, pp. 280, ills., diagrs, tables.

Mellon, Andrew W. Treasury Department aircraft customs regulations.

Domestic Air News, Serial No. 46, Feb. 15, 1929, Washington, pp. 16-17. Department of Commerce, Aeronautics branch.

Men dell-Rein hart. Two tough nombres in a second-hand crate: Mendell-Reinhart record.

Literary Digest, Vol. 102 (Aug. 3, 1929), New York, pp. 41-48, ill.

Mennella, Arcangelo. Aviazione sanitaria.

Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 124-134, ill.

Mercier, L. Les grands dirigeables britanniques.

L' Aérophile 37e année, Nos. 11-12 (ler-15 juin 1929), Paris, pp. 163-166, ill.

Meredith, R. L. Pursuit aviation. There's romance, hard work, hazard, and fun in this thrilling branch of military aviation.

Aeronautic Review, Vol. 7, No. 11 (Nov. 1929), Washington, pp. 15-16, 56, ill.

Merkel, Otto. The economic basis of Germany service.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 149-153, ill.

Merrill, Albert. The Penaud versus the Canard types.

Aviation, Vol. 27, No. 7 (Aug. 17, 1929), New York, p. 369.

Messier. Freins Messier pour roues d'avions.

L'Aéronautique, lime année, No. 123 (Août 1929), Paris, pp. 260-261, ill.

- See Suffrin-Hébert, M. : L'amortisseur oleo-pneumatique Messier.

Metal coating. Metal coating by spraying.

Flight, Vol. 21, No. 47 (Nov. 22, 1929), London, pp. 1242-1244, ill.

Metal construction. Metal construction for aeroplanes.

Engineering, Vol. 127, No. 3505 (May 17, 1929), London, pp. 606-607, ill.

- See Handley Page: Handley Page metal construction.

- See Hardecker, John F. : Metals in aircraft construction.

- See Johnstone, R. E. : Metal work in building airplanes.

- See Pollard, H. J. : Development of metal construction.

- See Pollard, H. J.: Metal construction development.

- See Pollard, H. J. : Metalle im Flugzeugbau.

- See Sayers, W. H. : British methods of steel aircraft construction.

Metal planes. See Tiltman, A. H. : Air-cooled engines and metal planes dominate London aero show held for the first time after an interval of ten years.

Metals. Atmospheric corrosion of metals. Third (experimental) report to the Atmospheric Corrosion Research Committee (British non-Ferrous Metals Research Association).

Discussion held by the Faraday Society, May 23, 1929, pp. 177-502.

- The development of metals for aircraft purposes.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 26 (Dec. 25, 1929), London, pp. 1435-1436.

Metals. The inspection of metals.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 22 (Nov. 27, 1929), London, pp. 1244, 1245.

-- A revolution in metallic design.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 22 (Nov. 27, 1929), London, pp. 1248, 1252, diagr.

-- See Gayler, Marie L. V., and G. D. Preston : The age hardening of some

aluminium alloys.

- See Herrick, G. S. : Metals used in airplane making.

- See Hoffmann, W. : Welding rustproof steels.

- See Jenkin, C. F., and G. D. Lehmann : High frequency fatigue.

- See Klemin, Alexander : Learning to use our wings. * * * A successful metal-clad airship.

- See Matthaes, Kurt: Prüfung der Festigkeitseigenschaften von Alclad-

blechen.

- See Melchior, Paul : Aluminium, die Leichtmetalle und ihre Legierungen.

- See Rackwitz, Brich, und Brich K. O. Schmidt : Prüfverfahren zur Beurteilung der Korrosionsbeständigkeit von Metallen gegen Witterung und Seewasser.

-■ See Robertson, Andrew, and A. J. Newport : Report on the drop of stress

at yield in Armco iron.

- See Schroeder, August : Buckling tests of light-metal tubes.

- See Sutton, H. : The use, of light alloys in aircraft from the point of view

of corrosion.

Meteorology. Getting the weather to the Graf.

U. S. Air Services, Vol. 14, No. 10 (Oct. 1929), Washington, D. C, pp. 24-27, ill.

- See Aimé, Emmanuel : Aerologie.

- See Aimé, Emmanuel : L'atmosphère.

- See Arctic: Airships and Arctic meteorology.

- See Bamford, A. J. : Vertical air currents as measured by pilot balloons.

- See Berlin : Höhenwetterdienst. Flugfunkwetter. Die Flugwettermeldungen Europas. Mit Sendezeiten, Wellenlängen, Rufnamen und Kennziffern.

- See Bowie, Edward Hall: Weather and the airplane; a study of the

model weather-reporting service over the California airway.

- See Boykow, J. M. : Meteorologische Navigation.

- See Brooks, Donald B. : Horsepower correction for atmospheric humidity.

- See Bureau, R. : Electricité atmosphérique.—Sur la variation diurne des

parasites atmosphériques; moyennes mensuelles, variation annuelle, influences météorologiques.

- See Byers, Horace R. : Operation of an aviation weather bureau.

- See Carpenter, Ford A. : Weather and air transport.

- See Chatterjee, G. : Balloons for upper air work.

- See Chatterjee, G. : An upper air temperature indicator for us with pilot

balloon.

Meteorology. See Clayton, H. Helm : World weather records. Errata.

- See Dubois, Bernard J. : Vitesses des chutes ascendantes de l'air dans

les canalisations verticales athermanes.

- See Duncan, Richard : Air navigation and meteorology.

- See Enriques, F. : Meteorologia.—Sul calcolo della turbolenza nei bassi

strati atmosferici.

- See Eredia, Filippo : I venti di tramontana alle varie quote sull 'idroscalo

di vigna di valle.

- See Eredia, Filippo : Le indagini sulla copertura delle nubi attraverso le

osservazioni meterologiche ed aerologiche.

- See Eredia, Filippo : Nuovi contributi allo studio delle nubi per la navigazione aerea.

- See Esnault-Pelterie, R. : Une nouvelle formule pour la determination de

la densità atmosphérique en function de l'altitude.

- See Fassig, Oliver L. : On the frequency of hurricanes in the vicinity of

Porto Rico.

- See Grant, Hugh Duncan : International meteorology.

- See Gregg, Willis Ray: Flying weather. What the Weather Bureau is

doing and wants to do for aeronautics.

- See Humphreys, William Jackson: Aircraft and the thunderstorm.

- See Kölzer, Joseph : Neue Methoden zur Erzielung von Windmessungen in

grossen höhen bei Nacht.

- See Koppe, Heinrich : Von den Gefahren des Luftmeeres.

- See Lugeon, Jean: La genese des orages de chaleur et leur prevision à

l'aide des atmosphérique.

- See McAdie, Alexander: Clouds and fog. Something about which every

young aviator should know.

- See Peppier, W. : Die Windverhältnisse der freien Atmosphäre, besonders

der Stratosphäre über mittleren Breiten Europas.

- See Rolles, B. H., and H. L. Stevens : The effect of the wind, weight, and

atmospheric conditions (including semitropical conditions) on the distance to take-off and land an aircraft.

- See Seilkopf, Heinrich : Beiträge zur Kenntnis der atmosphärischen

Grenzschicht.

- See Selga, Miguel : Investigation of the upper air by means of airplanes.

- See Simpson, G. C. : Lightning.

- See Süring, R. : Arthur Berson als Meteorologe.

- See Thoret: L'étude des courants aeriens et les vols au-dessus des

montagnes.

- See Weather : Civil weather service to airways.

- See Weather : Radio weather report for aviators.

- See Wherle, Wh., et A. Viaut : Memorial de l'Office National Météorol-

ogique de France. Les traversées et tentatives de traversées aériennes de l'Atlantique Nord en 1927, au point de vue météorologique.

Meteorology. See Yancey, Lewis Alonozo : Aerial navigation and meteorology ; a comprehensive treatise in simple language for the student with an average education.

Meitzer, W., A. B. Miller, und Stefan v. Fakla. Die mittragende Breite. Von W. Metzer.—Über die mittragende Breite. Von A. B. Miller.—Bie-gungs—und Torsionssteifigkeit des freitragenden Flügels. Von Stefan v. Fâkla.

Luftfahrtforschung, Berichte, Band 4, Heft 1. München und Berlin. R. Oldenbourg, 1929, pp. 40, ill.

Mexico. See Bonnick, Sydney : With an aerial camera in Mexico.

- See Mail : New U. S.-Mexico air mail route.

Meyer, J. H. Selection of storage equipment for aircraft factories.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, p. 82, ill.

Meyer, Konrad. Die Deutsche Versuchsanstalt für Luftfahrt auf der " Ha Berlin 1928,"

Jahrb. Deutsch. Versuchsanstalt für Luftfahrt, München [1929], pp. 1-8, ill.

Meyer, Willi. Von Wright bis Junkers. Das erste Vier tel jähr hundert Menschenflug.

Berlin, Deutsche Verlagsgesellschaft für Politik und Geschichte, 1929, pp. 52, ill.

MiCARTA. See Knight, R. L. : Making Micarta airplane propellers.

- See Propellers : How Micarta propellers are made.

Michael, F. Versuche mit einer neuen Spornform fuer Flugzeuge.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 13. Heft (15. Juli 1929), München, pp. 329-334, ill.

MiGiURTTNiA. II volo sulla Migiurtinia.

Riv. Aeron., Anno 5, N. 1 (Gen. 1929), Roma, pp. 5-15, ill. Milan. Aircraft at the Milan exhibition.

Flight, Vol. 21, No. 20 (May 16, 1929), London, pp. 401-402, ill.

Milarch. Umrissfunktionen für Luftschiffkörper, welche den Faktor (l-x)e enthalten.

Zeitsch. Flugt. Motorluftsch., 20. Jahrg., 16. Heft (28. Aug. 1929), München, pp. 409-411, ill.

- Zwei tangential zusammengesetzte Teilumrisse für einen Luftschiffkörper.

Zeitsch. Flugt. Motorluftsch., 20. Jahrg., 16. Heft (28. Aug. 1929), München, pp. 411-413, ill.

Military aeronautics. Army airplane designations.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 76-79, 280, ill.

- Strafing New York from the clouds.

Literary Digest, Vol. 101 (June 8, 1929), New York, pp. 60-66, ill.

- Why the ace threatens to fade from aviation.

Literary Digest, Vol. 102 (Aug. 10, 1929), New York, pp. 50-51.

- See Armengaud: Quelques enseignements des campagnes du Riff en

matière d'aviation.

- See Ashmore, Edward Bailey: Air defence.

- See Gillmore, William E. : Industrial war plans. Why the Army Air

Corps seeks the aid of the industry for National Defence.

- See Italy: Cronistoria della aeronautica militare Italiana.

- See Manzaneque, Luis : La nuova dottrina di guerra.

Military aeronautics. See Meredith, R. L.: Pursuit aviation. There's romance, hard work, hazard, and fun in this thrilling branch of military aviation.

- See Mecozzi, Amedeo: Le grandi unita aviatorie.

- See Stuart-Wortley, Rothesay: Letters from a flying officer.

- See Targa, Spartaco: Discussioni utili?

- See United States Navy Department: Aircraft purchased by the Navy

Department. Letter from the Secretary of the Navy transmitting, pursuant to law, a report of designs, aircraft, aircraft parts, and aeronautical accessories purchased by the Navy Department during the fiscal year ended June 30, 1927.

- See United States Navy Department: Fatalities in the aviation service

of the Navy and Marine corps. Letter from the Secretary of the Navy transmitting in response to Senate resolution No. 296 (Seventieth Congress) a list of fatalities in the aviation service of the Navy and Marine corps during the past five years.

- See United States War Department: Fatalities in the aviation service

of the army. Letter from the Secretary of War transmitting, in response to Senate resolution No. 296, a list of the fatalities in the aviation service of the army during the past five years.

- See Verduzio, Rodolfo: L'aviazione durante e dopo la guerra mondiale.

- See Warlick, William Walter: Naval aviation; a textbook for the

instruction of midshipmen in the Department of Seamanship, U. S. Naval Academy. . .

Millar, Bradford P. The relation of color to visibility as applied to aircraft. Aero Digest Vol. 15, No. 5 (Nov. 1929), New York, pp. 60, 266, 268.

Miller, A. B. Uber die mittragende Breite.

Luftfahrtforschung, Berichte, Band 4, Heft 1. München und Berlin, R. Oldenbourg, 1929, pp. 40, ill.

Miller, Francis Trevelyan. Lindbergh; his story in pictures.

New York, London, G. P. Putnam's Sons, 1929, pp. 320, ills., maps.

Miller, H. B. Parachutes!

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 57-59, 264-268, ill. Review of Reviews, Vol. 80 (Nov. 1929), New York, pp. 99-100, ill.

- That fatal tailspin.

Scient. Amer., Vol. 141 (Oct. 1929), New York, pp. 306-309, ill., diagr.

Miller, Harlan S. Speeding the news by airplane.

Airway Age, Vol. 10, No. 2 (Feh. 1929), New York, pp. 196-200, ill.

Miller, J. E. Flying the air liners.

Pop. Mech., Vol. 52 (Sept.-Oct. 1929), Chicago, pp. 360-365, 586-590, ill.

- 14,000 hours in the air.

Pop. Mech., Vol. 51 (Apr. 1929), Chicago, pp. 610-615, ill.

Miller, William H. Research and the airplane.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, pp. 50, 52, 174-176. ill., diagr.

Millikan, Clark B. The induced drag viewpoint of performance.

Aviation, Vol. 27, No. 7 (Aug. 17, 1929), New York, pp. 364-368.

Mingos, H. Five years more of flying.

Sat. Even. Post, Vol. 201 (June 29, July 6, 1929), Philadelphia, pp. 14-15; 20-21, ill.

- Gold rush in the air.

Sat. Even. Post, Vol. 201 (Jan. 26, 1929), Philadelphia, pp. 8-9, ill.

Mioche. Balises au néon ou à lampes incandescentes.

L'Aéronautique, lime année, No. 125 (oct. 1929), Paris, pp. 347-349, ill.

Mirkil, Hazelton. Aircraft owner liability under the law.

Aviation, Vol. 27, No. 26 (Dec. 28, 1929), New York, pp. 1260-1261.

Mitchell, R. J. Racing seaplanes and their influence on design.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 37, No. 26 (Dec. 25, 1929), London, pp. 1429-1430, ill.

Mitrovitch, André. L'aviation au point de vue économique et juridique.

Belgrade, Imprimerie Drag. Gregoritch (Approved for publication May 22, 1929), pp. 127, ill. . Thèse présentée à la Faculté de Droit de l'Université de Neuchâtel.

Mittelholzer, Walter. Les ailes et les alpes.

Neuchâtel, éditions de la Baconnière, 1929, pp. 108 e moite ill. a colori.

- Alpenflug.

Bern, S. A. C, p. 155, ill.

Mix, Arthur. My 82,000 miles with Lincoln Beachey.

U. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, pp. 62, 63, ill.

Models. Model aircraft.

Scient. Amer., Vol. 140 (Jan. 1929), New York, pp. 70, ill.

- Props and wheels for model planes.

Pop. Mech., Vol. 52 (Aug. 1929), Chicago, pp. 311-313, ill., diagrs.

- Third flying tournament for young plane builders.

Playground, Vol. 23 (June 1929), New York, p. 155.

- See Collins, Francis Arnold : The boy's book of model aeroplanes.

- See Day, Omar H., and Terence Vincent : Miniature aircraft ; how to

make and how to fly them ; a manual for use in the club, school, or home.

- See Hall, Albert Neely: Building miniature airship models, a comprehensive, thoroughly illustrated work manual on the construction and flying of miniature aircraft, with a final chapter on model boat building.

- See Newhauser, R. B. : Model airplane.

- See Pond, B. P. : Hydroplane model that flew over twelve minutes.

- See Ross, D. A. : Simple model pusher plane for beginners.

- See Sibley, H : One-man winder for model planes.

- See Smith, E. L. : Flying model monoplane.

Moffett, William A. Admiral Moffett and a third term.

Aeronautic Review, Vol. 7, No. 2 (Feb. 1929), Washington, pp. 4-5, port.

- All honor to the Germans ! They lead the world in lighter-than-air ; is

America boasting instead of doing?

Aeronautic Review, Vol. 7, No. 11 (Nov. 1920), Washington, pp. 13, 45, port.

- Certain aspects of Naval aeronautics.

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, pp. 42-45, ill.

Mors, J. R. Ancient history from aloft; archeological discovery, Caistor, England, by aerial photography.

Scient. Amer., Vol. 141 (Sept. 1929), New York, pp. 242-243, ill., diagr.

Monica, Francesco Della. Impressioni di un medico sul comportamento di alcuni organi nei voli di acrobazia.

Riv. Aeron, Anno 5, N. 7 (Luglio 1929), Roma, pp. 153-162.

Monoplanes. Single-spar monoplanes.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 22 (May 29, 1929), London, pp. 883-884, diagr.

- See Farren, W. S. : Monoplane or biplane?

Mono-spar wing. The Mono-spar wing.

The Aeroplane, Vol. 36, No. 25 (June 19, 1929), London, pp. 1020-1021, ill.

Mont Blano. See Lallier, Roger : Avec Thoret autour du Mont Blanc.

Montagnes, James. Canadian aviation progress.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 54-55, ill. "

- Charting Canada's wilderness from the air.

Scient. Amer., Vol. 141 (Sept. 1929), New York, pp. 214-215, ill., maps.

- Eyes from the air ; Canada's outstanding place in air surveys.

Canada Magazine, Vol. 71 (Feb. 1929), Toronto, pp. 10-11, ill., maps.

- Firemen of the air.

Canada Magazine, Vol. 72 (Oct. 1929), Toronto, pp. 12-13, ill.

- The modern prospector flies.

Airway Age, Vol. 10, No. 9 (Sept. 1929), New York, pp. 1410-1412, ill.

Monteith, Charles Norton. Aircraft for passenger transport.

Mech. Eng., Vol. 51, No. 8 (Aug. 1929), New York, pp. 581-584.

- Simple aerodynamics and the airplane, with supplementary chapters on

materials and construction, equipment, navigation, and the military airplane, by Captain E. E. Aldrin and technical specialists of the air corps, U. S. Army.

New York, The Ronald Press Company, [19291, PP. xiii, 418, ills., diagrs. Third revised edition by C. C. Carter.

Montella, Raphael Gay de. See Gay de Montella Rafael: Las leyes de la aeronautica.

Moore, S. T. Upstairs and down ; observation balloon service of U. S. army. Collier's, Vol. 83 (June 15, 1929), New York, pp. 32-36, ill.

Mooring. Le mechanisme de la tour d'amarrage pour dirigeables de Montreal (Canada).

Genie, Civil, T. 94, No. 15 (13 avril 1929), Paris, pp. 360-362, ill.

- Mobile mooring for airships.

Scient. Amer., Vol. 141 (Oct. 1929), New York, pp. 338-340, ill.

- The mooring of airships.

The Aeroplane, Vol. 36, No. 16 (Apr. 17, 1929), London, p. 614.

- See Rosendahl, C. E. : Mooring masts and landing trucks for airships.

Morane-Saulnier. Morane-Saulnier 180 light airplane (French). A single-seat training monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 93, . March 28, 1929, Washington, March 1929, pp. 5, ills.

- See Frachet, André: The Morane Saulnier 222 airplane (French). A

single-seat pursuit monoplane.

Moray, Norman R. Insurance and aviation.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 82, 214.

Morel. Le compas Morel pour avions.

Le Genie Civil, T. 93, No. 13 (29 sept. 1928), Paris, pp. 306-307, ills.

Morelli, Ercole. La Mostra aeronautica all'Esposizione di Storia della Scienza a Firenze-Maggio 1929.

Riv. Aeron., Anno 5, N. 7 (Luglio 1929), Roma, pp. 146-152.

Morgan, Thomas A. Thomas A. Morgan becomes President of Sperry.

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, p. 68, ill.

Morgan, Thomas E. "Making airlines pay their way.

Aviation, Vol. 27, No. 24 (Dec. 14, 1929), New York, pp. 1165-1167, ill.

Morocco. To Morocco by Moth.

The Aeroplane, Vol. 36, No. 16 (Apr. 17, 1929), London, pp. 615-616, ill.

Morris. A Morris aero engine.

The Aeroplane, Vol. 37, No. 19 (Nov. 6, 1929), London, p. 1123.

Morris, Charles L. The crisis in college flying? The Intercollegiate Aeronautic Association is in close attendance on a very important case.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 33-34, ill.

Morris, J. The effect of the damping of the throws on the torsional vibration of the crank-shaft system of an internal-combustion engine.

Journ. Roy. Aer. Soc, Vol. 33, No. 227 (Nov. 1929), London, pp. 1086-1087, ills.

- The strength of shafts in vibration.

London, Crosby Lockwood & Son, 1929, pp. 190.

Morrison, L. K. Aircraft motor insurance. Containing a plea for study of viscosities as met under operating conditions.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, pp. 25, 32, port.

- Specifications for motor oils. Labeling proper lubricating oils for various

types of motors.

Aeronautic Review, Vol. 7, No. 3 (March 1929), Washington, p. 15.

Moscow. See Pogossky, J. : L'avion trimoteur métallique A. N. T.-9 de l'Institut Central Aérohydrodynamique de Moscou.

Mossner, K. J. Der neue Flughafen München-Oberwiesenfeld.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 19. Heft (14. Okt. 1929), München, pp. 493-514, ill.

Müller, Horst. The balance of moments and the static longitudinal stability of airplanes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 545, Dec. 26, 1929, Washington, December 1929, pp. 12, diagrs.

From Zeitschrift für Flugtechnik und Motorluftschuffahrt, January 28, 1929.

- Beitrag zum Momentenausgleich und zur statischen Längsstabilität der

Flugzeuge.

Zeitschr., Flug. Motorluftsch., 20 Jahrg., 2. Heft (28. Jan. 1929), München, pp. 45-50, ills., diagrs., tabl.

--Flügelschnitt und Flugleistungen.

Luftfahrtforschung, Berichte, Band 5, Heft 1. München und Berlin, R. Oldenbourg, 1929, pp. 28, ill.

(Mitt. d. Flugt. Inst. d. T. H. Hannover).

Müller, P. Betrachtungen über die optische Kennzeichnung der Nachtflugstrecken.

Illustrierte Flug-Woche, 11. Jahrg., Heft 2/3, 1929, Berlin-Lichterfelde, pp. 48-50, ill., diagrs.

Mtjllett, M. B. From the ground up; interview with H. C. Ferguson.

American Magazine, Vol. 107 (Mar. 1929), Springfield, Ohio, pp. 36-38, ill.

Munich. See Mossner, K. J.: Der neue Flughafen München-Oberwiesenfeld.

Münk, Max Michael. Fundamentals of fluid dynamics for aircraft designers. New York, The Ronald Press Company, [1929], pp. xii, 198, diagrs.

- Load factor computation for approved-type certificate.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 72, 301, chart.

- The production of lift by propeller blades.

Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, pp. 816-819.

Murnaghan, F. D. Modern hydrodynamical theory with special reference to aeronautics.

Bulletin of the American Mathematical Society, Vol. 35, No. 3 (May-June 1929), Menasha, Wis., pp. 294-318, ill.

Murphy, Charles J. V. The flight of Williams and Yancey.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 62-64, 312, 314, ill.

- Lunatics of the air; moral aspects of aviation.

Outlook, Vol. 153 (Oct. 16, 1929), New York, pp. 248-250, ill.

- Struggle; the life and exploits of Commander Richard E. Byrd.

New York, Frederick A. Stokes Company, 1928, pp. xii, 368, ill.

- Wings over America.

Outlook, Vol. 152 (May 22, 1929), New York, pp. 123-126, ill.

Murphy, J. V. Shirt flapping in the breeze became an airplane in the sky; interview with I. Sikorsky.

American Magazine, Vol. 107, (May 1929), Springfield, Ohio, pp. 28-29, ill. Review of Reviews, Vol. 79 (June 1929), New York, pp. 124-126.

Muscular sensation. See Faenzi, Aldo: II senso muscolare in rapporto all'attitudine al pilotaggio.

Musselman, A. J. Airwheels for airplanes.

Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, pp. 792-794, ill.

Mussolini. See Italy: Le vie del cielo. Raccolta di scritti aeronautici [a cura di] Aldo Barbaro, Mussolini, D'Annunzio, Italo Balbo [ecc].

Muttray, H. Investigation of the effect of the fuselage on the wing of a low-wing monoplane.

National Advisory Committee for Aeronautics, Technical Memorandums No. 517, June 13, 1929, Washington, June 1929, pp. 16, ills. From Luftfahrtforschung, June 11, 1928.

'- Neuere Messungen an Flügeln mit Ausschnitten.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 7. Heft (15 April 1929), München, pp. 161-169, ills, diagrs.

Myers, Franklin D. Aviation insurance in the United States.

Aviation, Vol. 26, No. 6 (Feb. 9, 1929), New York, pp. 400-404, ill.

N

Nacelle. See Jacobs, Eastman N.: The drag and interference of a nacelle in the presence of a wing.

Naep, Ernest. L'aviation commerciale et sportive Suisse en 1929. Le salon des ailes de Geneve.

Aeronautica, Vol. 3, No. 5 (May 1929), Amsterdam, Holland, pp. 94-100, ill.

Nagai, yüzaburö. See Tanaka, Yoshio, and Yüzaburö Nagai: Studies on inflammability of hydrogen.

Nagel, Felix. Flügelschwingungen im stationären Luftstrom. Luftfahrtforschung, Berichte, Band 3, Heft 5. München und Berlin, R. Oldenbourg, 1929, pp. 26, ill.

National Advisory Committee fob Aeronautics. Aerodynamic characteristics of airfoils—VI.

National Advisory Committee for Aeronautics, Report No. 315, June 26, 1929, Washington, Government Printing Office, 1929, pp. 381-418, diagrs.

- Aeronautics. Fourteenth annual report of the National Advisory

Committee for Aeronautics, 1928.

Washington, United States Government Printing Office, 1929, pp, 574, ills., diagrs., tabls.

Technical Reports. No. 283. A preliminary investigation of supercharging an air-cooled engine in flight, by Marsden Ware and Oscar W. Schey, pp. 81-91. No. 284. The comparative performance of Roots type aircraft engine superchargers as affected by change in impeller speed and displacement, by Marsden Ware and Ernest E. Wilson, pp. 93-106. No. 285. A study of wing flutter (in three parts), by A. F. Zahm and R. M. Bear, pp. 107-134. No. 286. Aerodynamic characteristics of airfoils—V. Continuation of reports Nos. 93, 124, 182, and 244, by National Advisory Committee for Aeronautics, pp. 135-183. No. 287. Theories of flow similitude, by A. F. Zahm, pp. 185-194. No. 288. Pressure distribution over a rectangular monoplane wing model up to 90° angle of attack, by Montgomery Knight and Oscar Loeser, jr., pp. 195-213. No. 289. Forces on elliptic cylinders in uniform air stream, by A. F. Zahm, R. H. Smith, and F. A. Louden, pp. 215-232, No. 290. Water-pressure distribution on a seaplane float, by F. L. Thompson, pp. 233-247. No. 291. Drag of C-Class airship hulls of various fineness ratios, by A. F. Zahm, R. H. Smith, and F. A. Louden, pp. 249-264. No. 292. Characteristics of five propellers in flight, by J. W. Crowley, jr., and R. E. Mixson, pp. 265-287. No. 293. Two practical methods for the calculation of the horizontal tail area necessary for a statically stable airplane, by Walter S. Diehl, pp. 289L-308. No. 294. The measurement of maximum cylinder pressures, by Chester W. Hicks, pp. 309L-319. No. 295. The variation in engine power with altitude determined from measurements in flight with a hub dynamometer, by W. D. Gove, pp. 321-332. No. 296. Pressure distribution tests on PW-9 wing models from —18° through 90° angle of attack, by Oscar E. Loeser, jr., pp. 333-354. No. 297. The reduction of observed airplane performance to standard conditions, by Walter S. Diehl, pp. 355-381. No. 298. Effect of variation of chord and span of ailerons on rolling and yawing moments in level flight, by R. H. Heald and D. H. Strother, pp. 383-401. No. 299. Investigation of damping liquids for aircraft instruments, by G. H. Keulegan, pp. 403^426. No. 300. The twenty-foot propeller research tunnel of the National Advisory Committee for Aeronautics, by Fred E. Weick and Donald H. Wood, pp. 427-442. No. 301. Full scale tests of wood propellers on a VE-7 airplane in the propeller research tunnel, by Fred E. Weick, pp. 443-462. No. 302. Full scale tests on a thin metal propeller at various tip speeds, by Fred E. Weick, pp. 463476. No. 303. An investigation of the use of discharge valves and an intake control for improving the performance of N. A. C. A. Roots type supercharger, by Oscar W. Schey and Ernest E. Wilson, pp. 477-485. No. 304. An investigation of the aerodynamic characteristics of an airplane equipped with several different sets of wings, by J. W. Crowley, jr., and M. W. Green, pp. 487-500. No. 305. The gaseous explosive reaction—a study of the kinetics of composite fuels, by F. W. Stevens, pp. 501-518. No. 306.

Full-scale wind-tunnel tests of a series of metal propellers on a VE-7 airplane, by Fred E. Weick, pp. 519-536. No. 307. The pressure distribution over the horizontal and vertical tail surfaces of the F6C-4 pursuit airplane in violent maneuvers, by R. V. Rhode, pp. 537-556. No. 308. Aircraft accidents. Method of analysis. Report prepared by Special Committee on the Nomenclature, Subdivision, and Classification of Aircraft Accidents, pp. 557-574.

National Advisory Committee for Aeronautics. Aeronautics. Fifteenth annual report of the National Advisory Committee for Aeronautics 1929. Administrative report without technical reports.

Washington, United States Government Printing Office, 1929, pp. 89.

- Aircraft Circulars No. 88. Farman two-engine commercial biplane F.

180 (French).

National Advisory Committee for Aeronautics, Jan. 21, 1929 (mimeographed), Washington, January 1929, pp. 6, ills.

- Aircraft Circulars No. 89. Albessard " Triavion " airplane (French). A

two-seat tandem monoplane, by J. Serryer.

National Advisory Committee for Aeronautics, Jan. 31, 1929 (mimeographed), Washington, January 1929, pp. 5, ills.

- Aircraft Circulars No. 90. The Boulton and Paul "Partridge " (British).

All-metal single-seat fighter.

National Advisory Committee for Aeronautics, Feb. 15, 1929 (mimeographed), Washington, February 1929, pp. 8, ills.

- Aircraft Circulars No. 91. The De Haviland D. H. 75 "Hawk Moth"

(British). Cabin monoplane.

National Advisory Committee for Aeronautics, March 12, 1929 (mimeographed), Washington, March 1929, pp. 6, ills.

- Aircraft Circulars No. 92. Nieuport-Delage 640 (French). Commercial

high-wing monoplane.

National Advisory Committee for Aeronautics, March 18, 1929 (mimeographed), Washington, March 1929, pp. 7, ills.

- Aircraft Circulars No. 93. Morane-Saulnier 180 light airplane (French).

A single-seat training monoplane.

National Advisory Committee for Aeronautics, March 28, 1929 (mimeographed), Washington, March 1929, pp. 5, ills.

- Aircraft Circulars No. 94. The Blackburn " Bluebird " Mark IV (British).

All-metal biplane.

National Advisory Committee for Aeronautics, April 19, 1929 (mimeographed), Washington, April 1929, pp. 8, ills.

- Aircraft Circulars No. 95. The Westland IV commercial monoplane

(British). Three "Cirrus III" engines.

National Advisory Committee for Aeronautics, April 26, 1929 (mimeographed), Washington, April 1929, pp. 8, ills.

- Aircraft Circulars No. 96. The "Potez 33" military airplane (French).

National Advisory Committee for Aeronautics, June 29, 1929 (mimeographed), Washington, June 1929, pp. 4, ills.

- Aircraft Circulars No. 97. The Amiot S. E. C. M. 110 C. 1. A single-seat

pursuit monoplane.

National Advisory Committee for Aeronautics, June 19, 1929 (mimeographed), Washington, July 1929, pp. 5, ills.

—— Aircraft Circulars No. 98. The Bernard 20 C. 1 (French). A single-seat pursuit monoplane.

National Advisory Committee for Aeronautics, July 31, 1929 (mimeographed), Washington, July 1929, pp. 4, ills.

National Advisory Committee for Aeronautics. Aircraft Circulars No. 99. The Parnall "Pitpit" (British). A single-seat ship's fighter.

National Advisory Committee for Aeronautics, Aug. 9, 1929 (mimeographed), Washington, August 1929, pp. 4, ills.

- Aircraft Circulars No. 100. The " K 47 " of the A. B. Flygindustri. An

armored pursuit monoplane.

National Advisory Committee for Aeronautics, Sept. 6, 1929 (mimeographed), Washington, August 1929, pp. 12, ills.

- Aircraft Circulars No. 101. The A. B. C. "Robin" (British). A single-seat cabin monoplane.

National Advisory Committee for Aeronautics, Sept. 20, 1929 (mimeographed), Washington, September 1929, pp. 7, ills.

- Aircraft Circulars No. 102. The Fairey III. F (British). A general-purpose biplane.

National Advisory Committee for Aeronautics, Sept. 30, 1929 (mimeographed), Washington, September 1929, pp. 9, ills.

- Aircraft Circulars No. 103. The Bristol "Bulldog" (British). A single-seat all-steel fighter.

National Advisory Committee for Aeronautics, Oct. 11, 1929 (mimeographed), Washington, October 1929, pp. 15, ills.

- Aircraft Circulars No. 104. The A. B. Flygindustri "K 37" (Swedish

Junkers). A low-wing all-metal military airplane.

National Advisory Committee for Aeronautics, Oct. 28, 1929 (mimeographed), Washington, October 1929, pp. 8, ills.

- Aircraft Circulars No. 105. The Saunders " Cutty Sark " commercial

seaplane (British). A high-wing monoplane flying boat.

National Advisory Committee for Aeronautics, Nov. 12, 1929 (mimeographed), Washington, November 1929, pp. 7, ills.

- Aircraft Circulars No. 106. The Morane Saulnier 222 airplane (French).

A single-seat pursuit monoplane, by André Frachet.

National Advisory Committee for Aeronautics, Dec. 31, 1929 (mimeographed), Washington, December 1929, pp. 4, ills. Prom Les Ailes, June 6, 1929.

- Au grand tunnel du Langley Field.

L'Aéronautique (L'Aérotechnique, 7e année, Nos. 77 et 78), lime année, No. 121, ill.

- Kiihlwirkung und Widerstand verschiedener Formen der Verschalung

eines " Whirlwind "-Sternmotors.

Die Luftwacht, Heft 3, Mârz 1929, Berlin, pp. 125-130, ill.

- Report No. 296. Pressure distribution tests on PW-9 wing models from

—18° through 90° angle of attack, by Oscar E. Loeser, jr.

National Advisory Committee for Aeronautics, Feb. 21, 1929, Washington, United States Government Printing Office, 1929, pp. 21, ill., diagrs.

- Report No. 298. Effect of variation of chord and span of ailerons on

rolling and yawing moments in level flight, by R. H. Heald and D. H. Strother.

National Advisory Committee for Aeronautics, Mar. 3, 1929, Washington, United States Government Printing Office, 1929, pp. 19, ill., diagrs., tabls.

- Report No. 299. Investigation of damping liquids for aircraft instruments, by G. H. Keulegan.

National Advisory Committee for Aeronautics, April 5, 1929, Washington, United States Government Printing Office, 1929 pp. 24, ills., diagrs., tabls.

National Advisory Committee for Aeronautics. Report No. 301. Full scale tests of wood propellers on a VE-7 airplane in the propeller research tunnel, by Fred E. Weick.

National Advisory Committee for Aeronautics, April 19, 1929, Washington, United States Government Printing Office, 1929, pp. 23, ills., diagrs., tabls.

- Report No. 304. An investigation of the aerodynamic characteristics of

an airplane equipped with several different sets of wings, by J. W. Crowley, jr., and M. W. Green.

National Advisory Committee for Aeronautics, April 12, 1929, Washington, United States Government Printing Office, 1929, pp. 14, ills., diagrs., tabls.

- Report No. 305. The gaseous explosive reaction—a study of the kinetics

of composite fuels, by F. W. Stevens.

National Advisory Committee for Aeronautics, March 15, 1929, Washington, United States Government Printing Office, 1929, pp. 18, ill., diagrs., tabls.

- Report No. 306. Full-scale wind-tunnel tests of a series of metal propellers on a VE-7 airplane, by Fred E. Weick.

National Advisory Committee for Aeronautics, March 29, 1929, Washington, United States Government Printing Office, 1929, pp. 18, ill., diagrs., tabls.

- Report No. 307. The pressure distribution over the horizontal and vertical tail surfaces of the F6C-4 pursuit airplane in violent maneuvers, by R. V. Rhode.

National Advisory Committee for Aeronautics, June 12, 1929, Washington, United States Government Printing Office, 1929, pp. 20, ills., diagrs., tabls.

- Report No. 309. Joint report on standardization tests on N. P. L. R. A.

F. 15 airfoil model, by Walter S. Diehl.

National Advisory Committee for Aeronautics, May 18, 1929, Washington, United States Government Printing Office, 1929, pp. 20, ills., diagrs., tabls.

- Report No. 310. Pressure element of constant logarithmic stiffness for

temperature compensated altimeter, by W. G. Brombacher and F. Cordero.

National Advisory Committee for Aeronautics, May 29, 1929, Washington, United States Government Printing Office, 1929, pp. 13, ills., diagrs.

- Report No. 311. Aerodynamic theory and test of strut forms, by R. H.

Smith.

National Advisory Committee for Aeronautics, Aug. 16, 1929, Washington, United States Government Printing Office, 1929, pp. 24, ills., diagrs.

- Report No. 312. The prediction of airfoil characteristics, by George J.

Higgins.

National Advisory Committee for Aeronautics, Sept. 18, 1929, Washington, United States Government Printing Office, 1929, pp. 13, diagrs., tabl.

- Report No. 313. Drag and cooling with various forms of cowling for a

" Whirlwind " radial air-cooled engine—I, by Fred E. Weick.

National Advisory Committee for Aeronautics, June 5, 1929, Washington, United States Government Printing Office, 1929, pp. 26, ills., diagrs., tabls.

- Report No. 314. Drag and cooling with various forms of cowling for a

" Whirlwind " radial air-cooled engine—II, by Fred E. Weick.

National Advisory Committee for Aeronautics, Feb. 11, 1929, Washington, United States Government Printing Office, 1929, pp. 22, ills., diagrs., tabls.

- Report No. 315. Aerodynamic characteristics of airfoils—VI, by National

Advisory Committee for Aeronautics.

National Advisory Committee for Aeronautics, June 26, 1929, Washington, United States Government Printing Office, 1929, pp. 381-418, diagrs.

- Report No. 316. Tables for pressure of air on coming to rest from various

speeds, by A. F. Zahm and F. A. Louden.

National Advisory Committee for Aeronautics, July 12, 1929, Washington, United States Government Printing Office, 1929, pp. 8, tabls.

National Advisory Committee for Aeronautics. Report No. 317. Wind tunnel tests on a series of wing models through a large angle of attack range Part I—Force tests, by Montgomery Kn"ght and Carl J. Wenziner.

National Advisory Committee for Aeronautics, Nov. 13, 1929 [Washington], pp. 49, ills., diagrs., tabls.

- Report No. 318. Speed and deceleration trials of U. S. S. Los Angeles,

by S. J. De France and C. P. Burgess.

National Advisory Committee for Aeronautics, Oct. 9, 1929 [Washington], pp. 20, ill., diagrs., tabls.

- Report No. 319. Aerodynamic characteristics of twenty-four airfoils at

high speeds, by L. J. Briggs and H. L. Dry den.

National Advisory Committee for Aeronautics, Oct. 16, 1929, Washington, United States Government Printing Office, 1929, pp. 32, ills., diagrs., tabls.

- Report No. 320. The measurement of fluctuations of air speed by the hotwire anemometer, by H. L. Dryden and A. M. Kuethe.

National Advisory Committee for Aeronautics, Oct. 30, 1929, Washington, United States Government Printing Office, 1929, pp. 26, ills., diagrs., tabls.

- Report No. 321. Fuel vapor pressures and the relation of vapor pressure

to the preparation of fuel for combustion in fuel injection engines, by Wm. F. Joachim and A. M. Rothrock.

National Advisory Committee for Aeronautics, Sept. 25, 1929 [Washington], pp. 13, ills., diagrs.

- Report No. 322. Investigation of air flow in open-throat wind tunnels, by

Eastman N. Jacobs.

National Advisory Committee for Aeronautics, Sept. 30, 1929, Washington, United States Government Printing Office, 1929, pp. 11, ills., diagrs.

- Report No. 323. Flow and force equations for a body revolving in a fluid,

by A. F. Zahm.

National Advisory Committee for Aeronautics, Jan. 14, 1930 [Washington], pp. 41, ills., tabls.

- Report No. 324. Flight tests on U. S. S. " Los Angeles." Part I—Full

scale pressure distribution investigation, by S. J. De France.

National Advisory Committee for Aeronautics, Nov. 18, 1929 [Washington], pp. 33, ills., diagrs., tabls.

- Report No. 325. Flight tests on U. S. S. " Los Angeles." Part II—Stress

and strength determination, by C. P. Burgess.

National Advisory Committee for Aeronautics, Nov. 22, 1929 [Washington], pp. 16, ills., diagrs., tabls.

- Report No. 326. Tests of five metal model propellers with various pitch

distributions in a free wind stream and in combination with a model VE-7 fuselage, by E. P. Lesley and Elliott G. Reid.

National Advisory Committee for Aeronautics, Nov. 27, 1929 [Washington], pp. 18, ills., diagrs., tabls.

- Report No. 327. The effect of supercharger capacity on engine and airplane performance, by O. W. Schey and W. D. Gove.

National Advisory Committee for Aeronautics, Dec. 4, 1929 [Washington], pp. 20, ill., diagrs., tabls.

- Report No. 328. Water pressure distribution on a twin-float seaplane, by

F. L. Thompson.

National Advisory Committee for Aeronautics, Dec. 11, 1929 [Washington], pp. 18, ills., diagrs., tabls.

- Report No. 329. The torsional strength of wings, by C. P. Burgess.

National Advisory Committee for Aeronautics, Dec. 18, 1929 [Washington], pp. 14, ill., diagrs., tabls.

9573—30-11

National Advisory Committee for Aeronautics. Report of proceedings of Fourth Annual Aircraft Engineering Research Conference. Under auspices of the National Advisory Committee for Aeronautics, Langley Field, Va. May 14, 1929.

Washington, May 14, 1929 (mimeographed), pp. 35, group port.

- Technical Memorandums No. 493. Aerodynamic characteristics of thin

empirical profiles and their application to the tail surfaces and ailerons of airplanes, by A. Toussaint and E. Carafoli.

National Advisory Committee for Aeronautics, Dec. 31, 1928 (mimeographed), Washington, Dec. 1928, pp. 15, ill. From L'Aérophile, June 1928.

- Technical Memorandums No. 494. " Safety " fuels for aircraft engines,

by A. Grebel.

National Advisory Committee for Aeronautics, Jan. 3, 1929 (mimeographed), Washington, Jan. 1929, pp. 25, diagrs.

From " Mémoires et compte rendu des travaux de la Société des Ingénieurs Civils de France July-August, 1927.

- Technical Memorandums No. 495. Device for the automatic control of

airplanes, by Alfred Gradenwitz.

National Advisory Committee for Aeronautics, Jan. 10, 1929 (mimeographed), Washington, Jan. 1929, pp. 6, ill.

From Der Motorwagen, March 31, 1928.

- Technical Memorandums No. 496. Photogrammetric take-off and landing

measurements, by Bruno Spieweck.

' National Advisory Committee for Aeronautics, Jan. 17, 1929 (mimeographed), Washington, Jan. 1929, pp. 14, ills., diagrs., tahls.

From Yearbook of the Wissenschaftliche Gesellshaft für Luftfahrt, Dec. 1926.

- Technical Memorandums No. 497. Effect of oxygen on the ignition of

liquid fuels, by H. Pähl.

National Advisory Committee for Aeronautics, Jan. 24, 1929 (mimeographed), Washington, Jan. 1929, pp. 13, ills., diagrs.

From Zeitschrift des Vereines deutscher Ingenieure, June 16, 1928.

- Technical Memorandums No. 498. Fluttering of the tail surfaces of an

airplane and the means for its prevention, by F. N. Scheubel.

National Advisory Committee for Aeronautics, Jan. 31, 1929 (mimeographed), Washington, Jan. 1929, pp. 16, ills., diagrs.

From Jahrbuch der Wissenschaftlichen Gesellschaft für Luftfahrt, December, 1926.

- Technical Memorandums No. 499. Danger of ice formation on airplanes,

» by W. Kopp.

National Advisory Committee for Aeronautics, Feb. 7, 1929 (mimeographed), Washington, Feb. 1929, pp. 14, diagr., tabls.

- Technical Memorandums No. 500. Remarks on airplane struts and

girders under compressive and bending stresses. Index values, by Herbert Wagner.

National Advisory Committee for Aeronautics, Feb. 14, 1929 (mimeographed), Washington, Feb. 1929, pp. 26, ills., diagrs.

From Zeitschrift für Flutechnik und motorluftschiffahrt, June 14, 1928.

- Technical Memorandums No. 501. Effect of intake pipe on the volumetric

efficiency of an internal combustion engine, by Antonio Capetti.

National Advisory Committee for Aeronautics, Feb. 28, 1929 (mimeographed), Washington, Feb. 1929, pp. 22, ills., diagrs., tabls.

From Annalli della R. Scuola d'Ingegneria di Padova, Dec. 1927.

National Advisory Committee for Aeronautics. Technical Memorandums No. 502. Analysis of flight and wind-tunnel tests on Udet airplanes with reference to spinning characteristics, by H. Hermann.

National Adivsory Committee for Aeronautics, March 12, 1929 (mimeographed), Washington, March 1929, pp. 21, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, January 14, 1929.

- Technical Memorandums No. 503. Effect of stressed covering on strength

of internal girders of a wing, by H. Tellers.

National Advisory Committee for Aeronautics, March 7, 1929 (mimeographed), Washington, March, 1929, pp. 13, ills.

From the 1928 Yearbook of the Wissenschaftliche Gesellschaft für Luftfahrt.

- Technical Memorandums No. 504. Mechanical control of airplanes, by H.

Boykow.

National Advisory Committee for Aeronautics, March 18, 1929 (mimeographed), Washington, March 1929, pp. 25, ills.

From the 1927 Yearbook of the Wissenschaftliche Gesellschaft für Luftfahrt.

- Technical Memorandums Nos. 505 and 506. Impact waves and detonation, by R. Becker.

National Advisory Committee for Aeronautics, March 21 and 28, 1929 (mimeographed), Washington, March 1929, Part I, pp. 41, ills.; Part II, pp. 24, ill., diagrs.

From Zeitschrift für Physik, Volume VIII.

- Technical Memorandums No. 507. Landing and braking of airplanes, by

Louis Breguet.

National Advisory Committee for Aeronautics, April 4, 1929 (mimeographed), Washington, April 1929, pp. 28, diagrs, tabls.

From supplements to Nos. 8 and 9, 1928, of La Chronique des Avions Breguet.

- "Technical Memorandums No. 508. Aeromechanical experimentation

(Wind-tunnel tests), by R. Katzmayr.

National Advisory Committee for Aeronautics, April 11, 1929 (mimeographed), Washington, April 1929, pp. 16, ills. From Luftflotten, 1928.

- Technical Memorandums No. 509. The transformation of heat in an

engine, by Kurt Neumann.

National Advisory Committee for Aeronautics, April 18, 1929 (mimeographed), Washington, April 1929, pp. 28, ills.

From Geiger and Scheel's Handbuch der Physik, Chapter 9, Volume XI, 1926.

- Technical Memorandums No. 510. Theoretical investigation of the effect

of the ailerons on the wing of an airplane, by C. Wieselsberger.

National Advisory Committee for Aeronautics, April 25, 1929 (mimeographed), Washington, April 1929, pp. 25, diagrs.

From Report of the Aeronautical Research Institute, Tokyo Imperial University, No. 30, Vol. II, 16, December 1927.

- Technical Memorandums No. 511. On the strength of box-type fuselages,

by J. Mathar.

National Advisory Committee for Aeronautics, May 2, 1929 (mimeographed), Washington, May 1929, pp. 11, ills.

From the 1928 Yearbook of the Wissenschaftliche Gesellschaft für Luftfahrt.

- Technical Memorandums Nos. 512 and 513. Contribution to the technique of landing large airships, by O. Krell.

National Advisory Committee for Aeronautics, May 16, 1929 (mimeographed), Washington, May 1929, Part I, pp. 26, ills. ; Part II, pp. 29, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt September 28, 1928.

National Advisory Committee for Aeronautics. Technical Memorandums No. 514. Technical report on the 1928 Rhön soaring-flight contest, by A. Lippisch. National Advisory Committee for Aeronautics, May 23, 1929 (mimeographed), Washington, May 1929, pp. 12, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, February 14, 1929.

- Technical Memorandums No. 515. Materials and methods of construction in light structures, by Adolf Rohrbach.

National Advisory Committee for Aeronautics, May 31, 1929 (mimeographed), Washington, May 1929, pp. 46, ills.

From the Yearbook of the Wissenschaftliche Gesellschaft für Luftfahrt, December 1926.

- Technical Memorandums No. 516. Crank-case scavenging of two-stroke-cycle engines, by Hans List.

National Advisory Committee for Aeronautics, June 6, 1929 (mimeographed), Washington, June 1929, pp. 14, diagrs.

From Zeitschrift des Vereines deutscher Ingenieure February 16, 1929.

- Technical Memorandums No. 517. Investigation of the effect of the

fuselage on the wing of a low-wing monoplane, by H. Muttray.

National Advisory Committee for Aeronautics, June 13, 1929 (mimeographed), Washington, June 1929, pp. 16, ills., diagrs. From Luftfahrtforschung, June 11, 1928.

- Technical Memorandums No. 518. Investigation of atomization in carburetors, by J. Sauter.

National Advisory Committee for Aeronautics, June 20, 1929 (mimeographed), Washington, June 1929, pp. 10, ills., diagrs.

From Zeitschrift des Vereines deutscher Ingenieure, November 3, 1928.

- Technical Memorandums No. 519. Force measurements on airplanes, by

F. Seewald.

National Advisory Committee for Aeronautics, June 27, 1929 (mimeographed), Washington, June 1929, pp. 22, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, October 7, 1928.

- Technical Memorandums No. 520. Torsional rigidity of cantilever wings

with constant spar and rib sections, by Giuseppe Gabrielli.

National Advisory Committee for Aeronautics, June 5, 1929 (mimeographed), Washington, July 1929, pp. 39, diagrs. From Luftfahrtforschung, June 26, 1928.

-■ Technical Memorandums No. 521. Wings with nozzle shaped slots, by

Richard Katzmayr.

National Advisory Committee for Aeronautics, June 11, 1929 (mimeographed), Washington, July 1929, pp. 28, ills., diagrs., tabls.

From Berichte der Aerodynamischen Versuchsanstalt in Wien, Vol. 1, No. 1 (1928).

■- Technical Memorandums No. 522. The analysis of aircraft structures as

space frameworks. Method based on the forces in the longitudinal members, by Herbert Wagner.

National Advisory Committee for Aeronautics, June 18, 1929 (mimeographed), Washington, July 1929, pp. 35, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, August 14, 1928.

- Technical Memorandums No. 523. Autogenous welding in airplane construction, by Ludwig Kuchel.

National Advisory Committee for Aeronautics, July 25, 1929 (mimeographed), Washington, July 1929, pp. 8 ills.

From Schweissen, Schneiden und Metallspritzen mittels Acetylen, 1927.

- Technical Memorandums No. 524. Lautal as a material for airplane construction, by Paul Brenner.

National Advisory Committee for Aeronautics, August 1, 1929 (mimeographed), Washington, August 1929, pp. 26, ills., tabls.

From 1928 Yearbook of the Deutsche Versuchsanstalt für Luftfahrt.

National Advisory Committee for Aeronautics. Technical Memorandums No. 525. Buckling tests of light-metal tubes, by August Schroeder.

National Advisory Committee for Aeronautics, Aug. 8, 1929 (mimeographed), Washington, August 1929, pp. 18, ills., diagrs., tabls.

From 1928 Yearbook of the Deutsche Versuchsanstalt für Luftfahrt.

- Technical Memorandums Nos. 526, 527, 528, 529. Metal construction development, by H. J. Pollard. Part I : General. Strip metal construction-fuselage. Part II: Strip metal construction—wing spars. Part III: Workshop practice. Strip metal construction—wing ribs. Part IV: Moments of inertia of thin corrugated sections.

National Advisory Committee for Aeronautics, Aug. 15, 22, 29, Sept. 6, 1929 (mimeographed), Washington, August, September 1929, pp. 26, 22, 24, 9, ills., diagrs., tabls.

From Flight, Jan. 26, Feb. 23, March 29, May 31, June 21, July 19, Oct. 25, Dec. 27, 1928; April 25, 1929.

- Technical Memorandums No. 530. Travel of the center of pressure of

airfoils transversely to the air stream, by Richard Katzmayr.

National Advisory Committee for Aeronautics, Sept. 16, 1929 (mimeographed), Washington, September 1929, pp. 14, ills., diagrs., tabls.

From Berichte der Aeromechanischen Versuchsanstalt in Wien, Volume I. No. 1, 1928.

- Technical Memorandums No. 531. Welding rustproof steels, by W.

Hoffmann.

National Advisory Committee for Aeronautics, Sept. 19, 1929 (mimeographed). Washington, September 1929, pp. 9, ills., diagrs., tabls.

From Autogene Metallbearbeitung, December 15, 1927 (Vol. 20>.

- Technical Memorandums No. 532. Welding of stainless materials, by

H. Bull and Lawrence Johnson.

National Advisory Committee for Aeronautics, Sept. 30, 1929 (mimeographed). Washington, September 1929, pp. 37, ills.

From Industrial Gases, March and June 1928.

- Technical Memorandums No. 533. Handley Page metal construction.

National Advisory Committee for Aeronautics, Oct. 3, 1929 (mimeographed), Washington, October 1929, pp. 8, ills. From Flight, May 9, 1929.

- Technical Memorandums No. 534. Experiments with a wing model from

which the boundary is removed by suction, by Oskar Schrenk.

National Advisory Committee for Aeronautics, Oct. 10, 1929 (mimeographed), Washington, October 1929, pp. 31, ills., diagrs., tabls. From Luftfahrtforschung, June 11, 1928.

- Technical Memorandums No. 535. Information obtained from airplane

flight tests in the year 1927-1928, by W. Hübner.

National Advisory Committee for Aeronautics, Oct. 17, 1929 (mimeographed), Washington, October 1929, pp. 24, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, April 29, 1929.

- Technical Memorandums Nos. 536, 537. Fire prevention on airplanes, by

J. Sabatier.

National Advisory Committee for Aeronautics, Oct. 29, 30, 1929 (mimeographed), Washington, October 1929, Part I: pp. 46, ills.; Part II: pp. 46.

From Bulletin Technique No. 56, of the Service Technique et Industriel de l'Aéronautique, Jan. 1929.

-- Technical Memorandums No. 538. Cantilever wings for modern aircraft.

Some aspects of cantilever wing construction with special reference to weight and torsional stiffness, by H. J. Stieger.

National Advisory Committee for Aeronautics, Nov. 7, 1929 (mimeographed), Washington, November 1929, pp. 14, ills., diagrs. From Aircraft Engineering, August 1929.

National Advisory Committee foe Aeronautics. Technical Memorandums No. 539. Unsymnietrical forces in an airplane cell, by R. Vogt.

National Advisory Committee for Aeronautics, Nov. 14, 1929 (mimeographed), Washington, November 1929, pp. 9, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, June 14, 1929.

- Technical Memorandums No. 540'. Mathematical and experimental investigation of heat control and power in crease in air-cooled aircraft engines, by F. Gosslau.

National Advisory Committee for Aeronautics, Nov. 21, 1929 (mimeographed), Washington, November 1929, pp. 12, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, October 7, 1928.

- Technical Memorandums No. 541. Technical details in the structural

development of Rohrbach seaplanes, by Gotthold Mathias and Adolf Holzapfel.

National Advisory Committee for Aeronautics, Nov. 29, 1929 (mimeographed), Washington, November 1929, pp. 12, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, July 15, 1929.

- Technical Memorandums No. 542. Contribution to the aileron theory, by

A. Betz and E. Petersohn.

National Advisory Committee for Aeronautics, Dec. 5, 1929 (mimeographed), Washington, December 1929, pp. 9, diagrs.

From Zeitschrift für angewandte Mathematik und Mechanik, Volume VIII. 1928.

- Technical Memorandums No. 543. Calculation of the pressures on aircraft engine bearings, by O. Steigenberger.

National Advisory Committee for Aeronautics, Dec. 12, 1929 (mimeographed), Washington, December 1929, pp. 17, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, March 14, 1929.

- Technical Memorandums No. 544. Airplane drag, by Carl Töpfer.

National Advisory Committee for Aeronautics, Dec. 19, 1929 (mimeographed), Washington, December 1929, pp. 15, ills. From Luftwacht, September 1929.

-- Technical Memorandums No. 545. The balance of moments and the static

longitudinal stability of airplanes, by Horst Müller.

National Advisory Committee for Aeronautics, Dec. 26, 1929 (mimeographed), Washington, December 1929, pp. 12, diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, January 28, 1929.

- Technical Notes No. 302. A new method for the prediction of airplane

performance, by E. P. Lesley and E. G. Reid.

National Advisory Committee for Aeronautics, Feb. 12, 1929 (mimeographed), Washington, February 1929, pp. 25, diagrs., tabls.

- Technical Notes No. 303. Condensed data on the aircraft engines of the

world. Compiled by C. S. Fliedner.

National Advisory Committee for Aeronautics, Apr. 30, 1929 (mimeographed), Washington, April 1929, pp. 15, tabls.

- Technical Notes Nos. 304, 305. Corrosion embrittlement of duralumin.

V. Results of weather-exposure tests; VI. The effect of corrosion, accompanied by stress on the tensile properties of sheet duralumin, by Henry S. Rawdon.

National Advisory Committee for Aeronautics, Feb. 28, 1929, May 21, 1929 (mimeographed), Washington, V. February 1929, pp. 26, ills., tabls.; VI. May 1929, pp. 26, ills.

- Technical Notes No. 306. Curves showing column strength of steel and

duralumin tubing, by Orrin E. Ross.

National Advisory Committee for Aeronautics, May 28, 1929 (mimeographed), Washington, May 1929, pp. 12, ills., diagrs., tabls.

National Advisory Committee for Aeronautics. Technical Notes No. 307. Strength of tubing under combined axial and transverse loading, by L. B. Tuckerman, S. N. Petrenko, and C. D. Johnson.

National Advisory Committee for Aeronautics, June 7, 1929 (mimeographed), Washington, June 1929, pp. 17, diagrs., tabls.

- Technical Notes No. 308. Pressure distribution on a slotted R. A. F. 31

airfoil in the variable density wind tunnel, by Eastman N. Jacobs.

National Advisory Committee for Aeronautics, June 28, 1929 (mimeographed), Washington, June 1929, pp. 13, ills., diagrs., tahl.

- Technical Notes No. 309. Correcting engine tests for humidity, by Donald

B. Brooks.

National Advisory Committee for Aeronautics, June 21, 1929 (mimeographed), Washington, June 1929, pp. 12, diagrs.

- Technical Notes No. 310. Wind tunnel pressure distribution tests on a

series of biplane wing models, Part I. Effects of changes in stagger and gap, by Montgomery Knight and Richard W. Noyes.

National Advisory Committee for Aeronautics, June 10, 1929 (mimeographed), Washington, July 1929, pp. 13, ills., diagrs., tabl.

- Technical Notes No. 311. The use of wheel brakes on airplanes, by

Thomas Carroll and Smith J. DeFranee.

National Advisory Committee for Aeronautics, July 30, 1929 (mimeographed), Washington, July 1929, pp. 9, ills., diagrs.

- Technical Notes No. 312. Sphere drag tests in the variable density wind

tunnel, by Eastman N. Jacobs.

National Advisory Committee for Aeronautics, Aug. 13, 1929 (mimeographed), Washington, August 1929, pp. 10, ills., diagrs.

- Technical Notes No. 313. The formation of ice upon airplanes in flight,

by Thomas Carroll and William H. McAvoy.

National Advisory Committee for Aeronautics, Aug. 20, 1929 (mimeographed), Washington, August 1929, pp. 13, ills.

- Technical Notes No. 314. Spiral tendency in blind flying, by Thomas

Carroll and William H. McAvoy.

National Advisory Committee for Aeronautics, Aug. 27, 1929 (mimeographed), Washington, August 1929, pp. 5, (26), ills., diagrs.

- Technical Notes No. 315. Viscosity of Diesel engine fuel oil under pressure, by Mayo D. Hersey.

National Advisory Committee for Aeronautics, Sept. 3, 1929 (mimeographed), Washington, September 1929, pp. 8, diagrs., tabls.

- Technical Notes No. 316. Wind-tunnel tests on a model of a monoplane

wing with floating ailerons, by Montgomery Knight and Millard J. Bamber.

National Advisory Committee for Aeronautics, Sept. 10, 1929 (mimeographed), Washington, September 1929, pp. 13, ills., diagrs., tabls.

- Technical Notes No. 317. Tests of four racing type airfoils in the twenty-foot propeller research tunnel, by Fred E. Weick.

National Advisory Committee for Aeronautics, Sept. 17, 1929 (mimeographed), Washington, September 1929, pp. 6, ills., diagrs, tabls.

- Technical Notes No. 318. Full-scale investigation of the drag of a wing

radiator, by Fred E. Weick.

National Advisory Committee for Aeronautics, Sept. 24, 1929 (mimeographed), Washington, September 1929, pp. 5, ills., diagrs., tabls.

- Technical Notes No. 319. Some experiments on autorotation of an airfoil,

by Shatswell Ober.

National Advisory Committee for Aeronautics, Sept. 27, 1929 (mimeographed), Washington, September 1929, pp. 10, ill., diagrs.

National Advisory Committee for Aeronautics. Technical Notes No. 320. The drag and interference of a nacelle in the presence of a wing, by Eastman N. Jacobs.

National Advisory Committee for Aeronautics, Oct. 1, 1929 (mimeographed), Washington, October 1929, pp. 12, ills., diagrs.

- Technical Notes No. 321. The impact on seaplane floats during landing,

by Th. von Karman.

National Advisory Committee for Aeronautics, Oct. 4, 1929 (mimeographed), Washington, October 1929, pp. 8, ill.

- Technical Notes No. 322. The effect of the wings of single-engine airplanes on propulsive efficiency as shown by full scale wind tunnel tests, by Fred E. Weick and Donald H. Wood.

National Advisory Committee for'Aeronautics, Oct. 8, 1929 (mimeographed), Washington, October 1929, pp. 22, ills., diagrs., tabls.

- Technical Notes No. 323. Wind-tunnel tests on airfoil boundary layer

control using a backward opening slot, by Montgomery Knight and Millard J. Bamber.

National Advisory Committee for Aeronautics, Oct. 15, 1929 (mimeographed), Washington, October 1929, pp. 6, ill., diagrs.

- Technical Notes No. 324. Wind-tunnel tests on an airfoil equipped with a

split flap and a slot, by Millard J. Bamber.

National Advisory Committee for Aeronautics, Oct. 18, 1929 (mimeographed), Washington, October 1929, pp. 6, ills., diagrs., tabl.

- Technical Notes No. 325. Wind-tunnel pressure distribution tests on a

series of biplane wing models. Part II. Effects of changes in décalage, dihedral, sweepback, and overhang, by Montgomery Knight and Richard W. Noyes.

National Advisory Committee for Aeronautics, Oct. 29, 1929 (mimeographed), Washington, October 1929, pp. 6, ills., diagrs.

- Technical Notes No. 326. Wind-tunnel pressure distribution tests on an

airfoil with trailing edge flap, by Carl J. Wenzinger and Oscar Loeser, jr.

National Advisory Committee for Aeronautics, Oct. 31, 1929 (mimeographed), Washington, October 1929, pp. 10, ills., diagrs., tabls.

- Technical Notes No. 327. Some studies on the aerodynamic effect of the

gap between airplane wings and fuselages, by Shatswell Ober.

National Advisory Committee for Aeronautics, Nov. 12, 1929 (mimeographed), Washington, November 1929, pp. 7, ills., diagrs.

- Technical Notes No. 328. The effect of fuel consumption on cylinder temperatures and performance of a cowled Wright J-5 engine, by Oscar W. Schey.

National Advisory Committee for Aeronautics, Nov. 30, 1929 (mimeographed), Washington, November 1929, pp. 18, ills., diagrs., tabls.

- Technical Notes No. 329. Some effects of air flow on the penetration and

distribution of oil sprays, by A. M. Rothrock and E. G. Beardsley.

National Advisory Committee for Aeronautics, Dec. 23, 1929 (mimeographed), Washington, December 1929, pp. 11, ills., diagrs.

- Travaux du N. A. C. A.

L'Aéronautique (L'Aérotechnique, 7e année, No. 81), lime année, No. 124 (sept. 1929), Paris, p. 304.

-. See Accidents : Los accidentes de aviación y sus causas.

- See Bingham, Hiram : Amendment to Air Commerce Act introduced by

Senator Hiram Bingham passes Congress.

National Advisory Committee for Aeronautics. See Caspari, Walter: Zergliederung und statische Erfassung von Flugzeugunfällen.

- See Christopher, Luke: Upside down and tail first! Being one of the

experiences of a test pilot who developed the greatest acceleration ever recorded on an airplane.

- See LePage, W. Laurence: The N. A. C. A. " at home " at Langley Field.

- See Lewis, C. W.: N. A. C. A. cowling experiments interest S. A. E. at

Detroit.

- See M. R. J.: Les meilleures formes de capotage pour les moteurs radiaux

refroidis par Fair.

- See McAvoy, William H.: Notes on the design of the N. A. C. A. cowling.

- See Margoulis, W.: A propos de la supersoufflerie de Langley Field.

- See Neely, Frederick R.: The N. A. C. A. conference. The Government

and industry again demonstrate their ability to work together.

- See Vultee, Gerard F.: The new N. A. C. A. cowling and its application

to the Lockheed "Air Express."

- See Vultee, Gerard F.: 20 miles faster.

- See Win,d tunnels: The N. A. C. A. 20-foot propeller research tunnel.

National Aeronautic Association. N. A. A. officials elected by the eighth annual convention of the Association.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, p. 15, ports.

- Text of N. A. A. flying club rules.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 35-36.

- Texts of resolutions adopted at the eighth annual convention of the

N. A. A.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929) Washington, pp. 36, 56.

- See Bingham, Hiram: The National Aeronautic Association's part.

- See Bingham, Hiram: President Bingham's speech at unveiling of

N. A. A. marker.

- See Caspari, W.: Internationale Normung.

- See Christopher, Luke: Schory's successor appointed. Luke Christopher

takes contest committee duty.

- See Codd, L. A.: N. A. A. invited to ordnance display. Entire membership to be guests at eleventh annual meeting of Army Ordnance Association at Aberdeen, Md., Proving Ground, October 10.

- See Edgerton, Joseph S.: The air classic of the century. The N. A. A.'s

annual flying meet goes down in history as the greatest to date. Complete official results of all events.

- See Neely, Frederick R.: The eighth annual convention of the National

Aeronautic Association. Senator Hiram Bingham unanimously reelected president; detailed report of the proceedings.

- See Neely, Frederick R.: N. A. A. marks site of first airplane flight with

impressive ceremonies at Kitty Hawk.

- See Schory, Carl F.: C. F. Schory resigns.

- See Schory, Carl F.: Program of aircraft competitions for 1929. Sanctioned by N. A. A. contest committee.

National Aie Races. The air races results,

Airway Age, Vol. 10, No. 10 (Oct. 1929), New York, pp. 1623-1628, ill.

- Complete official results, National Air Races, Cleveland, Ohio, August

24-September 2. Held under the sanction of the N. A. A.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 46-51.

- The National Air Races and aeronautical exposition, Cleveland, Ohio,

August 24th to September 2nd, 1929.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 54-56, 120-126, ill.

- The 1929 National air races.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 90, 239-240, ill.

- See Bingham, Hiram: History of the National Air Races. An interesting

record of the progress of American aeronautics as reflected in the races since 1920.

- See Johns, Russell C.: Observations at the National Air Races exposition.

- See Logan, Floyd J.: The 1929 National Air Races. Summary and text

of contests and events to be featured at Cleveland.

- See Nevill, John T.: Final preparations for the National Air Races.

- See Ross, L. F.: Gliders to compete at the National Air Races.

- See Young, Clarence M.: The National Air Races and' commercial

aviation.

National Aie Tour. The Fifth annual National Air Tour.

Aviation, Vol. 26, No. 22 (June 1, 1929), New York, pp. 1874-1875, ill.

- The 1929 National Air Tour.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 100, 242.

National Air Transport. N. A. T. maintenance work well organized.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 142-146, ill.

National Bureau of Standards. See Briggs, Lyman J.: Aeronautics research at the National Bureau of Standards.

National Interests Photos. See United States Navy: Our air navy.

Natural flight. See Boel, Maurice: Scientific studies of natural flight.

Naval airplanes. Model designation of Naval airplanes.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 92, 316-320, ill.

Navigation. See Aerotechnique: Une machine a calculer le point.

- See Air-navigation: Stock taking of air-navigation aids.

- See Brion, M.: Methode et appareils simples de navigation ä l'estime.

- See Clephane, Douglas W.: Air navigation maps.

- See Duncan, Richard: Air navigation and meteorology.

- See Elm, Ienar Ewald: Avigation by dead reckoning (aerial navigation).

- See Fairlamb, George R., jr.: The how and why of navigation.

- See Herbert, Percy: Herbert air navigation course. Lesson 1—.

- See Immler, Werner: Grundsätzliches zur Flugzeugnavigation.

- See Immler, Werner: Leitfaden der flugzeugnavigation.

- See Instruments: Navigator's triangulator based on the slide rule.

Navigation. See Jeffrey, C. D. G. : Aerial navigation.

- See Loth, William: Navigation.—Au Sujet du guidage des navires ou

aeronefs par ondes dirigées.

- See Maurer, H. : Der Schiffsort bei drei Funkpeilungen.

- See Spencer, G. K. : Artificial horizon for aircraft.

- See Wedemeyer, A. : Die Standlinie bei der Funkortung.

- See Weems, P. V. H. : The navigation equipment of the Graf Zeppelin.

- See Weems, P. V. H. : Navigation without calculation.

- See Yancey, Lewis Alonzo: Aerial navigation and meteorology; a comprehensive treatise in simple language for the student with an average education.

Nealey, J. B. Heat-treating aircraft engine bearings.

Amer. Mach., Vol. 71, No. 26 (Dec. 26, 1929), New York, pp. 1041-1042, ill.

Nebesar, Robert J. The theory of long-distance flight.

Aircraft Engineer suppl. Flight, Vol. 21, No. 17 (Apr. 25, 1929), London, pp. 338d-338i, diagrs.

Nebout, G. A. Le Ministère de l'Air. Paris, Presses Modernes.

Neely, Frederick R. Aircraft accidents.

Aeronautic Review, Vol. 7, No. 3 (March 1929), Washington, p. 5.

- The incontestable clause. It has an important bearing on your flying;

read your insurance policy.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, pp. 18, 30.

- The eighth annual convention of the National Aeronautic Association.

Senator Hiram Bingham unanimously reelected president; detailed report of the proceedings.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 13-20, ill.

- The N. A. A. convention.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, pp. 23-24, port.

- N. A. A. marks site of first airplane flight with impressive ceremonies

at Kitty Hawk.

Aeronautic Review, Vol. 7, No. 1 (Jan. 1929), Washington, .pp. 4-7, ill.

- The N. A. O. A. conference. The Government and industry again demonstrate their ability to work together.

Aeronautic Review, Vol. 7, No. 6 (June 1929), Washington, pp. 27, ill.

- The public demand. A citizen and income-taxpayer dares to tell the

Army and Navy what he thinks about the 1929 Cleveland air races.

Aeronautic Review, Vol. 7, No. 8 (Aug. 1929), Washington, pp. 16, 30.

- The ring of the ZRS~4. Thousands witness impressive and historical

ceremony at Akron on November 7.

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 34-35, 59, ill.

-- To Siberia and return. Alaskan airmen blaze a commercial air trail

across the Arctic wastes.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, pp. 14-15, 31, ills., map.

Negro, Piero [Pierre la Pipe]. Annuario della aviazione civile italiana, autorizzato dal ministero dell'aeronautica ; anno 1, 1929-30 e. f., VII. Torino, tip. E. Schioppo, 1929, pp. 527.

Opere di propaganda nazionale per l'incremento di industrie, commerci ed arti; anno XXXIV.

Nelson, Erik. World flights mark progress.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 52, 254, 256.

Nelson, William. Airplane engine maintenance and overhaul.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 13-18, ill.

- Cardinal factors in aircraft production.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 638-641, ill.

Neon lamps. See Fog: Neon lamp visibility through fog.

Neuenhofen. See Koschel, E.: Über den Höhenrekordflug Neuenhofens.

Neumann, Georg Paul. In der Luft unbesiegt. München, Lehmann.

Neumann, Kurt. The transformation of heat in an engine.

National Advisory Committee for Aeronautics, Technical Memorandums No. 509, April 18, 1929, Washington, April 1929, pp. 28, ills.

From Geiger and Scheel's Handbuch der Physik, Chapter 9, Volume XI, 1926.

- See Diesel engine: The precompression-chamber Diesel engine.

Nevill, John T. Detroit's all-American aircraft show.

Aviation, Vol. 26, No. 13 (March 30, 1929), New York, pp. 950-953, ill.

- The fifth annual national air tour.

Aviation, Vol. 27, No. 13 (Sept. 28, 1929), New York, pp.. 670-673, ill., map.

- The fifth annual national air tour takes off.

Aviation, Vol. 27, No. 14 (Oct. 5, 1929), New York, pp. 736-739.

- Final preparations for the National Air Races.

Aviation, Vol. 27, No. 7 (Aug. 17, 1929), New York, pp. 328-330, ill., plan.

- First flights of the metal-clad airship.

Aviation, Vol. 27, No. 9 (Aug. 31, 1929), New York, pp. 474-478, ill.

- The first national air traffic conference.

Aviation, Vol. 27, No. 13 (Sept. 28, 1929), New York, pp. 653-658, ill.

-- Ford Motor Company and American aeronautic development.

Aviation, Vol. 26, Nos. 22, 23 (June 1, 8, 1929), New York, pp. 1870-1873, 2073-2076, ill. Vol. 27, Nos. 4, 6, 7, 15 (July 27, Aug. 10, 17, Oct. 12, 1929), New York pp. 229-231, 306-308, 339-341, 753-755, ill.

- The National Air Races, day by day and in summary.

Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, pp. 524-535, ill.

- A 1929 air tour? Some informative remarks regarding the rules, the

complaints, and the situation as it now stands.

Aviation, Vol. 26, No. 2 (Jan. 12, 1929), New York, pp. 101-102.

- The operation of Thompson Aeronautical Corp. lines.

Aviation, Vol. 27, No. 12 (Sept. 21, 1929), New York, pp. 606-609, ill., map.

- The Tour arrives at Detroit.

Aviation, Vol. 27, No. 18 (Nov. 2, 1929), New York, pp. 876-882, ill.

- The Verville "Air Coach." New Warner " Scarab " powered, four place,

semicantilever, cabin monoplane is the first of a line of small craft.

Aviation, Vol. 26, No. 4 (Jan. 26, 1929), New York, pp. 246-248, ill.

- What of the 1930 National Air Tour?

Aviation, Vol. 27, No. 21 (Nov. 23, 1929), New York, pp. 1012-1015, ill.

- With the National Air Tour.

Aviation, Vol. 27, No. 17 (Oct. 26, 1929), New York, pp. 844-848, ill.

Neville, Leslie E. The Fleet biplane (Models 1 and 2).

Aviation, Vol. 26, No. 20 (May 18, 1929), New York, pp. 1686-1690, ill.

- A forecast of the Cleveland show.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 387-392, ill.

- Fourth annual engineering research conference.

Aviation, Vol. 26, No. 21 (May 25, 1929), New York, pp. 1797-1798, ill.

- The General mailplane.

Aviation, Vol. 27, No. 17 (Oct. 26, 1929), New York, pp. 839-843, ill., diagr.

- The Hall shipboard fighter.

Aviation, Vol. 27, No. 22 (Nov. 30, 1929), New York, pp. 1067-1072, ill., diagr.

- Inside the exposition building at Cleveland.

Aviation, Vol. 27, No. 9 (Aug. 31, 1929), New York, pp. 467-468, ill.

- A review of 1928 design development.

Aviation, Vol. 26, No. 1 (Jan. 5, 1929), New York, pp. 26-28, 58-64, ill.

- The safety competition to date.

Aviation, Vol. 27, No. 24 (Dec. 14, 1929), New York, pp. 1146-1151, ill., diagr.

- Technical aspects of the Cleveland exposition.

Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, pp. 502-510, ill.

New, Harry S. Growth of air mail service.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 56, ill.

New Jersey. See Police: Aerial police unit starts operation in New Jersey.

New York. The New York aviation show.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 68, 70.

- New York to be a seaplane port.

Flight, Vol. 21, No. 27 (July 4, 1929), London, p. 556, ill.

- See Bowen, R. Sidney, jr.: The New York show.

New York (State). Report of the special joint legislative committee on aviation to the Senate and Assembly of the State of New York. Transmitted January 30, 1929.

Albany, J. B. Lyon Company, Printers, 1929, pp. 101, ills., diagrs.

New York-Miami. From New York to Miami in a British light aeroplane. Flight, Vol. 21, No. 6 (Feb. 7, 1929), London, pp. 104-105, ill.

New Zealand. Going ahead in New Zealand.

Flight, Vol. 21, No. 14 (Apr. 4, 1929), London, p. 283, ill.

Newcastle. The Newcastle pageant.

Flight, Vol. 21, No. 41 (Oct. 11, 1929), London, pp. 1101-1103, ill.

Newell, H. E. Fire protection for municipal airports.

American City, Vol. 40 (June 1929), New York, pp. 114-116. National Fire Protection Association Proceedings May 13-16, 1929, pp. 116123.

Newell, Joseph Shipley. Static testing of airplanes.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 619-622, ill.

- The testing of landing gears.

Airway Age, Vol. 10, No. 7 (July 1929), New York, pp. 978-982, ill., diagr.

- See Niles, Alfred Salem, and Joseph S. Newell: Airplane structures.

Newhatjser, R. B. Model airplane.

Industrial Arts Magazine, Vol. 18 (June 1929), Milwaukee, pp. 234-235, ill., diagrs.

Newport, A. J. See Robertson, Andrew, and A. J. Newport: Report on the drop of stress at yield in Armco iron.

Netmet, Augustin de, Jr. Topografía aerea.

Ingenieria, Vol. 4, No. 1 (Enero 1930), Mexico, pp. 1-12, advertencia ill.

Nicholas, Russell. An American's impression of European aeronautics.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 74, 260, 261, ill.

Nichols, R. R. Aviation for you and for me.

Ladies Home Journal, Vol. 46 (May 1929), Philadelphia, p. 9.

- Flying for sport ; coast to coast with aviation country clubs.

Ladies Home Journal, Vol. 46 (Sept. 1929), Philadelphia, p. 12, ill.

Nieuport-Delage. Construction du monoplane Nieuport-Delage 52.

L'Aéronautique, lime année, No. 117 (fév. 1929), Paris, pp. 41-43, ill.

- Nieuport-Delage 640 (French). Commercial high-wing monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 92, March 18, 1929, Washington, March 1929, pp. 7, ills.

Nikolaus, Joseph. See-sport-park, seesportanlage—landanlage; die zentralstätte für see- und luftsport, insbesondere zur anwendung des Nikolausverfahrens gegen die Verkehrskrankheiten, wie see- und luftkrankheit, dreh-und höhenschwindel.

Hamburg, Boysen & Maasch. 1928, pp. 78, ills.

NiLES, Alfred Salem, and Joseph S. Newell. Airplane structures.

New York, J. Wiley & Sons, inc. ; London, Chapman & Hall, limited, 1929, pp. xi, 413, diagrs.

Niles, Alfred Salem. Airworthiness ratings needed to aid progress.

Airway Age, Vol. 10, No. 6 (June 1929), New York, pp. 798-800, ill.

- The design of landing gear.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1926-1928, diagr.

- Structural safety of airplanes.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 137-141, ill.

Niles, Emory Hamilton. See Knauth, Arnold Whitman, Henry Greene Hotch-kiss, and Emory Hamilton Niles : United States aviation reports.

Niles, John Jacob. Hedge-hoppers. Stunt flying.

Scribner's Magazine, Vol. 85 (Mar. 1929), New York, pp. 311-315.

:- See Hall, Bert, and John J. Niles: One man's war; the story of the

Lafayette Escadrille.

1928. Air transport operation for the calendar year 1928.

Domestic Air News, No. 53, May 30, 1929, Washington, p. 4. Department of Commerce, Aeronautics branch.

- Air transport operations 1928.

Domestic Air News, No. 54, June 15, 1929, Washington, pp. 5-6. Department of Commerce, Aeronautics branch.

- Aircraft and engine manufactures show great increase during 1928.

Domestic Air News, No. 53, May 30, 1929, Washington, p. 5. Department of Commerce, Aeronautics branch.

- 1928.

Flight, Vol. 21, No. 1 (Jan. 3, 1929), London, pp. 1-2.

- See Besançon, Georges: L'année aéronautique 1928. Rapport présenté

à l'Assemblée générale de PAe. C. F.

1929. Chronology of some of the important aeronautical events.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 76, 78, 80.

- See Commercial aeronautics: The aeronautic! situation to-day.

Nobile, Umberto. See Lundborg, Einar Paul Albert Muni: The Arctic rescue; how Nobile was saved.

- See Lundborg, Einar Paul Albert Muni: När Nobile räddades; mina

upplevelser under den Svenska Spetsbergs expeditionen 1928.

Noble, N. S. Georgia tour succeeds.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, pp. 38-39, 62, ills.

Noise. Decreasing noise in airplane cabins.

Domestic Air News, Serial No. 49, March 30, 1929, Washington, pp. 7-12. Department of Commerce, Aeronautics branch.

j--Making the airplane easier on the ears.

Literary Digest, Vol. 100 (Jan. 5, 1929), New York, p. 57.

Nomenclature. Aeronautic nomenclature.

Domestic Air News, Serial No. 50, April 15, 1929, Washington, p. 7. Department of Commerce, Aeronautics branch.

- See Vanier, Joseph F.: Dictionary of aeronautical terms.

Nomography. See Rodger, Robert: Nomography and design data.

Non-conductors. Metallising non-conductors. The Einstein electro-chemical process.

Flight, Vol. 21, No. 2 (Jan. 10, 1929), London, p. 25.

Norman, Nigel. Air-park planning and construction.

The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1044-1048, ill.

North, John D. The technical development of the aeroplane.

Journ. Roy. Aer. Soc. Vol. 33, No. 217 (Jan. 1929), London, pp. 1-37, ill., diagrs., tabls.

North Pole. See Maddalena, Umberto: I miei voli sulle regioni polari.

Northwest Airways. The Northwest Airways.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 19-21.

Noyes, Richard W. See Knight, Montgomery, and Richard W. Noyes: Wind tunnel pressure distribution tests on a series of biplane wing models. Part I. Effects of changes in stagger and gap.

- See Knight, Montgomery, and Richard W. Noyes: Wind tunnel pressure

distribution tests on a series of biplane wing models. Part II. Effects of changes in decalage, dihedral, sweepback, and overhang.

Nulsen, J. C. We taught our employees to fly.

Factory and Industrial Management, Vol. 77 (May 1929), Chicago, pp. 980981, ill.

Nutt, A. E. Woodward. The change in airscrew characteristics with height.

Aeronautics. Techn. Rep. Aer Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 349-358, diagrs. (R. & M. No. 1178.)

- The inclusion of partial glides in routine performance tests.

Aer. Res. Comm., Rep. Mem., No. 1180 (Ae. 344), May 1928, London, 1929, pp. 3, diagrs.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 409-411, diagrs.

o

Oakland. See Carver, Peggy : A university of the air. Boeing school of aeronautics will formally open at Oakland Airport, September 15.

- See Hegardt, G. B. : Oakland municipal airport.

Ober, Shatswell. Estimation of the characteristics of modified airfoils. Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, p. 830.

- Some experiments on autorotation of an airfoil.

National Advisory Committee for Aeronautics, Technical Notes No. 319, Sept. 27, 1929, Washington, September 1929, pp. 10, ill., diagrs.

- Some studies on the aerodynamic effect of the gap between airplane

wings and fuselages.

National Advisory Committee for Aeronautics, Technical Notes No. 327, Nov. 12, 1929, Washington, November 1929, pp. 7, ills., diagrs.

Oberth, H. Wege zur Raumschiffahrt.

München und Berlin, R. Oldenbourg, 1929, pp. 442, ill.

Odier, A. L'ingénieur automatique.

L'Aéronautique, lime année, No. 118 (mars 1929), Paris, pp. 71-73.

Ofenstein, C. L. Control system care and maintenance.

Aviation, Vol. 26, No. 6 (Feb. 9, 1929), New York, p. 399, ill.

Ofstie, Ralph A. The flat spin.

Aviation, Vol. 27, No. 25 (Dec. 21, 1929), New York, pp. 1203-1206, ill.

Ogawa, Taitaro, and Sigetake Suzuki. A new index to control cable endurance.

Report of the Aeronautical Research Institute, No. 49 (Vol. 4, 8), (S ;pt. 1929), Tokyo, pp. 243-258, ills., diagrs., tabls.

Ogden, H. R. Flying field and airway lighting.

Journ. Amer. Inst. Electrical Engineers, Vol. 48, No. 7 (July 1929), New York, pp. 555-559.

Oger, Marcel. Les projets de l'aviation marchande française pour l'année 1929.

Aëronautica, Vol. 3, No. 4 (April 1929), Amsterdam, Holland, pp. 84-87, ill.

- Le statut de l'aviation marchande française.

Aëronautica, Vol. 3, No. 2 (Feb. 1929), Amsterdam, Holland, pp. 40-42, ill.

Oil. See Bostaph, F. D . : How oil for aircraft is made.

-■ Relationship of laboratory tests and cold weather motor operation of

various oils—Part II. (Material branch report).

Air Corps Information Circular, Vol. 7, No. 640 (Oct. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 10, ill., diagrs. Air Corps Technical Report No. 640.

Oil sprays. See Rothrock, A. M., and E. G. Beardsley: Some effects of air flow on the penetration and distribution of oil sprays.

Oiseau-Canari. See Aimé, Emmanuel : L' " Oiseau-Canari " a franchi l'Atlantique.

Olson, Alma Luise. See Lundborg, Einar Paul Albert Muni: The Arctic rescue; how Nobile was saved.

Olympia. The aero show at Olympia.

The Aeroplane, Vol. 37, suppl. (July 12, 1929), London, pp. 1-144, ill., map, diagr.

- British aero engines at Olympia.

Flight, Vol. 21, No. 29 (July 18, 1929), London, pp. 699-722, ill.

Olympia. British aircraft at Olympia.

Flight, Vol. 21, No. 28 (July 11, 1929), London, pp. 579-650, ill.

- Foreign aero engines at Olympia'.

Flight, Vol. 21, No. 30 (July 25, 1929), London, pp. 761-778, ill.

- Miscellaneous and foreign exhibits at Olympia.

Flight, Vol. 21, No. 32 (Aug. 8, 1929), London, pp. 859-862, ill.

- Olympia.

Flight, Vol. 21, No. 29 (July 18, 1929), London, pp. 695-698, ill.

- On the aero show.

The Aeroplane, Vol. 37, No. 4 (July 24, 1929), London, pp. 189-200, ill.

- See Christian, M.: Neue Flugmotoren auf der Olympia-Schau 1929.

- See London.

- See Pollard, H. J.: Metal construction at Olympia.

- See Royal Aeronautical Society: The Society's exhibit at the International Aero Exhibition, Olympia, July 16th-27th, 1929.

- See Taylor, C. Fayette: A study of the engines exhibited at the Olympia

aero show.

Ono, M. Flugzeug mit Fleugelsteuerung.

Zeitschr. Flugt, Motorluftsch., 20 Jahrg., Nr. 9 (14, Mai 1929), München, pp. 224-227, ill.

Opel. Aeronautics.

Mech. Eng., Vol. 51, No. 11 (Nov. 1929), New York, pp. 864-865.

- The Opel rocket plane.

Aviation, Vol. 27, No. 19 (Nov. 9, 1929), New York, pp. 931, ill.

Oecutt, B. S. Flying as Wall Street sees it.

U. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. C, pp. 27-33, ill.

Ordinance. Suggested city or county aeronautics ordinance and uniform rules for airports. October 1, 1929.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 20, United States Government Printing Office, Washington, 1929, pp. 10.

- Suggested uniform ordinances and field rules.

Domestic Air News, Serial No. 48, March 15, 1929, Washington, pp. 4-8. Department of Commerce, Aeronautics branch.

- See Airports: Suggested city or county aeronautics ordinance and uniform field rules for airports.

Orientation. See Simeon, Giuseppe.: Meridiana solare per l'orientamento in volo.

Oriole. Oriole sport plane.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 126, ill.

Orlebar, A. H. The Schneider trophy.

Flight, Vol. 21, No. 47 (Nov. 22, 1929), London, p. 1235.

Orlovtus, Heinz. Grossluftwege der nahen Zukunst.

Aeronautica, Vol. 3, No. 1 (Jan. 1929), Amsterdam, Holland, pp. 16-22, map.

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Aeronautica, Vol. 3, No. 4 (April 1929), Amsterdam, Holland, pp. 81-84, port. 9573—30-12

Osborn, Earl D. Accidents and their causes.

Aviation, Vol. 26, No. 7 (Feb. 16, 1929), New York, pp. 472-476, diagrs.

- An American private pilot looks at the London Aero Show.

Aviation, Vol. 27, No. 6 (Aug. 10, 1929), New York, pp. 292-297, ill.

- Aviation, now a McGraw-Hill publication, enters an era of greater service.

Aviation, Vol. 26, No. 9 (March 2, 1929), New York, p. 628.

- The cross license agreement as it stands to-day.

Aviation, Vol. 26, No. 23 (June 8, 1929), New York, pp. 1982-1983, ill.

- England's tenth annual Royal Air Force display.

Aviation, Vol. 27, No. 5 (Aug. 3, 1929), New York, pp. 266-268, ill.

- How the autogiro flies; with comment by H. F. Pitcairn.

Scient. Amer., Vol. 141 (Oct. 1929), New York, pp. 290-292, 336, ill.

- The industry's progress during 1928.

Aviation, Vol. 26, No. 1 (Jan. 5, 1929), New York, pp. 24-25, 64, ill.

- The Pitcairn autogiro.

Aviation, Vol. 26, No. 25 (June 22, 1929), New York, pp. 2187-2189, ill.

- Private pilots and their problems.

Aviation, Vol. 27, No. 16 (Oct. 19, 1929), New York, pp. 778-780, ill.

O'Shea, P. F. See Henderson, P., and P. F. O'Shea: Business at airplane speed.

Over, Wing. Conducting an aerial sightseeing business over the nation's capital.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 64-65, 282, 284, ill.

Overhang. See Knight, Montgomery, and Richard W. Noyes: Wind tunnel pressure distribution tests on a series of biplane wing models. Part II. Effects of changes in decalage, dihedral, sweepback and overhang.

Ovington, Earle. Flaming gas beacons?

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, p. 108.

Owen, John T. Jorr process castor oil lubricant.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, p. 106.

Ower, E. Recent progress in aerodynamics.

Discovery, Vol. 10, No. 114 (June 1929), London, pp. 183-187, ill.

- See Bryant, L. W., E. Ower, A. S. Halliday, and V. M. Falkner: On the

convection of heat from the surface of an aerofoil in a wind current.

Oxygen. See Binnie, A. M.: The influence of oxygen on corrosion fatigue.

- See Kaiser, Wilhelm: Die Sauerstoffdrosselung in der Atemluft bei

Atmosphärendruck (Stickstoffnarkose).

P. C. II campo decisive délia vittoria?

Riv. Aeron., Anno 5, N. 3 (Marzo 1929), Roma, pp. 481-498.

P., C. W. Stability of seaplanes afloat.

Aircraft Engineer suppl. Flight, Vol. 21, No. 22 (May 30, 1929), London, pp. 446d-446e.

P. L. Banc d'essai des moteurs refroidis par l'air Farman.

L'Aéronautique (L'Aérotechnique, 7e année, No. 75), lime année, No. 118 (mars 1929), Paris, pp. 86-88, ill.

Pacific Ocean. See Kingsford-Smith, Charles E., and C. T. P. Uhm : The flight of the Southern Cross.

- See Transoceanic: Transoceanic ventures.

Packer, Alfred Herbert. Demagnetization tests. A discussion of the N. A. T. experiments to determine the cause of magnetism loss resulting from booster operation.

Aviation, Vol. 26, No. 2 (Jan. 12, 1929), New York, pp. 106-107, ill.

- Electrical trouble shooting on the motor car and airplane.

Chicago, A. H. Packer, 1929, pp. xii, 531, ills., diagrs.

Paddock, P. D. Flying electric billboards and talking airplanes introduce novelty in outdoor advertising.

Pop. Mech., Vol. 51 (May 1929), Chicago, pp. 722-727, ill.

Page, Victor Wilfred. A B C of aviation. Elementary ed. A simplified exposition of all types of aircraft with condensed instructions on their basic principles of construction and operation. This instruction manual is intended as an elementary introduction to the study of aviation for nontechnical people.

New York, The Norman W. Henly Publishing Company, 1928, pp. xvi, 143, ills., diagrs.

- Modern aviation engines; design—construction—operation and repair, a

complete, practical treatise outlining clearly the elements of internal combustion engineering, with special reference to the design, construction, operation and repair of airplane power plants; also the auxiliary engine systems, such as lubrication, carburetion, ignition and cooling; it included complete instructions for engine repairing and systematic location of troubles, tool equipment and use of tools, also outlines the latest mechanical processes. Describes many typical American and European engines and their installation. Contains valuable instructions for all aviation students, pilots, mechanicians, flying field engineering officers and all interested in the design, construction and upkeep of airplane powerplants.

New York, The Norman W. Henley Publishing Company, 1929, 2 vols., pp. 1908, ills., diagrs.

Pahl, H. Effect of oxygen on the ignition of liquid fuels.

National Advisory Committee for Aeronautics, Technical Memorandums No. 497, Jan. 24, 1929, Washington, Jan. 1929, pp. 13, ills., diagrs. From Zeitschrift des Vereines deutscher Ingenieure, June 16, 1928.

Painter, K. M. Help from the skies.

Pop. Mech., Vol. 52 (Nov. 1929), Chicago, pp. 752-756, ill.

- Planes and fire fighters.

Pop. Mech., Vol. 52 (Oct. 1929), Chicago, pp. 529-531, ill.

Panama Canal. See Commercial aeronautics : Daylight flight to Panama.

- See Haynes, Frank: Airlines in the Canal Zone.

- See Laws and regulations: Foreign aircraft and the Panama Canal Zone.

Pan America. Map of the routes of the Pan American airways. Scient. Amer., Vol. 140 (Jan. 1929), New York, p. 71.

- See Wines, James P.: Operation of the Pan American airways system.

Parachute. Determination of the rates of descent of a falling man and of a parachute test weight. (Equipment branch report.)

Air Corps Information Circular, Vol. 7, No. 628 (Nov. 24, 1928), Washington, United States Government Printing Office, 1929, pp. 7, diagrs. Air Corps Technical Report No. 2916.

-- How fast can a man fall?

Pop. Mech., Vol. 51 (Jan. 1929), Chicago, pp. 82-88, ill.

Parachute. How it feels to fall 3,000 feet.

Pop. Mech., Vol. 52 (July 1929), Chicago, pp. 114-119, ill.

- New parachute regulations planned.

Air Commerce Bulletin, Vol. 1, No. 2 (Sept. 2, 1929), Washington, pp. 13-14. Department of Commerce, Aeronautics branch.

- The parachute and its development.

Flight, Vol. 21, No. 23 (June 6, 1929), London, p. 469, ill..

- Parachuting to the dotted line.

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 60, 62. ill.

- Studying parachute jumps.

Scient. Amer., Vol. 140 (Mar. 1929), New York, p. 260, diagr.

- See Bowen, R. Sidney, jr. : The business of selling and servicing parachutes.

- See Cleary, Charles J. : Parachute fabrics.

- See Dollfus, Charles: Nouveaux parachutes français.

- See Fiore, Amedeo : Il paracadute italiano. I suoi successivi perfezionamenti.

- See Glassman, Don: The black sheep of aviation. Our aerial life preservers are deserving of a geneological record—and here it is.

- See Jarrier, M. : Vieillissement en service des tissus de soie destinés a la

confection des parachutes.

- See Klemin, Alexander: Learning to use our wings. Studying parachute jumps.

- See Miller, H. B. : Parachutes.

- See Robur : The " Robur " parachute.

- See Russell : Russell " Lobe " production parachute.

Paraffin. See Rackwitz, Erich, Erich K. O. Schmidt, und Otto Kraemer : Uber den Schutz von Sperrholz gegen Feuchtigkeitsaufnahme durch Parafhn-vorbehandlung.

Paramount. The " Cabinaire " biplane.

Aviation. Vol. 26, No. 11 (March 16, 1929), New York, pp. 800-801, ill.

Paris. See Lesage, A. : La XI Exposition Internationale de l'Aéronautique (Paris, 29 juin-july. 1928.) Avions et hydravious français—Moteurs d'aviation.

Paris-Tzitzikar. L'avion du nouveau record de distance.

L'Aéronautique, lime année, No. 126 (nov. 1929), Paris, pp. 358-360, ill.

Parker, Leo T. Legal responsibilities of carriers of goods and baggage by air. Aviation, Vol. 27, No. 19 (Nov. 9, 1929), New York, pp. 938-940, ill.

Parker, Willis. Denver's new municipal airport.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1781-1783, ill.

- The financing of aircraft sales.

Aviation, Vol. 27, No. 4 (July 27, 1929), New York, pp. 227-228.

--It's time to stop strutting and sell airplanes.

Airway Age, Vol. 10, No. 8 (Aug. 1929), New York, pp. 1238-1239, ill.

- Keeping the dope room clean.

Aviation, Vol. 26, No. 17 (Apr. 27, 1929), New York, pp. 1430-1431, diagr.

Parker, Willis. Motor truck advertising versus airplane advertising.

Aviation, Vol. 26, No. 20 (May 18, 1929), New York, pp. 1698-1699, ill.

- The personal problems in aircraft building.

Aviation, Vol. 26, No. 6 (Feb. 9, 1929), New York, p. 405, ill.

- The problem of rubbish in the airplane factory.

Aviation, Vol. 26, No. 22 (June 1, 1929), New York, p. 1876.

- Psychological points in merchandizing airplanes.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, p. 76.

- Showmanship in scenic air tours.

Aviation, Vol. 27, No. 19 (Nov. 9, 1929), New York, pp. 936-937, map.

- Student loans to encourage flying.

U. S. Air Services, Vol. 14, No. 11 (Nov. 1929), Washington, D. C, pp. 46-47.

- System and order in the stock room.

Aviation, Vol. 26, No. 19 (May 11, 1929), New York, pp. 1614-1615, ill.

Parkes, Oscar. Japan's new navy. Quietly, and without publicity, a great battle fleet is being constructed on the opposite shores of the Pacific. Aircraft carriers "Akagi" and "Kaga."

Scient. Amer., Vol. 141, No. 5 (Nov. 1929), New York, pp. 396-399, ill.

Parkinson, H. Detail stressing.

Aircraft Engineer suppl. Flight, Vol. 21, Nos. 5, 22 (Jan. 31, May 30, 1929), London, pp. 82e-82f, 446e-446g, diagr.

Parks, Oliver L. The sphere of the air college.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 80, ill.

Parnall. The Parnall " Pipit."

Flight, Vol. 21, No. 24 (June 13, 1929), London, pp. 477-480, ill., diagr.

- The Parnall "Pipit" (British). A single-seat ship's fighter.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 99, Aug. 9, 1929, Washington, August 1929, pp. 4, ills.

Partridge. See Boulton and Paul: The Boulton and Paul "Partridge" (British). All-metal single-seat fighter.

Passage. See Jouglard, P.: Notes techniques d'un passager.

Passengers. First airplane passenger.

Domestic Air News, Serial No. 51, April 30, 1929, Washington, p. 4. Department of Commerce, Aeronautics branch.

- See Klemin, Alexander: Learning to use our wings. 135 passengers.

- See Monteith, Charles N.: Aircraft for passenger transport.

- See Poole, Frederick Arthur: Records of an airplane passenger in 1928

and 1929.

Patjlin. Paulin system altimeter.

Aviation, Vol. 26, No. 5 (Feb. 2, 1929), New York, p. 336, ill.

- See Clahoun, Guy K.: Altimeters and the Paulin system level flight

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- See Mclleynolds, Charles F.: Adaptation of the Paulin system to

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Pearce, Gale. Cabin airplane insulation.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 116.

Peace, John D. Dewitching the compass.

U. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, D. C, pp. 49-52, ill.

Peck, Annie S. Wings of South America. Aerial transportation between the continents of the Western Hemisphere is increasing by leaps and bounds. Scient. Amer., Vol. 141, No. 1 (July 1929), New York, pp. 46-49, ill.

Penaud. See Merrill, Albert: The Penaud versus the Canard types.

Penn, R. J. Aero engine problems in flight with particular reference to carburation.

Journ. Roy. Aer. Soc., Vol. 33, No. 221 (May 1929), London, pp. 325-356, ills., diagrs.

Penn, R. J., and W. C. Cooper. The use of the flowmeter in. obtaining fuel economy.

Aer. Res. Comm., Rep. Mem., No. 1245 (E. 31), January 1929, London, 1929, pp. 18-21.

Peppler, W. Die Windverhältnisse der freien Atmosphäre, besonders der Stratosphäre über mittleren Breiten Europas.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 12. Heft (28. Juni 1929), München, p. 302.

Perelmann, J. J. Weltraumfahrten.

Moskau, 1929, VI. Auflage.

Performance. See Lesley, Everett Parker, and E. G. Reid: A new method for the prediction of airplane performance.

Perkins, Leroy C. The unexplored aircraft market.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, p. 60.

Perkins, N. S. Lumber built airplane hangars.

Aviation, Vol. 27, No. 3 (July 20, 1929), New York, pp. 175-177, ill.

Perring, W. G. A. The theoretical relationships for an aerofoil with a multiply hinged flap system.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 243-256, diagrs., tabls. i

-■ Wind flutter experiments upon a model of a single seater biplane.

Aer. Res. Comm., Rep. Mem., No. 1197 (Ae. 358), November 1928, London, 1929, p. 20, ills., tabls.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 451-470, ills., tabls.

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Aer. Res. Comm., Rep. Mem., No. 1243 (Ae. 398), February 1929, London, 1929, pp. 4, ill., diagrs., tabls.

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tip speed airscrews. Some experiments upon an airscrew of conventional blade section, aerofoil R. & M. 322, No. 3, at high speeds.

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Perry, Armstrong. Radio guides the airway traveler. Radio beacons provide increased safety in fog and storm.

Scient. Amer., Vol. 140, No. 3 (March 1929), New York, pp. 238-293, ill.

Perucca, Alceste. Sul limite di convenienza della riparazione dei materiali aeronautici.

Riv. Aeron., Anno 5, N. 12 (Die. 1929), Roma, pp. 428-432, ill.

Petersohn, E. See Betz, A., and E. Petersohn: Contribution to the aileron theory.

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Pontoons. Pontoons approved for use on licensed aircraft.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, p. 25. Department of Commerce, Aeronautics branch.

Poole, Frederick Arthur, Records of an airplane passenger in 1928 and 1929. Chicago, Privately printed, 1929, pp. 31, ills., map.

Porger, V. See Poster, Edmund, und V. Porger: Grundlagen der Fluglehre.

Porter, Charles Talbot. Factors in the design of commercial airplanes. Mech. Eng., Vol. 51, No. 12 (Dec. 1929), New York, pp. 912-914.

Porter, L. C. Aviation lighting.

Journ. Aer. Inst. Electrical Engineers, Vol. 48, No. 7 (July 1929), New York, p. 560.

Porter, M. De M. Flying from ocean to ocean.

Nation, Vol. 129 (July 10, 1929), New York, pp. 36-37.

Porto Rico. See Fassig, Oliver L.: On the frequency of hurricanes in the vicinity of Porto Rico.

Ports of entry. See Airports: U. S. airports of entry.

Post, George B. Water handling of seaplanes and flying boats.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 51-53, 258, ill.

Potez. The " Potez 33 " military airplane (French).

National Advisory Committee for Aeronautics, Aircraft Circular No. 96, June 29, 1929, Washington, June 1929, pp. 4, ills.

Powell, Hebbert F. The 1929 National Air Races get under way.

Aviation, Vol. 27, No. 9 (Aug. 31, 1929), New York, pp. 464-466, ill.

Power. See Gosslau, F.: Mathematical and experimental investigation of heat control and power increase in air-cooled aircraft engines.

-■ See Seewald, Friedrich: Über die Messung der Kräfte an Luftfahrzeugen.

Pranbtl, L. See Tietjens, O.: Hydro- und Aeromechanik nach Vorlesungen von L. Prandtl Band I: Gleichgewicht und reibungslose Bewegung.

Prandtl theory. See Driggs, I. H.: The modern aero-dynamic theory in design.

Prepositi, Clements. Gli albori della dottrina aeronautica e le prime convenzioni di guerra aerea.

Riv. Aeron., Anno 5, N. 8 (Agosto 1929), Roma, pp. 296-302.

Pressure distribution. See Lock, C. N. H., and F. G. Johansen: Pressure plotting a streamline body with tractor airscrew running.

Pressure gradient. See Glaubert, H.: The effect of the static pressure gradient on the drag of a body tested in a wind tunnel.

- See Glauert, H.: A theoretical estimate of the pressure gradient in a wind

tunnel.

Pressure! of air. See Zahm, Albert Francis, and F. A. Louden: Tables for pressure of air on coming to rest from various speeds.

Preston, G. D. See Gayler, Marie L. V., and G. D. Preston: The age hardening of some aluminium alloys.

Price, C. B. Hangar for the home.

Houe and Garden, Vol. 56 (Oct. 1929), New York, pp. 92-93, ill.

Pritchard, J. Laurence. The book of the aeroplane.

London, New York and Toronto, Longmans, Green and Co., Ltd., 1929, pp. 267, ill.

Private lights. See Klemin, Alexander: Learning to use our wings. * * * Certification of private lights.

Production. Aircraft production calendar years 1925-1928.

Domestic Air News, No. 53, May 30, 1929, Washington, p. 6. Department of Commerce, Aeronautics branch.

- Airplane production and export 1909-1928.

Domestic Air News, Serial No. 50, April 15, 1929, Washington, p. 4. Department of Commerce, Aeronautics branch.

- Airplane production, 1909-1928.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, p. 6. Department of Commerce, Aeronautics branch.

--Progressive assembly of airplane resembles automotive production.

Automotive Ind., Vol. 60, No. 21 (May 25, 1929), New York, pp. 800-802, ill.

- See Finney, B.: Mass production methods used in airplane plant.

- See Nelson, William: Cardinal factors in aircraft production.

- See Renfro, Robert D.: Modern aircraft production methods.

■- See Sigrist, F.: Some aspects of the production problem in aircraft.

PiiOPELLEiis. Adjustable propellers for aircraft

Science n. s., Vol. 70 (Aug. 30, 1929), Garrison, N. Y., sup. 12.

- Approved air screws.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, pp. 24-25. Department of Commerce, Aeronautics branch.

- How Micarta propellers are made.

Aero Digest, Vol. 14, No. 1 (Jan. 1929), New York, p. 72.

- Les premières hélices aériennes.

Le Genie Civil, T. 93, No. 4 (28 juli. 1928), Paris, p. 98.

- See Alexandrow, W. : Die Joukowskysche Wirbeltheorie des Propellers

und ihre Verwendung zur Berechnung von Luftschrauben.

- See Bradfield, F. B. : Preliminary tests on the effect on the lift of a wing

of the position of the airscrews relative to it.

- See Capon, R. S. : Part I.—A method of calculating suitable airscrew

characteristics to meet given conditions. The resulting airscrew performance. Part II.—A comparison of the observed change of performance consequent on a change of airscrew and the change predicted by the methods of Part I.

- See Douglas, G. P., and W. G. A. Perring: Wind tunnel tests with high

tip speed airscrews. Some experiments upon an airscrew of conventional blade section, aerofoil R. & M. 322, No. 3, at high speeds.

- See Douglas, G. P., and W. G. A. Perring: Wind tunnel tests with high

tip speed airscrews. The characteristics of a conventional airscrew section, 0.082c thick, and of R. A. F. 27 and R. A. F. 28.

- See Flachsbart, O, und G. Kröber: Experimentelle Untersuchungen an

schäg angeblasenen Schraubenpropellern.

- See Glauert, H. : Die Grundlagen der Tragflügel—und Luftsehrauden-

theorie.

- See Goldstein, S. : On vortex theory of screw propeller.

- See Havill, C. H. : Aircraft propellers.

- See Hodgson, John L. : Tests on model propellers.

- See Jennings, W. G. : Full scale determination of the effect of high tip

speeds on the performance of an airscrew.

- See Jones, E. T.: The distribution of pressure over a section of an airscrew blade in flight, and the variation of lift coefficient with the speed of the section.

- See Knight, R. L. : Making Micarta airplane propellers.

- See Kulebäkin, V. S. : Lichtreflexion von rotierendon Propellern.

- See Légiise, Pierre : L'hélice métallique Ratier à pas vaniable en vol.

--See Lesley, Everett Parker, and Elliott G. Reid : A new method for the

prediction of airplane performance.

- See Lesley, Everett Parker, and Elliott G. Reid: Tests of five metal

model propellers with various pitch distributions in a free wind stream and in combination with a model VE-7 fuselage.

- See Lock, C. N. H. : Airscrew body interference.

Propellers. See Lock, C. N. H.: The application of the theoretical velocity field round a spheroid to calculate the performance of an airscrew near the nose of a streamline body.

- See Lock, C. N. H.: The effect of body interference on the efficiency of an

airscrew.

- See Lock, C. N. H.: Photographs of streamers illustrating the flow around

an airscrew in the "Vortex Ring State."

- See Lynam, E.: Notes on the flutter of airscrew blades.

- See Münk, Max Michael: The production of lift by propeller blades.

- See Nutt, A. E. Woodward: The change in airscrew characteristics with

height.

- See Story, Chase S.: Notes on protection of wooden propellers.

- See Svehia, G.: The duralumin propeller.

- See Townsend, H. C. H., W. S. Walker, and J. H. Warsap: Experiments

with the family of airscrews in free air at zero advance.

- See Troller, T.: Die Konstruction der propellerpolaren.

- See Troller, T.: Zur Wirbeltheorie der Luftschrauben.

- See Warner, Edward P.: The A. S. E. propeller and power plant sessions.

- See Weick, Fred E.: Full scale tests of wood propellers on a VE-7 airplane in the propeller research tunnel.

- See Weick, Fred E.: Full-scale wind-tunnel tests of a series of metal

propellers on a VE-7 airplane.

Protection. See Public: How America protects the flying public.

Public How America protects the flying public.

Air Commerce Bulletin, Vol. 1, No. 4 (Aug. 15, 1929), Washington, pp. 1-5. Department of Commerce, Aeronautics branch.

Publications. Aeronautical publications.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 6 (Formerly information Bulletin No. 6), Washington, January 1, 1929, pp. 5.

- Aeronautic publications. December 1, 1929.

Department of Commerce, Aeronautics branch, Aeronautics Bulletin No. 6, United States Government Printing Office, 1929, pp. 10.

Puebla. See Ignacio Zaragoza: El puerto aero " Ignacio Zaragosa" en la ciudad de Puebla, Mexico.

Pusher type. What about the pusher type?

The Aeroplane, Vol. 36, No. 21 (May 22, 1929), London, p. 850.

Puster, Louis. Services rendered by S. A. S. (Southern Automotive Services, Inc.).

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 98-99, ill.

Putnam, L. L. Aviation accounting.

Airway Age, Vol. 10, Nos. 7-8 (July-Aug. 1929), New York, pp. 987-989, 1234-1236, ill.

Putnam, Russell L. Putting long pants on our $100,000,000 infant.

Magazine of Business, Vol. 55 (Jan. 1929), Chicago, p. 43, ill.

- The selling of airplanes to business houses.

Airway Age, Vol. 10, No. 10 (Oct. 1929), New York, pp. 1644-1648, ill.

Putnam, Russell L. When can a business use the airplane?

Magazine of Business, Vol. 55 (June 1929), Chicago, pp. 653-654, ill.

- When does it pay to fly for business?

Magazine of Business, Vol. 56 (Aug. 1929), Chicago, pp. 151-152, ill.

Pychon & Company. The aviation industry. New York, 1929, pp. 80, ill., map.

Pyle, Ernest T. David S. Ingalls. The new Assistant Secretary of the Navy for Aeronautics.

U. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. C, pp. 42-44, ill.

Q

Question Mark. Flight of the ?

Pop. Mech., Vol. 51 (Mar. 1929), Chicago, pp. 352-356, ill., map.

- The flight of the " Question Mark."

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, pp. 17-18, ill.

- Personnel of Army Air Corps endurance flight.

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, pp. 24-27, ill.

- Week in the sky; monoplane Question Mark.

Literary Digest, Vol. 100 (Jan. 19, 1929), New York, pp. 5-6, ill.

- What a plane can do; the Question Mark.

Outlook, Vol. 151 (Jan. 23, 1929), New York, pp. 137.

- See McDaneld, D. E.: N. A. A's. part in the " Question Mark " flight.

- See Renfro, Robert B.: The Question Mark's flight.

R

R. A. F. 15. See Diehl, Walter S.: Joint report on standardization tests on N. P. L. R. A. F. 15 airfoil model.

R 100. His Majesty's airship R 100.

Flight, Vol. 21, No. 49, 51 (Dec. 6, 20, 1929), London, pp. 1275-1280, 13231324, ill.

- The launching of R 100.

The Aeroplane, Vol. 37, No. 25 (Dec. 18, 1929), London, pp. 1382, 1384, ill.

- See Flanders, L. Howard: The press visit to R. 100.

R. 101. Das britische Luftschiff " R. 101."

Maschinen-Konstrukteur, Bd. 62, Nr. 16 (15. Aug. 1929), Berlin, pp. 375-376, ill.

- The British State airship R. 101.

Aviation, Vol. 27, No. 17 (Oct. 26, 1929), New York, pp. 850-853, ill.

-- Electric cooking equipment for R. 101.

Flight, Vol. 21, No. 28 (July 11, 1929), London, p. 667, ill.

- The launch of R. 101.

The Aeroplane, Vol. 37, No. 16 (Oct. 16, 1929), London, pp. 951-954, ill. Flight, Vol. 21, No. 42 (Oct. 18, 1929), London, pp. 1110-1112, ill.

- The new British airship, R-101.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 114, 116, 118, ill.

- R. 101.

Flight, Vol. 21, No. 41 (Oct. 11, 1929), London, pp. 1085-1095, ill., diagr.

R. 101. See Carter, B. C.: The machinery installation of airship R. 101.

- See Cave-Browne-Cave, T. R.: The machinery installation of airship

R. 101.

- See Flanders, L. Howard: The visit to R. 101.

- See Hardecker, J. F.: Stainless steel members in R. 101.

- See Jones, R., and A. H. Bell: The distribution of pressure over the hull

and fins of a model of the rigid airship R. 101, and a determination of the hinge moments on the control surfaces.

- See Jones, R., and A. H. Bell: Experiments on a model of the airship

R. 101.

- See Richmond, V. C.: R. 101.

- See Southwell, R. V.: 1R 101.'

Rabezzana, Hector. Spark plug problems.

Aviation, Vol. 26, No. 11 (Mar. 16, 1929), New York, pp. 798-799, diagr.

Rackwitz, Erich, und Erich K. O. Schmidt. Prüfung der Korrosionsbeständigkeit von Alcladblechen.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, B. V. Berlin-Adlershof, München, [19291, pp. 294-304, ills., diagrs., tabls.

- Prüfverfahren zur Beurteilung der Korrosionsbeständkeit von Metallen

gegen Witterung und Seewasser.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 245-250, ills.

Zetischr. Plugt. Motorluftsch, 20. Jahrg., 6. Heft (28. März 1929), München, pp. 138-141, ills., diagrs.

Rackwitz, Erich, Erich K. O. Schmidt, und Otto Kraemer. Uber den Schutz von Sperrholz gegen Feuchtigkeitsaufnahme durch Parafiinvorbehandlung. Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [19291, pp. 251-256, ill., diagrs., tabls. Teil II gemeinsam mit Otto Kraemer.

Radford, A. W. Three months at eleven thousand feet above Alaska. A human-interest story of the second Naval Alaskan Aerial Survey Expedition, and also about things leading up to and after the remarkable accomplishment. Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 19-30, ill.

Radiators. See Weick, Fred E.: Full scale investigation of the drag of a wing radiator.

Radio'. Aeronautic radio research, Bureau of Standards.

Air Commerce Bulletin, Vol. 1, no. 2 (July 15, 1929), Washington, pp. 19-20. Department of Commerce, Aeronautics branch.

- Determination of altitude by radio.

Airway Age, Vol. 10, No. 1 (Jan. 1929), New York, pp. 55-56, ill.

- Federal radio commission designates aviation frequencies.

Air Commerce Bulletin, Vol. 1, No. 8 (Oct. 15, 1929), Washington, pp. 27-29. Department of Commerce, Aeronautics branch.

- Improved radio for planes adds to safety.

Pop. Mech., Vol. 51 (June 1929), Chicago, p. 891, ill.

- Private radio stations for airway operators.

Domestic Air News, Serial No. 45, Jan. 31, 1929, Washington, pp. 8-12. Department of Commerce, Aeronautics branch.

- Radio and the Nation's airways.

Air Commerce Bulletin, Vol. 1, No. 10 (Nov. 15, 1929), Washington, pp. 1-4. Department of Commerce, Aeronautics branch.

Radio. Recent publications on aircraft radio developments.

Domestic Air News, Serial No. 45, Jan. 31, 1929, Washington, pp. 15-16. Department of Commerce, Aeronautics branch.

- See Beacons: Radio range beacons for airways.

- See Bingham, Hiram: Ground to plane radio photography.

- See Bureau of Standards: Aeronautic radio research.

- See Bureau of Standards: Aircraft radio development.

- See Carr, C. B.: Air route radio services in Great Britain.

-- See Codel, Martin: Airway radio progress.

- See Codel, Martin: Radio flying. Government develops plans to meet

requirements of aviation.

- See Crary, Harold: Aerial radiophone in use.

- See Curtis, Frank L.: Plane and ground communication by radio.

- See Dellinger, J. H., and H. Diamond: Radio development applied to

aircraft.

- See Dellinger, J. H.: Uses of radio as an aid to air navigation.

- See Driscoll, Marjorie: Flying by radio.

- See Fassbender, Heinrich, und Georg Kurlbaum: Abhängigkeit der

Reichweite sehr kurzer Wellen von der Höhe des Senders über der Erde.

-- See Gloeckner, Heinrich: Der Bordpeilempfänger im Flugzeug.

- See Graf Zeppelin: Kurzwellenversuche bei der Amerikafahrt des Luftschiffes " Graf Zeppelin."

- See Hyland, Lawrence A.: Ignition shielding for radio operation.

- See Krüger, Kurt, und Hans Plendl: Uber die Ausbreitung der kurzen

Wellen bei kleiner Leistung im 1000-kilometer-Bereich.

- See Lane, D. R.: Radio on the Byrd and Wilkins planes.

- See Manisco, Giovanni: I radiogoniometri ed i radiofari nella navigazione italiana.

- See Perry, Armstrong: Radio guides the airway traveler. Radio beacons provide increased safety in fog and storm.

- See Smith, J. E.: Defining the range of airplane radio transmitting sets.

- See Smith, J. E.: Evolution of aircraft and marine radio beacons.

- See Stowe, A. W.: Promoting aviation by radio.

- See Wireless.

Raethjen, P. Bemerkungen zur Trudelbewegung und zur kinematographischen Flugvermessung.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 16. 18. Heft (28. Aug. 28, Sept. 1929), München, pp. 413-423, 482, ill.

Raffaelli, Italo. Aeroplane biposto da combattimento.

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 509-510, ill.

- Motori a due tempi per aviazione.

Riv. Aeron., Anno 5, N. 5 (Mag. 1929), Roma, pp. 256-260.

Raileoads. See Atterbury, W. W.: The railroads enter aviation.

Raimondi, E. Un nuovo fenomeno di aerodinamica.

Atti della Reale Accademia Nazionale dei Lincei, Anno 326, 1929 (VII), Série Sesta, Rendiconti Vol. 10, Fasc. 3-4, Roma, 1929 (VII), pp. 168-172, ill.

Ranalli, Renato. I/elektron, le leghe leggere, a la loro applicazione nella tecnica aeronautica.

Riv. Aeron., Anno 5, N. 1 (Gen. 1929), Roma, pp. 95-101.

Randolph Field. See Cooper, Mabel: Randolph Field, the greatest thing of its kind in the world.

- See Smith, Gene : The West Point of the air.

Range. The range of aircraft.

The Aeroplane, Vol. 37, No. 16 (Oct. 16, 1929), London, pp. 945-947, ill.

Ranke, H. H. von. Transporting freight by air in Germany.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 633-634.

Rasor, W. W. Graf Zeppelin : queen of the air.

Pan American Magazine, Vol. 42 (Sept. 1929), Washington, D. C, pp. 3-7, ill.

Rateau-Farman. Le compresseur Rateau-Farman et les records d'altitude.

L'Aéronautique (L'Aéro technique, 7e année, No. 81), lime année, No. 124 (sept. 1929), Paris, pp. 301-302, ill.

Rathbun, John B. Aeroplane construction, operation and maintenance, notes on practical aerodynamics, construction details, performance, practical flight, engines, propellers, control systems and types of planes. Transport and pleasure craft for 1929.

Chicago, John R. Stanton Co., 1929, pp. 392, ills., diagrs.

Ratter. See Léglise, Pierre : L'hélice métallique Ratier à pas variable en vol.

Rawdon, Henry S. Corrosion embrittlement of duralumin. V. Results of weather-exposure tests ; VI. The effect of corrosion, accompanied by stress on the tensile properties of sheet duralumin.

National Advisory Committee for Aeronautics, Technical Notes Nos. 304, 305, Feb. 28, May 21, 1929, Washington, V. February 1929, pp. 26, ills., tabls. ; VI. May 1929, pp. 26, ills.

Rea, Courts D. Aeronautic exports increase.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 58, 254.

- The growing export market.

Aviation, Vol. 26, No. 25 (June 22, 1929), New York, pp. 2185-2186, charts.

Rearwin Ken-Royce. The Rearwin Ken-Royce.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 112, ill.

Records. America's marathons of the sky.

Literary Digest, Vol. 102 (Aug. 10, 1929), New York, p. 11.

- Chronology and tabulation of airplane and seaplane records.

Aviation, Vol. 271, No. 8 (Aug. 24, 1929), New York, pp. 425-427.

- The French long-distance records. Some notes on the non-stop flight of

Costes and Bellonte.

Flight, Vol. 21, No. 43 (Oct. 25, 1929), London, p. 1147, ill.

- The long-distance record. The Fairey-Napier monoplane makes a successful start.

Flight, Vol. 21, No. 51 (Dec. 20, 1929), London, pp. 1320-1322, ill., map.

- Official World and American air records. Established under rules and

regulations of the Federation Aéronautique Internationale. Translated and compiled by the Contest Committee, National Aeronautic Association, Washington, D. C.

Aeronautic Review, Vol. 7, No. 3 (March 1029), Washington, pp. 11-13. 9573—30—13

Records. Records du monde.

L'Aéronautique, lime année, No. 121 (juin 1929), Paris, p. 178.

- Sky climbers.

Pop. Mech., Vol. 51 (Jan. 1929), Chicago, pp. 1-3, ill.

- Sky high.

Review of Reviews, Vol. 79 (June 1929), New York, pp. 74-75, 111.

- The world's speed record.

The Aeroplane, Vol. 37, No. 12 (Sept. 18, 1929), London, pp. 759-761, 111.

- World's speed record broken again.

Flight, Vol. 21, No. 38 (Sept. 20, 1929), London, p. 1029, 111.

- World's speed records twice beaten by Great Britain in one day.

Flight, Vol. 21, No. 37 (Sept. 13, 1929), London, p. 1017, ill.

- See Coste et Bellonte : Notes sur le matériel avec lequel Costes et Bellonte

ont battu le record du monde de distance.

- See Endurance record : Endurance flight record is 420 hr.

- See Everling, E. : Die Wertung der Weltrekorde.

- See Greene, D. B. : Messages from the sky. A narrative of what Reg

and Jim thought and did while breaking and making a new world record.

- See Paris-Tzitzikar : L'avion du nouveau record de distance.

- See Soucek, Apollo: High boat. A tale of the realm above the earth in

which no other American has trod.

Redempt, Léo. See Hirschauer, L., et Ch. Dollfus : L'année aéronautique 19281929.

Reed, A. H. Coordinated buss service and air transport.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 136, 138, ill.

Reed, Sylvantjs Albert. See Wright, Milton : Builders of the aviation industry.

Reeves, Earl. Lindbergh flies on ! A story of a hero, and of the pioneers, and " empire builders of the air " who followed him.

New York, R. M. McBride & Company, 1929, pp. 292, ills.

Refueling. Refueling endurance mark raised to 246 hr. 44 min.

Aviation, Vol. 27, No. 3 (July 20, 1929), New York, p. 178.

- What constitutes "refueling"?

Aviation, Vol. 27, No. 7 (Aug. 17, 1929), New York, p. 327.

- See Campbell, Hayden S. : Refueling from the ground.

- See McReynolds, Charles P. : The refueling flight of the " Question Mark."

- See Samayoa, William F.: Practical air refueling. A scientific discussion of its application to increase the cruising range and to eliminate danger at the take-off with a heavy load.

- See Scott, W. H. : The refueling endurance record.

Register. Aircraft international register.

Flight, Vol. 21, No. 32 (Aug. 8, 1929), London, pp. 863-864.

Regulations. See Laws and Regulations.

Retd, Elliott G. An analysis of airplane landing speeds.

Aviation, Vol. 27, No. 3 (July 20, 1929), New York, pp. 192-194.

- The Guggenheim aeronautic laboratory at Standford University.

Aviation, Vol. 26, No. 19 (May 11, 1929), New York, pp. 1603-1604, ill.

Reid, Elliott G. See Lesley, Everett Parker, and E. G. Reid: A new method for the prediction of airplane performance.

-■ See Lesley, E. P., and Elliott G. Reid : Tests of five metal model propellers

with various pitch distributions in a free wind stream and in combination with a model VE-7 fuselage.

Reid Rambler. The Reid Rambler.

The Aeroplane, Vol. 36, No. 6 (Feb. 6, 1929), London, p. 206, ill.

Reinhardt, C. G. Learning to fly.

World's Work, Vol. 58 (Aug. 1929), Garden City, N. Y pp. 52-57, ill.

Reissneb, H. See Bergmann, Stefan, und H. Reissner: Neuere Probleme aus der Flugzeugstatik.

Relief work. With the ice-plane patrol.

Pop. Mech., Vol. 52 (Nov. 1929), Chicago, pp. 731-733, ill.

Renard. The Renard WT-5 aircraft engine.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 124, ill.

Renault. See Blanchet, Georges : La presse en visite aux usines Renault.

Renfro, Robert B. Modern aircraft production methods.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 72-75, 356, ill.

- The Question Mark's flight.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 60, 62, 240, ill.

- Recent spectacular flights.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 66-68, ill.

Renkeb, G. Der Flieger.

Leipzig, Verlag L. Staackmann, 1928, pp. 312.

Rentschler, F. B. Is aviation over expanded?

Magazine of Business, Vol. 56 (July 1929), Chicago, pp. 37-38, ill.

Renvoisé, J. Signalisation aux approches des aérodromes.

L'Aéronautique, lime année, No. 118 (mars 1929), Paris, p. 99, ill.

Repenthin, Walter. Untersuchung über die Veränderung der Windgeschwindigkeit bei Umströmung eines Flügelprofiles.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 13. Heft (15. Juli 1929), München, pp. 341-347, ill., diagrs.

Research. See Great Britain: Aeronautical research in Great Britain.

- See Wimperis, H. E. : The immediate aims of aeronautical research.

Resistance. See Schrenk, Martin: Über Pröfilwiderstandmessung im finge nach dem Impulsverfahren.

Reynolds. See Tubing : Reynolds tubing for aircraft.

Reynolds, R. The Armstrong-Whitworth wind tunnel.

Aircraft Engineer suppl. Flight, Vol. 21, No. 13 (Mar. 28, 1929), London, pp. 258d-258g, ill., diagr.

Rhode, R. V. The pressure distribution over the horizontal and vertical tail surfaces of the F6C-4 pursuit airplane in violent maneuvers.

National Advisory Committee for Aeronautics, Report No. 307, June 12, 1929, Washington, United States Government Printing Office, 1929, pp. 20, ills., diagrs., tabls.

Rhodesia. A new air survey contract in Northern Rhodesia.

Flight, Vol. 21, No. 52 (Dec. 27, 1929), London, pp. 1342-1345, ill., map.

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The Aeroplane, Vol. 36, No. 17 (Apr. 24, 1929), London, pp. 637-640.

- Our Schneider Trophy defenders.

The Aeroplane, Vol. 37, Nos. 7-8 (Aug. 14-21, 1929), London, pp. 458-466, 520-522, ill.

- The Schneider contest in retrospect.

Aviation, Vol. 27, No. 13 (Sept. 28, 1929), New York, pp. 667-669, ill.

- The Schneider Trophy contest.

Flight, Vol. 21, No. 37 (Sept. 13, 1929), London, pp. 997-998, ill.

- Schneider Trophy contest.

The Aeroplane, Vol. 37, No. 6 (Aug. 7, 1929), London, p. 418.

—— Souvenir of the Schneider Trophy contests.

Flight, Vol. 21, No. 36 (Sept. 6, 1929), London, pp. 941-984, ill. History of the Schneider Trophy.

- See Dollf us, Charles : La course.

- See Ducout, Marcel : La Coupe Schneider est conservée par les Anglais.

- See Lallier, Roger : Après la Coupe Schneider.

- See McAlery, C. M. : At Calshot.

- See Orlebar, A. H. : The Schneider trophy.

- See Sagendorph, Kent : Notes on the 1929 Schneider trophy race.

Schofield, T. H. See Grogan, J. D., and T. H. Schofleld : Report on some properties of alloys of aluminium with thorium and silicon.

Scholle, Howard. See Gordon-Bennett: La coupe Gordon-Bennett des ballons libres.

Schools. America raises standards of flying schools.

Air Commerce Bulletin, Vol. 1, No. 6 (Sept. 15, 1929), Washington, pp. 1-4. Department of Commerce, Aeronautics branch.

Schools. Approved air schools.

Air Commerce Bulletin, Vol. 1, No. 5 (Sept. 2, 1929), Washington, p. 25. Department of Commerce, Aeronautics branch.

- Aviation in the schools.

Scient. Amer. Vol. 140 (Jan. 1929), New York, pp. 71-72, ill.

- Inspection and recognition of flying schools.

Domestic Air News, Serial No. 44, Jan. 15, 1929, Washington, p. 15. Department of Commerce, Aeronautics branch.

- School rating being drawn. Government moves to regulate flying courses.

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, p. 20.

- A standard is set for flying schools

U. S. Air Services, Vol. 14, No. 3 (Mar. 1929), Washington, D. C, p. 72.

- See Air Commerce Act : Flying school rating provided for in amendment

to air commerce act.

- See Fog: Fog flying school.

- See Hurtuk, S. H. : Aeronautics in the high schools.

—— See Planck, Charles C. : Systematizing an aviation school.

- See Stier, I. G. : Aviation as a vocational course in the high school.

- See Swope, A.: Teaching of aeronautics in the public schools of the

United States.

Schoonmaker, F. Icarus incorporated.

Outlook, Vol. 152 (July 24, 1929), New York, pp. 488-491, ill.

Schobt, Carl F. C. F. Schory resigns.

Aeronautic Review, Vol. 7, No. 3 (March 1929), Washington, p. 10, port.

- Program of aircraft competitions for 1929. Sanctioned by N. A. A. contest committee.

Aeronautic Review, Vol. 7, No. 1 (Jan. 1929), Washington, pp. 9, 18, ill.

- See Christopher, Luke: Schory's successor appointed. Luke Christopher

takes contest committee duty.

Sohraivogel, Karl. See Dobberke, Max, und Karl Schraivogel: Flugzeug-Sperrholz und seine Prüfung.

Schbenk, Martin, und Max v. Pilgrim. Die Festigkeit von Bolzen in Holzbauteilen.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München [1929], pp. 135-148, ills., diagrs.

Schrenk, Martin. Der gegenwärtige Stand des Höhen-Luftverkehrsproblems.

Forschungen und Fortschritte, 5. Jahrg., Nr. 23/24 (10. u. 20 Aug. 1929), Berlin, pp. 279-280.

—— Probleme des Hohenflugs.

Jahrb. 1929, Deutsch, Versuchsanstalt für Luftfahrt, E. V., Berlin-Adelshof. München [1929], pp. 119-126, ills., diagrs.

- Uber Profilwiderstandsmessung im Fluge nach dem Impulsverfahren.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, München [1929], pp. 9-40, ills., diagrs., tabls.

Sohrenk, Oskar. Eine Möglichkeit zur Unterdrückung der Autorotation von Tragflächen.

Zeitschr. Flugt. Motorlutfscb., 20. Jabrg., 21. Heft (14. Nov. 1929). pp. 553-555, ills., diagrs.

Scheenk, Oskae. Experiments with a wing model from which the boundary is removed by suction.

National Advisory Committee for Aeronautics, Technical Memorandums No. 534, Oct. 10, 1929, Washington, October 1929, pp. 31, ills., diagrs., tabls. From Luftfahrtforschung, June 11, 1929.

- Versuche über Auftriebserzeugung ohne Zuhilfenahme des Anstellwinkels.

Zeitschr. Flugt. Motorlutfsch., 20. Jahrg., 21. Heft (14. Nov. 1929), München, pp. 562-566, ills., diagrs.

Sohroeder, August. Buckling tests of light-metal tubes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 525, Aug. 8, 1929, Washington, August 1929, pp. 18, ills., diagrs., tabls. From 1928 Yearbook of the Deutsche Versuchsanstalt für Luftfahrt.

Schröter, B. E. Die Praxis des Hochseefluges.

Illustrierte Flug-Woche, 11. Jahrg., Heft 1, 2-3, 1929, Berlin-Lichterfelde, pp. 11-12, 32-33, ill.

Schulz, K. Die englische Luftindustrie und ihre Beziehungen zur deutschen Luftfahrt.

Die Luftwacht, Heft 7, Juli 1929, Berlin, pp. 302-305.

- Flugzeuge auf der Internationalen Luftfahrtausstellung in London

1929.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 17. Heft (14. Sept. 1929), München, pp. 447-456, ills., tabls.

- Die Lorenzen-Abgasturbine. Ein neuartiger Turbinen-Vorverdichter für

Höhenmotoren.

Die Luftwacht, Heft 4, April 1929, Berlin, pp. 181-184, ill.

- Present position of the British aircraft industry.

Aeronautica, Vol. 3, No. 7 (July 1929), Amsterdam, Holland, pp. 136-137.

- Das Weltflugwesen im Jahre 1928. III. Industrie und Technik.

Die Luftwacht, Heft 1, Jan. 1929, Berlin, pp. 33-50, ills., diagrs., tabls.

Schulze, W. See Kleffel, W., und W. Schulze: Die Zeppelinfahrt.

Schunk, Helen K. Is there a place for women in aviation?

Aeronautic Review, Vol. 7, No. 12 (Dec. 1929), Washington, pp. 39, 52, port.

Schwam, Morton. Streamline wires and their installation.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1774-1775, diagr.

Science Museum, South Kensington. Handbook of the collections illustrating aeronautics. 1: Heavier-than-air craft. London, H. M. Stationery Office, 1929.

Scott, C. L. By flying boat to India.

Journ. Roy. Aer. Soc, Vol. 33, No. 225 (Sept. 1929), London, pp. 821-828.

- Sir Philip Sassoon's tour in the Blackburn " Iris."

Flight, Vol. 21, No. 19 (May 9, 1929), London, pp. 380-383, ill., map.

Scott, G. H. Handling and mooring of airships.

Journ. Roy. Aer. Soc, Vol. 33, No. 227 (Nov. 1929), London, pp. 1034-1049. Flight, Vol. 21, No. 15 (Apr. 11, 1929), London, pp. 305-306.

Scott, Herbert. Address on " Trade by air."

Flight, Vol. 21, No. 45 (Nov. 8, 1929), London, p. 1197.

Scott, W. H. Texas air transport.

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, p. 62, ill.

- The refueling endurance record.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 67, 266, 268, ill.

Scout monoplane. Scout monoplane.

Aero Digest. Vol. 14, No, 3 (Mar. 1929), New York, p. 106, ill.

BIBLIOGRAPHY OF AEBOSTAUTICS, 1929

201

Scbews. See Propellers.

Sceibe, A. F. Simple airplanes.

Industrial Arts Magazine, Vol. 18 (May 1929), Milwaukee, pp. 184-188, 111.

Scuddeb, Lawrence W. Arizona from the air. The vantage point of the eagle offers scenic delights to the airplane tourist.

Aeronautic Review, Vol. 7, No. 4 (Apr. 1929), Washington, pp. 15-17, 111.

Seadromes. Seagoing seaports.

Nation, Vol. 128 (Nov. 1929), New York, p. 336.

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-- See White, P. W.: Bridging the ocean with man-made islands; interview

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Seaplane floats. See Lower, j. H.: The static longitudinal stability of seaplane floats.

Seaplanes. Flying-boat experience.

Flight, Vol. 21, No. 4 (Jan. 24, 1929), London, pp. 57-58.

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The Aeroplane, Vol. 37, No. 24 (Dec. 11, 1929), London, pp. 1318-1322.

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-- See Dornier, C.: Mitteilungen über eine familie ähnlicher Flugboote.

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- See Klemin, Alexander: Learning to use our wings. Dinghies for flying

boats.

- See Lower, j. H.: The hyclrodynamical efficiency of flying-boat hulls and

and seaplane floats.

-- See P., C. W.: Stability of seaplanes afloat.

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Seattle. Novel design for new airport.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 624-625, ill.

Seed, D. See Spencer, K. T., and D. Seed: Comparison of calculated and measured elasticity of the wings of an aircraft, in connection with the investigation of wing flutter.

Seeding. See Stanton, Charles V.: Seeding waste lands by airplane.

Seewald, Friedrich. Force measurements on airplanes.

National Advisory Committee for Aeronautics, Technical Memorandums No. 519, June 27, 1929, Washington, June 1929, pp. 22, ills., diagrs. From Zeitschrift für Flugtechnik und Motorluftschiffahrt, October 7, 1928.

Seewald, Friedrich. Über die Messung der Kräfte an Luftfahrzeugen.

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, B. V., Berlin-Adlershof, München, [1929], pp. 127-134, ills., diagrs.

Seilkopf, Heinrich. Beiträge zur Kenntnis der atmosphärischen Grenzschicht.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 14. u. 15. Heft (31. Juli 1929), München, pp. 375-379, ills.

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Selga, Miguel. Investigation of the upper air by means of airplanes.

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Seluger, Myron. Kompressorlose Dieselmotoren und Semidieselmotoren. Berlin, Julius Springer, 1929, pp. vi-296, ill.

Sempill, Colonel, the master of. Address on the world's air routes.

Flight, Vol. 21, No. 45 (Nov. 8, 1929), London, pp. 1192-1193.

Serryer, J. Albessard "Triavion" airplane (French). A two-seat tandem monoplane.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 89, Jan. 31, 1929, Washington, January 1929, pp. 5, Ills.

Servo control systems. See Garner, H. M., and K. V. Wright: On the use of a follow-up mechanism in aerodynamic servo control systems.

Servo principle. See Hartshorn, A. S.: The application of the servo principle to aileron operation.

Servo rudder systems. See Wright, K. V.: Wind tunnel tests of various servo rudder systems.

Settle, Thomas G. W. The king of sports. You will certainly book passage on a balloon for anywhere after reading this.

Aeronautic Review, Vol. 7, No. 6 (June 1929), Washington, pp. 18-19, 28, ill.

Seville-Buenos Aires. Seville-Buenos Aires airline terminal.

Bulletin, Pan American Union, Vol. 62 (Dec. 1928), Washington, D. C, pp. 1200-1201, ill.

Seydel, Edgar. Ermittlung der Stabkräfte im Flugzeug-Fachwerk-Rumpf. (Das Verfahren der Wandstab-Komponenten zur Berechnung räumlicher Systeme.)

Jahrb. 1929, Deutsch. Versuchsanstalt für Luftfahrt, E. V., Berlin-Adlershof, München, [1929], pp. 415-448, ills., diagr., tabls.

Seyer, W. F., and J. Stanley Allen. Iodine numbers of lubricating oils before and after use in automobile engines.

Ind. Eng. Chem., Vol. 21, No. 8 (Aug. 1929), Washington, D. C, pp. 793794, table.

Seyffardt, H. A. Die Lage der französischen Luftfahrt und das neue Luftministerium.

Die Luftwacht, Heft 2, 5, Feb. Mai 1929, Berlin, pp. 62-65, 200-204, diagrs.

Seyffardt, Henry j. A European's impression of American aeronautics.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 75, 256-260, ill.

Sharman, C. F. See Taylor, G. I., and C. F. Sharman: A mechanical method lor solving problems of flow in compressible fluids.

- See Taylor, G. I., and C. F. Sharman: Report on progress during 1927-28

in calculation of flow of compressible fluid, and suggestions for further work.

Sheetz, Marjorie. More fare ladies. .An attempt at solving the problem of interesting women in air travel.

Aeronautic Review, Vol. 7, No. 9 (Sept. 1929), Washington, p. 34, ill.

Shenton, Edwabd. Riders of the winds.

Philadelphia, Macrae Smith Company, [1929], pp. 205, ills.

Shoemaker, James M. The Dornier Do.X.

Aviation, Vol. 27, No. 25 (Dec. 21, 1929), New York, pp. 1207-1209, ill., diagr.

- Reliable powerplants for the airship.

Aviation, Vol. 27, No. 24 (Dec. 14, 1929), New York, pp. 1158-1162, ill.

- Watercooled aircraft engines.

Aviation, Vol. 26, No. 9 (March 2, 1929), New York, pp. 638-639, ill.

Short. The Short three-engined float monoplane.

Flight, Vol. 21, No. 34 (Aug. 22, 1929), London, pp. 897-900, ill., diagr.

Shtjmakee, Floyd N. Is air transportation so different?

Airway Age, Vol. 10, Nos. 10-11 (Oct.-Nov. 1929), New York, pp. 16021605, 1778-1780, ill.

Siam. How the Siamese take to the air.

Literary Digest, Vol. 101 (Apr. 1929), New York, pp. 57-59.

-- See Freeman, Andrew A.: Aviation in Siam.

Siberia. See Neely, Frederick R.: To Siberia and return. Alaskan airmen blaze a commercial air trail across the Arctic wastes.

Sibley, H. Better wings for model planes.

Pop. Mech., Vol. 51 (June 1929), Chicago, pp. 1043-1044, ill., diagrs.

- Make this prize-winning tractor monoplane.

Pop. Mech., Vol. 52 (Sept. 1929), Chicago, pp. 500-504, ill., diagrs.

- One-man winder for model planes.

Pop. Mech., Vol. 52 (Nov. 1929), Chicago, pp. 859-860, ill., diagrs.

- This plane flew forty-one minutes.

Pop. Mech., Vol. 52 (Oct. 1929), Chicago, pp. 676-681, ill., diagrs.

Sickness. The problem of air sickness.

Air Commerce Bulletin, Vol. 1, No. 10 (Nov. 15, 1929), Washington, p. 6. Department of Commerce, Aeronautics branch.

Sideslip. See Irving, H. B., A. S. Batson, and A. L. Maidens: Rolling and sideslip experiments on a model slotted biplane of R. A. F. 31 section.

Siepen, H. On the wings of the wind.

Nat. Geogr. Mag., Vol. 55 (June 1929), Washington, D. C, pp. 751-780, ill.

Signals. Standard signal systems for airports.

Air Commerce Bulletin, Vol. 1, No. 10 (Nov. 15, 1929), Washington, p. 8. Department of Commerce, Aeronautics branch.

Sigrist, F. Some aspects of the production problem in aircraft.

Journ. Hoy. Aer. Soc, Vol. 33, No. 219 (March 1929), London, pp. 207234, ill.

Sikorsky. The Sikorsky multiple disc brake.

Flight, Vol. 21, No. 51 (Dec. 20, 1929), London, pp. 1325-1326, ill.

- The Sikorsky S-38 amphibian.

The Aeroplane, Vol. 36, No. 18 (May 1, 1929), London, p. 714, ill.

9573—30-14

Sikorsky, Igor I. Aeronautics in Europe.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 63, 278, 280, ill.

- Airplanes of the future.

Aero Digest, Vol. 15, No. 6 (Dec/ 1929), New York, pp. 54-56, ill.

- Igor I. Sikorsky.

U. S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, pp. 52-54, ill.

- Some aspects of the seaplane and the amphibian.

Mech. Eng., Vol. 51, No. 11 (Nov. 1929), New York, pp. 813-815, ill.

- See Murphy, J. V.: Shirt flapping in the breeze became an airplane in the

sky; interview with I. Sikorsky.

- See Wright, Milton: Builders of the aviation industry.

Silencers. Silencers.

Flight, Vol. 21, No. 48 (Nov. 29, 1929), London, p. 1261, ill.

Silicon. See Grogan, J. D., and T. H. Schofield: Report on some properties of alloys of aluminium with thorium and silicon.

Silver. See Construction: Silver brazing and soldering in airplane construction.

Simamtjra, Kinmattj. See Kobayasi, Tatuo, Kinmatu Simamura and Tatuo Koyama: Application of the inverse Wiedemann effect to torque measurements and to torque variation recordings.

Simeon, Giuseppe. Apparato meccanico per il calcolo dell'altezza e dell'azimut. Riv. Aeron., Anno 5, N. 4 (Aprile 1929), Roma, pp. 135-142, ill.

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Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 535-547,,ill.

Simmonds, Debut of Simmonds " Spartan " production type.: Flight, Vol. 13, No. 1 (Jan. 3, 1929), London, pp. 5-6, ill.

Simmons, L. F. G. Tests on airship models at large Reynolds numbers.

Aer. Res. Comm., Rep. Mem., No. 1234, (Ae. 389), January 1929, London, 1929, pp. 7, diagr.

Aeronautics. Techn. Rep. Aer. Res. Comm. 1928-1929, Vol. 1, London, 1929, pp. 544-550, diagr..

Simpson, G. C. Lightning.

Nature, Supplement, Vol. 134, No. 3134 (Nov. 23, 1929), London, pp. 801-812, ill. " ■■■ 

Simpson, R. H. Columbus prepares for transcontinental air lines.

American City, Vol. 40 (Apr. 1929), New York, p. 150, ill.

Sipp, Edward A. Influence of landing lights on air speeds.

Airway Age, Vol. 10, No. 8 (Aug. 1929), New York, pp. 1215-1217, ill.

Ski. Static test report of type E-l airplane ski. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 636 (Sept. 15, 1929), Washington, United States Government Printing Office, 1929, pp. 6, ills. Air Corps Technical Report No. 3005.

Skin friction. See Fage, A.: The skin friction on a circular cylinder.

- See Jones, B. Melvill: Skin friction and the drag of streamline bodies.

Skywriting. Message writing in the sky.

Literary Digest, Vol. 100 (Feb. 16, 1929), New York, pp. 64-68.

Slate. The Slate all-metal airship.

Flight, Vol. 21, No. 6 (Feb. 7, 1929), London, pp. 101-102, ill.

- See Airships: Le nouveau dirigeable métallique américain Slate.

Slatee, B. A. Engineering of airports.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 96, 108, ill.

Slattek, L. H. London-South Africa on an experimental light 'plane.

Flight, Vol. 21, No. 19 (May 9, 1929), London, pp. 384-385, ill.

Slot installation. The Curtiss-Handley Page slot installation.

Flight, Vol. 21, No. 24 (June 13, 1929), London, p. 481, ill.

Slotted airfoils. See Jacobs, Eastman N. : Pressure distribution on a slotted R. A. F. 31 airfoil in the variable density wind tunnel.

Slotted wings. See Bamber, Millard J. : Wind tunnel tests on an airfoil equipped with a split flap and a slot.

- See Bradfield, F. B., and R. A. Fairthorne: On a method of delaying the

opening of an autoslot (wind tunnel experiments).

- See Bradfield, F. B., and K. W. Clark: Wind tunnel experiments on the

design of an automatic slot for R, A. F. 28 section, and on interconnection with ailerons.

- See Bradfield, F. B., and F. W. G. Greener: Wind tunnel experiments

on the design of an automatic slot for R. A. F. 31 section.

- See Bradfield, F. B., and F. W. G. Greener: Wind tunnel experiments

on the design of an automatic slot for R. A. F. 34 section.

- See Bradfield, F. B., and S. Scott Hall : Wind tunnel tests of a R. A. F.

30 wing fitted with a self-setting slotted wing (pilot plane).

- See Bradfield, F. B., and K. W. Clark: Wind tunnel tests of aerofoils

with pilot planes.

- See Harper, C. B. : Airplane spins and wing slots.

- See Haslam, J. A. G. : Wool-tufts. A direct method for discriminating

between steady and turbulent airflow over the wing surfaces of aircraft in flight; applied to explore the region of effect of the slot on a Bristol fighter wing.

- See Irving, H. B., A. S. Batson, and A. L. Maidens: Rolling and sideslip experiments on a model slotted biplane of R. A. F. 31 section.

- See Jennings, W. G. : Full scale tests of Bristol fighter aeroplane with

R. A. F. 30 wings, fitted with " Pilot planes " at the wing tips.

- See Jones, E. T.: Flight tests on an Atlas fitted with automatic slots

connected with the ailerons and some data relevant to the design of auto-slots for R. A. F. 28 section wing.

- See Jones, E. T., and K. W. Clark: Wind tunnel tests for design on an

automatic slot for Avro 504. N.

- See Katzmayr, Richard : Wings with nozzle shaped slots.

- See Knight, Montgomery, and Millard J. Bamber: Wind tunnel tests

on airfoil boundary layer control using a backward opening slot.

- See Wings : Handley Page slot mechanism.

- See Wright, K. V.: Full scale experiments with a Bristol fighter fitted

with slots and flaps and slot and aileron control.

Smalley, B. C. Seadrome ports of call attaining recognition.

Airports, Vol. 2, No. 6 (June 1929), Flushing, L. I., pp. 35, 48.

Smith, C. R. Southern Air Transport.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 83-88, ill., map.

Smith, E. L. Flying model monoplane.

Industrial Arts Magazine, Vol. 18 (May 1929), Milwaukee, p. 191, diagrs.

Smith, Gene. The West Point of the air.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 58-59, 244, 246, ill. Randolph Field.

Smith, Hugh L. Meeting aeronautical sales problems.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, p. 100.

Smith, J. E. Defining the range of airplane radio transmitting sets.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 69, 258, ill.

- Evolution of aircraft and marine radio beacons.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 76-77, 288, 290, ill.

Smith, Karl F. Carburetor attachment purifies intake air.

Airway Age, Vol. 10, No. 6 (June 1929), New York, pp. 831-832, ill.

- The maintenance and repair of Navy aircraft engines.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 69-71, ill.

Smith, R. H. Aerodynamic theory and test of strut forms.

National Advisory Committee for Aeronautics, Report No. 311, Aug. 16, 1929, Washington, united States Government Printing Office, 1929, pp. 24, ills., diagrs.

Smith, William B. Classification needed for aeronautic insurance.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 62, 246-250.

Smythe, Allen M. A municipal airport for Washington.

Aeronautic Review, Vol. 7, No. 1 (Jan. 1929), Washington, pp. 12-14, ill.

Snodgrass, R. D. Steel for hangar roofs.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 106, 108, ill.

Snow, Virginia. Meeting women's aircraft demands.

Airway Age, Vol. 10, No. 11 (Nov. 1929), New York, pp. 1799-1802, ill.

Snyder, Wilbert Frank. See Chrisler, Vivian Leroy, and W. F. Snyder: Soundproofing of airplane cabins.

Soaring flight. What Germany has learned in soaring flight.

Literary Digest, Vol. 101 (June 15, 1929), New York, pp. 18-19, ill., diagr.

- See Faranda, Alberto: Sistema di freno aerodinamico per velivoli.

- See Gliding.

- See Lippisch, A.: Technical report on the 1928 Rhön soaring-flight contest.

Soldering. Principles involved in soldering aluminum castings on sheets. Airway Age, Vol. 10, No. 5 (May 1929), New York, p. 629.

Somerville, H. A. Flying clubs in Canada.

Airway Age, Vol. 10, No. 4 (Apr. 1929), New York, pp. 449-451, ill.

Somma, Alberto. Alcune formule per il calcolo dell'altezza e dell'angolo azimutale di un astro.

Riv. Aeron., Anno 5, N. 6 (Giugno 1929), Roma, pp. 548-552, ill.

Soucek, Apollo. High boat. A tale of the realm above the earth in which no other American has trod.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 22-23, ills.

- Lieutenant Soucek's world altitude record.

U. S. Air Services, Vol. 14, No. 6 (June 1929), Washington, D. C, p. 46.

Soudées, Mott, Jr., and George Granger Brown. Gaseous explosions. VIII— Effect of tetraethyl lead, hot surfaces, and spark ignition on flame and pressure propagation.

Ind. Eng. Chem., Vol. 21, No. 12 (Dec. 1929), Washington, D. C, pp. 12611268, ills., diagrs., tables.

Sound. See Loth, William: Navigation.—Au sujet du guidage des navires ou aéronefs par ondes dirigées.

Sound proofing. Sound-proof airplanes.

Literary Digest, Vol. 101 (June 15, 1929), New York, pp. 19-20.

- See Chrisler, Vivian Leroy: Soundproofing of airplane cabins.

- See Chrisler, Vivian Leroy, and W. F. Snyder : Soundproofing of airplane

cabins.

South America. South America's urgent need for extensive aerial transport. Flight, Vol. 21, No. 25 (June 20, 1929), London, pp. 509-510.

- Wiping out thousands of miles between the two Americas.

Literary Digest, Vol. 101 (May 18, 1929), New York, pp. 77-79.

- See Matthias, Joachim : Present position, development and possibilities of

aerial traffic in South America, Central America and Mexico.

- See Peck, Annie S. : Wings of South America. Aerial transportation between the continents of the Western Hemisphere is increasing by leaps and bounds.

Southern Air Transport. See Smith, C. R. : Southern Air Transport.

Southern Automotive Services. See Puster, Louis: Services rendered by S. A. S. (Southern Automotive Services, Inc.).

Southern Cross, " Southern Cross " makes record flight.

Flight, Vol. 21, No. 29 (July 18, 1929), London, pp. 735-736, ill.

- See Kingsford-Smith, Charles E., and C. T. P. Uhm : The flight of the

Southern Cross.

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Spark Plugs. The development of sparking plugs for aircraft engines.

Aircraft Engineer suppl. Flight, Vol. 21, No. 39 (Sept. 27, 1929), London, pp. 1056c-1056e, ill.

- See Rabezzana, Hector : Spark plug problems.

Spars. Supplementary report on tests of 6%-inch metal spars. (Airplane Branch Report.)

Air Corps Information Circular, Vol. 7, No. 637 (Sept. 15, 1929), Washington, United States Government Printing Office, 1929, pp. 2, ills. Air Corps Technical Report No. 2990.

Spartanburg. See Adams, D. G. : Spartanburg builds itself an airport.

Speed. See Aimé, Emmanuel : La vitesse instantanée du vol déterminée d'après la son perçu a terre.

Speed. See Alfaro, H.: Increasing airplane speed-range.

Spencer, G. K. Airplanes for the farmer.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 675-676, ill.

- Artificial horizon for aircraft.

Airway Age, Vol. 10, No. 9 (Sept. 1929), New York, pp. 1407-1409, ill.

Spencer, K. T., and D. Seed. Comparison of calculated and measured elasticity of the wings of an aircraft, in connection with the investigation of wing flutter.

Aer. Res. Comm., Rep. Mem., No. 1257 (Ae 406), April 1929, London, 1929, pp. 9, diagrs., tabls.

Sperrt. See Automatic pilot: Sperry automatic pilot.

Sperrt, Elmer A. Aeronautics and arbitration.

U. S. Air Services, Vol. 14, No. 4 (Apr. 1929), Washington, D. C, pp. 37-38.

- Dr. Sperry honored.

IL S. Air Services, Vol. 14, No. 1 (Jan. 1929), Washington, D. C, p. 56. Elected President, American Society of Mechanical Engineers.

Sphere drag. See Jacobs, Eastman N.: Sphere drag tests in the variable density wind tunnel.

Spieweck, Brtjno. Photogrammetric take-off and landing measurements.

National Advisory Committee for Aeronautics, Technical Memorandums No. 496, Jan. 17, 1929, (mimeographed), Washington, Jan. 1929, pp. 14, ills., diagrs., tabls.

From Yearbook of the Wissenschaftliche Gesellschaft für Luftfahrt, Dec. 1926.

Spinning. Why the dreaded tailspin is so often fatal.

Pop. Mech., Vol. 52 (Oct. 1929), Chicago, pp. 558-559, ill., diagr. Literary Digest, Vol. 102 (Sept. 21, 1929), New York, p. 24.

- See Baranoff, Alexis v.: Beitrag zur Frage der Stabilität der Trudelbewegung.

- See Blyth, J. D.: Spinning.

- See Fewster, T. H.: A dash-pot for use in spinning experiments on a

model aerofoil.

- See Fuchs, Richard, und Wilhelm Schmidt: Stationärer Trudelflug.

- See Harper, C. B.: Airplane spins and wing slots.

- See Herrmann, H.: Analysis of flight and wind-tunnel tests on Udet airplanes with reference to spinning characteristics.

- See Herrmann, H.: Auswertung von Flugversuchen und Windjanalmes-

sungen an den Udet-Flugzeugen.

--See Irving, H. B., and A. S. Batson: Experiments on a model of a single-seater fighter aeroplane in connection with spinning.

- See Klemin, Alexander: Learning to use our wings * * * Physiological effect of the spin.

--See Ofstie, Ralph A.: The flat spin.

- See Sutton, Harry A.: Tail spins.

- See Watter, Michael: Spinning characteristics of airplanes.

- See Wright, K. V.: Experiments on the spinning of a Bristol fighter

aeroplane.

Splanemann," B. Das Flugzeugkatapult auf dem Lloyddampfer " Bremen."

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 17. Heft (14. Sept. 1929), München, pp. 437-439, ill.

- See Everling, B., und Benno Splanemann : Der Steigleistungsanteil.

Split flap. See Bamber, Millard J. : Wind tunnel tests on an airfoil equipped with a split flap and a slot.

Spofford, B. D. Manufacturing the Waco.

Aero Digest, Vol. 15, No. 4 (Oct. 1929), New York, pp. 78-80, 270, 272, ill.

Speague, F. Desmond. The German air lines.

Airway Age, Vol.. 10, No. 1 (Jan. 1929), New York, pp. 42-48, ill.

Springs, Elliott White. Above the bright blue sky.

Garden City, N. Y., Doubleday, Doran & Company, inc., 1928, pp. 275.

Stability. Determination of stability from flight test stick force data. (Airplane branch report.)

Air Corps Information Circular, Vol. 7, No. 625 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 12, ills., diagrs., tabls. Air Corps Technical Report No. 2864.

- See Cowley, W. L. : On the stability of controlled motion.

- See Gates, S. B. : Notes on longitudinal stability at stalling in gliding

flight.

—— See Guibert, Marius : Centrage et stabilité des avions.

- See Müller, Horst: The balance of moments and the static longitudinal

stability of airplanes.

- See Müller, Horst: Beitrag zum Momentenausgleich und zur statischen

Längsstabilität der Flugzeuge.

- See Richardson, Laurence B. : Airplane stability.

Stack, Herbert J. Aviation clubs in secondary schools.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 51, 218-220, ill.

Stainless materials. See Bull, H., and Lawrence Johnson : Welding of stainless materials.

Stainless steel. See Hackett, W., jr. : Stainless steel and iron.

- See Hardecker, J. F. : Stainless steel members in H-101.

Staley, F. R. Some pertinent facts about aviation engine oils.

Aviation, Vol. 27, No. 6 (Aug. 10, 1929), New York, pp.. 304-305, ill.

Stalling. An audible stall warning device.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 22 (May 29, 1929), London, p. 890, ill.

- See Clark, K. W., and W. G. Jennings: Full scale determination of the

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- See Garner, H. M., and K. V. Wright: The longitudinal control of an

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- See Gates, S. B. : Notes on longitudinal stability at stalling in gliding

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- See Irving, H. B., and A. S. Batson: Some early model experiments of

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Standardization. See Caspari, Walter, und M. Lehl: Bedeutung der Normen für die Luftfahrt.

- See Caspari, Walter: Internationale Normung.

Standards. See Bauer, M. H. : Bedeutung der Normen für die Luftfahrt.

Standards Flying Clttb. The Standards flying club.

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Stanford University. See Boone, Andrew R. : Research laboratory at Stanford University.

- See Reid, Elliott 6. : The Guggenheim aeronautic laboratory at Stanford

University.

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Aviation, Vol. 26, No. 4 (Jan. 26, 1929), New York, pp. 243-245, ill.

Stanton, T. E. On the effect of air compression on drag and pressure distribution in cylinders of infinite aspect ratio.

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Starters. See Engine starters: Inertia starters for aero engines.

Statax. See Engines: Un type nouveau de moteur pour avions légers "Le Statax."

State legislation. Need for uniform state legislation.

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Statisttos. Civil aeronautics in statistics.

Air Commerce Bulletin, Vol. 1, No. 3 (Aug. 3, 1929), Washington, pp. 8-9. Department of Commerce, Aeronautics branch.

—— Government urges statistical cooperation.

Air Commerce Bulletin, Vol. 1, No. 8 (Oct. 15, 1929), Washington, p. 14. Department of Commerce, Aeronautics branch.

Stearman. Stearman coach.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, p. 110, ill.

Stearns, M. M. All aboard by air; transcontinental passenger service.

World's Work, Vol. 58 (Apr. 1929), Garden City, N. Y., pp. 34-41, ill.

- Flying across America.

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Steel. See Hackett, W., jr.: Stainless steel and iron.

- See Hardecker, J. F.: Stainless steel members in RIOl.

- See Richardson, Edward Adams: Steel for aircraft construction.

- See Ross, Orrin C.: Curves showing column strength of steel and duralumin tubing.

Steel construction. See Sayers, W. H.: Steel aircraft construction in Great Britain.

Steele, Dudley M. Gasoline servicing at airports.

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Steeeing. See Hübner, Walter: Stabilitätseigensschaf ten und Steuerbarkeit der deutschen Landflugzeuge.

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Steinle, J. Vernon. Waxing airplanes.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 118, 120.

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Stout, William B. The present and the future. An inspiring and instructive address before the N. A. A. convention.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 30-32, 45, port.

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Stowe, A. W. Promoting aviation by radio.

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Streamline. See Jones, B. Melville: The streamline aeroplane.

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■—- See Klemin, Alexander, and George F. Titterton: Airplane stress analysis.

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Strother, D. H. See Heald, R. H., and D. H. Strother: Effect of variation of chord and span of ailerons on rolling and yawning moments in level flight.

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Aviation, Vol. 27, No. 3 (July 20, 1929), New York, p. 170, ill.

Victory, John F. See Neely, Frederick R. : The N. A. A. convention.

Villat, Henri. Leçons sur l'hydrodynamique.

Paris, Gauthier-Villars et Cie, 1929, pp. viii, 296. (Chaire de mécanique des fluides et applications, Fondation du sous-secrétariat d'État de l'aéronautique.)

Vincent, E. T. When the Diesel?

Western Flying, Vol. 6, No. 2 (Aug. 1929), Los Angeles, Cal., pp. 46-47, 160,

Vincent, F. W. Map making in the modern maimer.

Sunset, Vol. 63 (Sept. 1929), San Francisco, pp. 23-25, 111.

Vincent, Terence. See Day, Omar H., and Terence Vincent: Miniature aircraft ; how to make and how to fly them ; a manual for use in the club, school, or home.

Virginia. Virginia realizing plan for system of airports.

American City, Vol. 41 (July 1929), New York, p. 86.

Virgrotjx. See Doisy, Pelletier, Gonin, et Vigroux : Le tour de la Méditerranée à bord d'un avion'Amoit.

Visibility. The dangers of the blind spot.

The Aeroplane, Vol. 37, No. 26 (Dec. 25, 1929), London, p. 1445.

- See Millar, Bradford P. : The relation of color to visibility as applied to

aircraft.

Vocabularies. See Vanièr, Joseph F. : Dictionary of aeronautical terms in

abridged form, German-English-French ; French-English-German. Vogt, R. Unsymmetrical forces in an airplane cell.

National Advisory Committee for Aeronautics, Technical Memorandums No. 539, Nov. 14, 1929, Washington, November 1929, pp. 9, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, June 14, 1929.

- Unsymmetrische Kräfte in der Flugzeugzelle.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 11. Heft (14. June 1929), München, pp. 274-276, ill.

Voisin, Gabriel. Le congrès de Washington et l'aviation américaine.

L'Aérophile, 37e année, Nos. 1-2 (ler-15 jan. 1929), Paris, pp. 3-5, ill.

Volmerange, A. Essai sur la maniabilité.

L'Aéronautique (L'Aérotechnique, 7e année, No. 82), lime année, No. 125 (oct. 1929), Paris, pp. 331-338.

Vortex Ring State. See Lock, 0. N. H. : Photographs of streamers illustrating the flow around an airscrew in the " Vortex Ring State."

Vortex street. See Glauert, H. : The characteristics of a Kârmân vortex street in a channel of finite breadth.

Vortex theory. See Goldstein, S. : On vortex theory of screw propeller.

- See Troller, T. : Zur Wirbeltheorie der Luftschrauben.

Vortices. See Terada, Torahiko, and Mituo Tamano: Further researches on periodic columnar vortices produced by convection.

Vought " Corsair." Vought " Corsair " tested with safety-slot wings.

U. S. Air Service, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, pp. 64, 66, ill.

Vultee, Gerard F. Die Herstellung von Lockheel- " Vega " Rümpfen.

Illustrierte Flug-Woche, 11. Jahrg., Helft 1, 1929, Berliu-Lichterfelde, pp. 7-9, ill.

-■ The new n. A. C. A. cowling and its application to the Lockhead "Air

Express."

Aero Digest, Vol. 14, No. 3 (Mar. 1929), New York, pp. 43-44, 222, 224, ill., diagr.

- 20 miles faster.

Western Flying, Vol. 5, No, 3 (March 1929), Los Angeles, Calif., pp. 38-39, 140, ill.

w

W. E. L. 10. Le monoplan de reconnaissance, W. E. L. 10.

L'Aéronautique, lime année, No. 126 (now 1929), Paris, pp. 362-368, ill.

Waco. See Spofford, B. D. : Manufacturing the Waco.

Wagnek, Herbert. The analysis of aircraft structures as space frameworks. Method based on the forces in the longitudinal members.

National Advisory Committee for Aeronautics, Technical Memorandums No. 522, June 18, 1929, Washington, July 1929, pp. 35, ills.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, August 14, 1928.

- Ebene Blechwandräger mit sehr dünnem Stegblech.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 8.-12. Heft (29. April-28. Juni 1929), München, pp. 200-207, 227-233, 256-262, 279-284, 306-314, ills., diagrs.

- Remarks on airplane struts and girders under compressive and bending

stresses.

National Advisory Committee for Aeronautics, Technical Memorandums No. 500, Feb. 14, 1929, Washington, Feb. 1929, pp. 26, ills., diagrs.

From Zeitschrift für Flugtechnik und Motorluftschiffahrt, June 14, 1928.

Wait, William, Jr. Development of high speed racing design.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 428-431, ill.

Wales. H. R. H. The Prince of Wales on air travel. Speech to the Institute of Transport.

Flight, Vol. 21, No. 12 (Mar. 21, 1929), London, p. 232.

Walker, Donald F. Allegheny Mountains soaring exploration expedition. Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 82, 244, ill.

Walker, George E. How chemical engineering has improved aircraft.

Chemical & Metallurgical Engineering, Vol. 36, No. 6 (June 1929), New York, pp. 348-350, ills.

Walker, W. S. See Fage, A., V. M. Falkner, and W. S. Walker: Experiments on a series of symmetrical Joukowski sections.

- See Townsend, H. C. H., W. S. Walker, and J. H. Warsap: Experiments

with the family of airscrews in free air at zero advance.

Wallace, Archer. Heroes of peace.

Garden City, N. Y., Doubleday, Doran & Company, inc., 1929, pp. ix, 133.

Walter-Castor. The 240-H. P. Walter-Castor aero engine.

Flight, Vol. 21, No. 7 (Feb. 14, 1929), London, pp. 115-116, ill.

Walters, N. Aeroplane wheels and tyres.

Flight, Vol. 21, No. 51 (Dec. 20, 1929), London, p. 1326.

Walton, Francis D. Air-mail and T. A. T. system.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 64-65, 250, 252, ill.

- Aviation's progress in the West Indies.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 81, 268, 270, ill.

- " The infant industry."

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 58-66, ill.

" Wapiti." First R. A. A. F. " Wapiti " christened.

Flight, Vol. 21, No. 9 (Feb. 28, 1929), London, pp. 154-156, ill.

Ward, R. H. Motorships of the air.

World's Work, Vol. 58 (Sept. 1929), Garden City, N. Y., pp. 77-80, ill.

Waelick, William Walter,. Naval aviation; a text book for the instruction of midshipmen in the Department of Seamanship, U. S. Naval Academy, compiled by Lieutenant W. W. Warlickn . . . revised by Lieutenant Commander V. F. Grant.

Annapolis, Md., United States Naval Institute, 1929, pp. 140, ills.

Warner. Warner Scarab engine.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 114, 116, ill.

Warner, Edward P. The A. S. E. propeller and power plant sessions.

Aviation, Vol. 27, No. 9 (Aug. 31, 1929), New York, pp. 469-473, diagr.

—— The Aeronautical Chamber talks of many things.

Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, pp. 519-523, ill.

- The airplane design session of the S. A. E.

Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, pp. 514-518.

- Commercial aviation and engineering.

Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, pp. 538-541.

- Lessons from the races.

Aviation, Vol. 27, No. 13 (Sept. 28, 1929), New York, pp. 663-666, ill.

- Light alloys in aircraft.

Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, pp. 511-513, ill.

- N. A. A. launches private flying clubs. Grant of $12,000 by Guggenheim

Fund enables plan to become effective at once.

Aeronautic Review, Vol. 7, No. 6 (June 1929), Washington, pp. 13-15, 34, port.

- Private flying clubs.

Aeronautic Review, Vol. 7, No. 10 (Oct. 1929), Washington, pp. 37, 54, port.

- The S. A. E. discussion of standards and aircraft lighting.

Aviation, Vol. 27, No. 10 (Sept. 7, 1929), New York, pp. 536-537. v

- Random observations of an air tour passenger.

Aviation, Vol. 27, No. 18 (Nov. 2, 1929), New York, pp. 892-897, ill.

- Safety work in aviation.

Aviation, Vol. 27, No. 15 (Oct. 12, 1929), New York, pp. 749-752, ill.

Warsap, J. H. See Townsend, H. C. H., W. S. Walker, and J. H. Warsap: Experiments with the family of airscrews in free air at zero advance.

Washington, See Allen, Charles E.: Drift act concerning aeronautics, airman, and air traffic rules for State of Washington.

Washington, D. C. Commercial airports near the capital.

U. S. Air Services, Vol. 14, No. 5 (May 1929), Washington, D. C, pp. 48-49.

- Night-photographs of Washington from the air.

Photo-Era, Vol. 62 (May 1929), Wolfeboro, N. H., p. 272.

- See Smythe, Allen M.: A municipal airport for Washington.

Wasp. The Series C " Wasp " engines.

Aviation, Vol. 26, No. 20 (May 18, 1929), New York, pp. 1691-1692, ill.

- " Wasp Junior," new engine by Pratt & Whitney.

U. S. Air Services, Vol. 14, No. 12 (Dec. 1929), Washington, D. C, pp. 32-33, ill.

- The Wasp series " C."

Aeronautic Review, Vol. 7, No. 4 (April 1929), Washington, p. 17.

■- See Love, Francis H.: With Wasps at the World's crossroads.

- See Mead, George J.: The new Wasp series G engine.

Water pressure. See Thompson, F. L.: Water pressure distribution on a twin-float seaplane.

Watkins, Richard Howells. Crash or credit.

Sat. Even. Post., Vol. 201, No. 33 (Feb. 16, 1929), Philadelphia, pp. 37-40, 158 161-162, ill.

Watt, W. H. Blinded by fog.

St. Nicholas Magazine, Vol. 56 (Sept. 1929), New York, pp. 892-895, ill.

-- This airship age.

St. Nicholas Magazine, Vol. 56 (July 1929), New York, pp. 683-686, ill.

Watter, Michael. Aerodynamic safety factors.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 82, 246-254.

- A new application of the logarithmic polar diagram.

Aero Digest, Vol. 15, No. 1 (July 1929), New York, pp. 80-84, diagr.

- Spinning characteristics of airplanes.

Journ. Soc. Automotive Engineers, Vol. 24, No. 5 (May 1929), New York, pp. 474-478, 527, ill.

Waxing. See Steinle, J. Vernon: Waxing airplanes.

Wead, Frank. Certified performance and safety ratings.

Aviation, Vol. 27, No. 23 (Dec. 7, 1929), New York, pp. 1108-1110.

Wead, Frank W. The military value of airplane racing.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 418-421, ill.

- Organization and training in Naval aviation.

Aero Digest, Vol. 15, No. 3 (Sept. 1929), New York, pp. 88-92, ill.

Weather. Civil weather service to airways.

Air Commerce Bulletin, Vol. 1, No. 4 (Aug. 15, 1929), Washington, pp. 16-18. Department of Commerce, Aeronautics branch.

- Radio weather report for aviators.

Air Commerce Bulletin, Vol. 1, No. 12 (Dec. 16, 1929), Washington, pp. 10-11. Department of Commerce, Aeronautics branch.

--Service of the Weather Bureau to aviation.

Science, n. s., Vol. 68 (Dec. 7, 1928), Garrison, N. Y., p. 561.

- See Bowie, Edward Hall: Weather and the airplane.

- See Carpenter, Ford A.: Weather and air transport.

- See Clayton, H. Helm : World' weather records. Errata.

- See Gregg, Willis Ray: Flying weather. What the Weather Bureau is

doing and wants to do for aeronautics.

Weaver, Ralph. The flying high school. How Wilmington, Del., boys are preparing for the future.

Aeronautic Review, Vol. 7, No. 5 (May 1929), Washington, p. 28, ill.

Webb, John Griswold. See New York (State) : Report of the special joint legislative committee on aviation to the Senate and Assembly of the State of New York. Transmitted January 30, 1929.

Wedemeyer, A. Die Standlinie bei der Funkortung.

Zeitschr. Flugt. Motorluftsch., 20, Jahrg., 14, p. 15. Heft (31. Juli 1929), pp. 384-387, ill.

Wedemeyer, E. A. Kurbelwellenschwingungen.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 6. Heft (28. März 1929), München, pp. 145-149, ills., diagrs., tabls.

Weems, P. V. H. Aerial plotting charts.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 78, 259, 260, charts.

- The navigation equipment of the Graf Zeppelin.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1956-1958, ill.

- Navigation without calculation.

Airway Age, Vol. 10, No. 9 (Sept. 1929), New York, pp. 1404-1406, diagr.

Weick, Feed E. Drag and cooling with various forms of cowling for a " Whirlwind " radial air-cooled engine—I.

National Advisory Committee for Aeronautics, Report No. 313, June 5, 1929, Washington, Government Printing Office, 1929, pp. 26, ills., diagrs., tabls.

- Drag and cooling with various forms of cowling for a " Whirlwind"

radial air-cooled engine—II.

National Advisory Committee for Aeronautics. Report No. 314, Feb. 11, 1929, Washington, United States Government Printing Office, 1929, pp. 22, ills., diagrs., tabls.

- The drag of a J-5 radial air-cooled engine.

Popular Aviation and Aeronautics, Vol. 4, No. 2 (Feb. 1929), Chicago, pp. 40-42, ill.

Weick, Feed E., and Donald H. Wood, The effect of the wings of single engine airplanes on propulsive efficiency as shown by full scale wind tunnel tests.

National Advisory Committee for Aeronautics, Technical Notes No. 322, Oct. 8, 1929, Washington, October 1929, pp. 22, ills., diagrs., tabls.

Weick, Feed E. Full scale investigation of the drag of a wing radiator.

National Advisory Committee for Aeronautics, Technical Notes No. 318, Sept. 24, 1929, Washington, September 1929, pp. 5, ills., diagrs., tabls.

- Full scale tests of wood propellers on a VE-7 airplane in the propeller

research tunnel. i

National Advisory Committee for Aeronautics, Report No. 301, April 19, 1929, Washington, United States Government Printing Office, pp. 23, ills., diagrs., tabls.

- Full-scale wind-tunnel tests of a series of metal propellers on a VE-7

airplane.

National Advisory Committee for Aeronautics, Report No. 306, March 29, 1929, Washington, United States Government Printing Office, 1929, pp. 18, ill., diagrs., tabls.

- Tests of four racing type airfoils in the twenty-foot propeller research

tunnel.

National Advisory Committee for Aeronautics, Technical Notes No. 317, Sept. 17, 1929, Washington, September 1929, pp. 6, ills., diagrs., tabls.

Weight. See Barlow, T. M.: Weight of aircraft.

- See Flader, Frederic: Weight control in the design of aircraft.

- See Hardecker, John F., and B. E. Lambert: Airplane weight control.

Weihmiller, H. E. Revised nomographic column charts with isobars of weight and tensile strength.

Air Corps Information Circular, Vol. 7, No. 631 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 9, diagrs., tabls. Air Corps Technical Report No. 2922.

Weiss. L'Espace.

Paris, Louis Querelle.

Weist, Bruno. Uber Flug- und Aufnabmetechnik des Luftbildes. Die Luftwacht, Helt 6, Juni 1929, Berlin, pp. 255-257, ill.

Welding. The design of welding jigs and fixtures.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, p. 92, ill.

—- See Alexander, Peter P.: Atomic hydrogen welding and its use.

- See Alexander, Peter P.: Atomic hydrogen welding process.

- See Backus, Harold A.: Welding experience gained by one aircraft

builder.

- See Bull, H., and Lawrence Johnson: Welding of stainless materials.

-■ See Caluwaert, E. C.: Aeronautical welding schools.

- See Clark, S. C, and W. L. Gastob: The welding of stamped and

formed airplane parts.

- See Dunlap, W. M.: Welding aluminum and its alloys.

- See Duralumin: How to weld duralumin.

- See Hoffmann, W.: Welding rustproof steels.

- See Johnson, J. B.: Oxy-acetylene welding in the aircraft industry.

- See Kuchel, Ludwig: Autogenous welding in airplane construction.

- See Whittemore, H. L.: Testing welded joints for aircraft structures.

Wenzinger, Carl J., and Oscar Loeser, jr. Wind tunnel pressure distribution tests on an airfoil with trailing edge flap.

National Advisory Committee for Aeronautics, Technical Notes No. 326, Oct. 31, 1929, Washington, October 1929, pp. 10, ills., diagrs., tabls.

Wenzinger, Carl J. See Knight, Montgomery, and Carl J. Wenzinger: Wind tunnel tests on a series of wing models through a large angle of attack range. Part I—Force tests.

West, A. G. The air patrol of the Coast Guard.

Aero Digest, Vol. 15, No. 2 (Aug. 1929), New York, pp. 56-58, 284, 286, 288,

ill.

West Indies. See Gannett, W. H.: Flying in- the West Indies. A pioneer air traveler extends a hand to the younger generation.

-■ See Walton, Francis D.: Aviation's progress in the West Indies.

West Virginia. See Boyd, Peter : Flying in West Virginia. The advent of aircraft is a boon to the development of the mountain state.

Western air express. See Hanshue, Harris M.: Over the arrowhead trail, The western air express trip is more than a flight—it's an education.

Western Aircraft Show. Highlights of the Western Aircraft Show.

Aviation, Vol. 27, No. 22 (Nov. 30, 1929), New York, pp. 1058-1061, ill.

- Western Aircraft Show a colorful event.

Airway Age, Vol. 10, No. 12 (Dec. 1929), New York, pp. 1929-1931, ill.

Western Airport Conference. Accomplishments of the all-western airport conference.

Aviation, Vol. 27, No. 22 (Nov. 30, 1929), New York, pp. 1062-1066, ill.

Western States Air Commerce and Airways Conference. See Baldridge, H. C.: Western States hold air conference.

Westing, Ralph. Autogiroing in America. How and why Harold F. Pitcairn regards the child of Cierva.

Aeronautic Review, Vol. 7, No. 7 (July 1929), Washington, pp. 24-25, ills.

Westland. The Westland Four.

The Aeroplane, Vol. 36, No. 9 (Feb. 27, 1929), London, pp. 312-315, ill., diagr.

- The Westland IV commercial monoplane.

Flight, Vol. 21, No. 9 (Feb. 28, 1929), London, pp. 157-161, ill., diagr.

- The Westland IV commercial monoplane (British). Three "Cirrus III"

engines.

National Advisory Committee for Aeronautics, Aircraft Circulars No. 95. April 26, 1929, Washington, April 1929, pp. 8, ills.

- The " Westland IV " limousine,

Flight, Vol. 21, No.,49 (Dec. 6, 1929), London, p. 1289, ill.

- The Westland Widgeon.

The Aeroplane, Vol. 36, No. 9 (Feb. 27, 1929), London, pp. 331-334, ill.

- The Westland " Widgeon IIIA."

Flight, Vol. 21, No. 11 (Mar. 14, 1929), London, pp. 206-207, ill., diagr.

Weterbachek, R. D. Airports.

Sat. Eve. Post, Vol. 201 (Feb. 23, 1929), Philadelphia, pp. 10-11, ill.

- Aviation's third decade.

Sat. Eve. Post, Vol. 201 (May 25, 1929), Philadelphia, pp. 18-19, ill.

- Boats with wings.

Sat. Eve. Post, Vol. 202 (July 27, 1929), Philadelphia, p. 23.

Weyl, A. R. Eine kritische Bemerkung zur Konstruktionspraxis.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 12. Heft (28. Juni 1929), München, p. 301.

Whale Shootées. See Boone, Andrew R. : Wings for whale shooters.

Wheeler,, George F. See Black, Archibald, and George F. Wheeler : Large scale operations of five, ten, and eighteen passenger planes.

Wheels. See Dowty, George H. : Internally-sprung wheels for aircraft.

- See Walters, N. : Aeroplane wheels and tyres.

Wherle, Wh., et A. Viaut. Memorial de l'office National Météorologique de France. Les traversées et tentatives de traversées aériennes de l'Atlantique Nord en 1927, au point de vue météorologique. Paris.

Whirling arm. See Bryant, L. W., and A. S. Halliday: Measurement of lateral derivatives on the whirling arm.

Whirlwind engines. See Weick, Fred E. : Drag and cooling with various forms of cowling for a " Whirlwind " radial aircooled engine—I.

- See Weick, Fred E. : Drag and cooling with various forms of cowling

for a "Whirlwind" radial aircooled engine—II.

White, Henry J. Blind flying instruction in France.

Aviation, Vol. 26, No. 13 (March 30, 1929), New York, pp. 954-955, ill.

White, P. W. Bridging the ocean with man-made islands; interview with E. R. Armstrong.

American Magazine, Vol. 108 (Nov. 1929), Springfield, Ohio, pp. 46-49, ill.

White, Thomas D. The first American commercial airplane in China.

U. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, pp. 3234, ill.

White, Thomas D. From wheelbarrow to airplane at one leap.

U. S. Air Services, Vol. 14, No. 11 (Nov. 1929), Washington, D. C, pp. 2629, ill.

Whittemore, H. L. Testing welded joints for aircraft structures.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 161-163, ill., diagr.

Wiedemann effect. See Kobayasi, Tatuo, Kinmatu Simamura and Tatuo Koyama: Application of the inverse Wiedemann effect to torque measurements and to torque variation recordings.

Wieselsberger, C. Theoretical investigation of the effect of the ailerons on the wing of an airplane.

National Advisory Committee for Aeronautics, Technical Memorandums No. 510, April 25, 1929, Washington, April 1929, pp. 25, diagrs.

From Report of the Aeronautical Research Institute, Tokyo Imperial University, No. 30, Vol. II, 16, December 1927.

Wietz, C. E. Looking ahead in airport lighting development.

Aviation, Vol. 27, No. 23 (Dec. 7, 1929), New York, pp. 1100-1104, ill.

Wigand, A. Die gegenwärtige Aufgabe der Aerologie.

Zeitschr. Flugt. Motorluftsch., 20. Jahrg., 14. u. 15. Heft (31. Juli 1929), München, pp. 366-367.

Wijn, J. W. Aerial photography at the ILA.

Aeronautica, Vol. 3, No. 1, 2 (Jan.-Feb. 1929) Amsterdam, Holland, pp. 1116, 34-39, ill.

Wilbur Wright. Science in relation to regulating and promoting civil aviation. The Aeroplane, Vol. 37, No. 5 (July 31, 1929), London, pp. 314-324. Wilbur Wright memorial lecture, 1929.

- Wilbur Wright memorial lecture and conversazione.

Journ. Roy. Aer. Soc, Vol. 33, No. 228 (Dec. 1929), London, pp. 1133-1166, ills., diagrs.

Wilkins, George H. See Lane, D. R.: Radio on the Byrd and Wilkins planes.

Wilkins, Hubert. Some aspects of the Graf Zeppelin flight around the world. Aviation, Vol. 27, No. 12 (Sept. 21, 1929), New York, pp. 594-600, ill.

Wilkins, H. F. Competing with sunshine.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, pp. 46-47, 280, 282, ill.

Williams. See Murphy, Charles J. V.: The flight of Williams and Yancey.

Williams, Alfred. Rückenflug und Kunstflugfiguren aus der Rückenlage.

Die Luftwacht, Heft 3, 4, 6, März, April, June 1929, Berlin, pp. 120-123, 162-164, 258-263, ill.

Williams, M. O. Seeing 3,000 years of history in four hours; airplane journey from Constantinople to Athens.

Nat. Geogr. Mag., Vol. 54 (Dec. 1928), Washington, D. C, pp. 718-739, ill., map.

Wills, F. P. The Magneto compass.

Aero Digest, Vol. 14, No. 5 (May 1929), New York, pp. 72, 74, 254, 256, ill.

Willy Ley. Die Möglichkeit der Weltraumfahrt. Hearusgegeben von Willy Ley unter Mitwirkung von Prof. Oberth, Dr. v. Hoefft, Dr. Hohmann, Dr. Debus, Ing. V. Pirquet Ing. Sander. Allgemein verständliche Beiträge zum Raumshcifffahrtsproblem.

Leipzig, 1928, pp. 344, ill.

Wilmington. See Weaver, Ralph: The flying high school. How Wilmington, Del., boys are preparing for the future.

Wilson, Eugene E. Fleet aviation—It's here to stay! A great story of a great achievement in the plans of the National Defence.

Aeronautic Review, Vol. 7, No. 6 (June 1929), Washington, pp. 23-26, 38, ills.

Wilson, J. A. Gentlemen adventures of the air.

Nat. Georg. Mag., Vol. 56 (Nov. 1929), Washington, D. C, pp. 597-642, ill., map.

Wimperis, H. E. Aeronautical progress in Great Britain.

Journ. Roy. Aer. Soc., Vol. 33, No. 226 (Oct. 1929), London, pp. 935-946.

- The immediate aims of aeronautical research.

Journ. Roy. Aer. Soc, Vol. 33, No. 217 (Jan. 1929), London, pp. 75-82.

Wind. See Ahlborn, Fr. : Strömungsbilder und ihre Erklärung.

- See Budig, Friedrich: Au sujet de l'action sur une voilure d'un vent

latéral une application à la propulsion des bateaux.

- See Eredia, Filippo : I venti di tramontana aile varie quote sulFidroscalo

di vigna di valle.

- See Instruments: Luminous wind indicators.

- See Instruments: A wind-direction indicator.

- See Schmidt, Wilhelm: Die Struktur des Windes.

Wind tunnels. French wind tunnel methods.

Aeronautical Engineering suppl. to The Aeroplane, Vol. 36, No. 17 (Apr. 24, 1929), London, p. 660.

- The N. A. C. A. 20 ft. propeller research tunnel.

The Aeroplane, Vol. 36, No. 17 (Apr. 24, 1929), London, pp. 656-659, ill., diagr.

- See Diehl, Walter S. : Joint report on standardization tests on N. P. L.

R. A. F. 15 airfoil model.

- See Herrmann, H. : Analysis of flight and wind-tunnel tests on Udet airplanes with reference to spinning characteristics.

- See Jacobs, Eastman N. : Investigation of air flow in open-throat wind

tunnels.

- See Katzmayr, R. : Aeromechanical experimentation (wind-tunnel tests).

- See Lapresle, A. : Aérodynamique. Nouveau principe d'établissement des

grandes souffleries aerodynamiques.

- See Lapresle, A. : French wind tunnel methods.

- See Lewis, William A. : Motor control for wind tunnel. Precision speed

regulation for the wind tunnel motor at California Institute of Technology.

—— See Margoulis, W. : A propos de la supersoufflerie de Langley Field.

- See National Advisory Committee for Aeronautics: Au grand tunnel du

Langley Field.

- See Perring, W. G. A.: Wind tunnel tests on a symmetrical aerofoil (Göttingen 429 section).

- See Reynolds, R. : The Armstrong-Whitworth wind tunnels.

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Wines, James P. Activities of the aero chamber of commerce.

Aviation, Vol. 26, No. 9 (March 2, 1929), New York, pp. 630-635, ports.

- Nine years of National Air Racing.

Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, pp. 404-416, ill.

BIBLIOGRAPHY OF AERONAUTICS, 192 9

235

Wines, James P. Operating methods and policies of Curtiss Flying Service.

Aviation, Vol. 26, No. 25 (June 22, 1929), New York, pp. 2180-2184, ill.

- Operation of the Pan American airways system.

Aviation, Vol. 26, No. 17 (Apr. 27, 1929), New York, pp. 1422-1429, ill., map.

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Aviation, Vol. 26, No. 23 (June 8, 1929), New York, pp. 1978-1981, ill.

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Aviation, Vol. 27, No. 7 (Aug. 17, 1929), New York, pp. 333-335, ill.

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Aviation, Vol. 27, No. 9 (Aug. 31, 1929), New York, pp. 479-482, ill.

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Aviation, Vol. 27, No. 6 (Aug. 10, 1929), New York, pp. 298-300, ill.

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Air Corps Information Circular, Vol. 7, No. 635 (Sept. 15, 1929), Washington, United States Government Printing Office, 1929, pp. 16, illus., diagrs. Air Corps Technical Report No. 3002.

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Wings. Handley Page slot mechanisms.

Scient. Amer., Vol. 141 (Nov. 1929), New York, p. 436, diagr.

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Flight, Vol. 21, No. 24 (June 13, 1929), London, p. 476, diagr.

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Air corps Information Circular, Vol. 7, No. 627 (Aug. 1, 1929), Washington, United States Government Printing Office, 1929, pp. 8, ills. Air Corps Technical Report No. 2913.

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Automotive Industries, Vol. 60, No. 10 (Mar. 9, 1929), New York, p. 406, ilL

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9573—30-16

Wings. See Crowley, J. W., jr., and M. W. Green : An investigation of the aerodynamic characteristics of an airplane equipped with several different sets of wings.

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mobility of the fuselage.

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twisted wing with sweep-back.

- See Hartshorn, A. S. : Theoretical relationship for a wing with unbalanced ailerons.

- See Haslam, J. A. G. : Wool-tufts. A direct method of discriminating

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presence of a wing.

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--See Kirste, Léon : Note sur le calcul des ailes épaisses.

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-- See Knight, Montgomery, and Millard J. Bamber : Wind tunnel tests on

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■- See Loeser, Oscar E., jr. : Pressure distribution tests on PW-9 wing

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BIBLIOGRAPHY OF AEBONAUTICS, 192 9

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- See Schrenk, Oskar: Experiments with a wing model from which the

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Winnipeg. The Winnipeg meeting.

The Aeroplane, Vol. 36, No. 25 (June 19, 1929), London, pp. 1023-1024, ill.

Winters, S. R. Wind-driven generator for beacons.

Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 108, 110.

Wire rope. Method of seizing wire rope.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, p. 116, ill.

Wireless. How wireless helps American air mail services.

Flight, Vol. 21, No. 23 (June 6, 1929), London, pp. 459-460, ill.

- Marconi wireless set for light aeroplanes.

Flight, Vol. 21, No. 29 (July 18, 1929), London, pp. 737-738, ill.

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The Aeroplane, Vol. 37, No. 18 (Oct. 30, 1929), London, pp. 1072, 1076, ill.

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Flight, Vol. 21, No. 44 (Nov. 1, 1929), London, pp. 1166-1168, ill.

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Wolfe, Thomas, Jr. Selling air mail to the public.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 171-174, ill.

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Literary Digest, Vol. 103 (Oct. 1929), New York, pp. 55-57.

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Pop. Mech., Vol. 51 (Jan. 1929), Chicago, pp. 42-46, iU.

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Literary Digest, Vol. 102 (Sept. 7, 1929), New York, p. 9, ill.

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Wood, Francis. Airports.

Flight, Vol. 21, Nos. 43-46 (Oct. 25-Nov. 15, 1929), London, pp. 1130-1134, 1160-1164, 1186-1190, 1216-1220, ill., plan.

Woodruff, A. A. Increased dealer profits to aid Fairchild sales.

Airway Age, Vol. 10, No. 2 (Feb. 1929), New York, pp. 184-186, ill.

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Mech. Eng., Vol. 51, No. 8 (Aug. 1929), New York, p. 608.

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Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, p. 73.

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Woolley, Charles H. Training pilots for airline operation.

Aviation, Vol. 27, No. 20 (Nov. 16, 1929), New York, pp. 967-969, ill.

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Hollywood, Cal., Hartwell Publishing Corporation, 1929, pp. xii, 353, ills., map.

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Automotive Ind., Vol. 59, No. 25 (Dec. 22, 1928), New York, pp. 892-897, ill.

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Wright, Johnson. Rogers Sea Hawk flying boat.

Aero Digest, Vol. 14, No. 4 (Apr. 1929), New York, p. 130, ill.

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Aer. Res. Comm., Rep. Mem., No. 1261 (Ae. 410), May 1929, London, 1929, pp. 7, diagrs., tabl.

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Aer. Res. Comm., Rep. Mem., No. 1264 (M. 65), March, 1929, London, 1929, pp. 15, ills., diagrs., tabls.

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Airway Age, Vol. 10, Nos. 1-2 (Jan.-Feb. 1929), New York, pp. 22-27, 164-167, ill.

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f

Weight Aeronautical Corporation. Wright to make "Gipsy" engines.

TJ. S. Air Services, Vol. 14, No. 2 (Feb. 1929), Washington, D. C, p. 62.

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Wronsky, Martin. Englische und deutsche Luftverkehrspolitik. English and German air transport policies.

Die Luftwacht, Heft 7, Juli 1929, Berlin, pp. 298-301, ill.

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Aeronautica, Vol. 3, N. 3 (March 1929), Amsterdam, Holland, pp. 52-55, port., ill.

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Living Age, Vol. 385 (Jan. 1929), New York, pp. 340-343, ill., map.

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Aviation, Vol. 26, No. 23 (June 8, 1929), New York, pp. 1984-1986, ill.

X

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Y

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Yates, B. Edith Keating is paid to look down on the human race.

American Magazine, Vol. 108 (Sept. 1929), Springfield, O., pp. 77-78.

Ybarra, T. R. German planes and war aces.

Outlook, Vol. 151 (Jan. 23, 1929), New York, p. 131.

Yellow Bird. Sky-crasher peril on the Yellow Bird.

Literary Digest, Vol. 102 (July 13, 1929), New York, pp. 48-54, ill.

Young, Clarence M. Air transport progress in the United States.

Aviation, Vol. 26, No. 24 (June 15, 1929), New York, pp. 2062-2065, ill.

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Aviation, Vol. 27, No. 8 (Aug. 24, 1929), New York, p. 379, ill.

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Aero Digest, Vol. 15, No. 5 (Nov. 1929), New York, pp. 57, 250-254, ill.

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American City, Vol. 41 (Nov. 1929), New York, pp. 85-89, ill., plan.

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American City, Vol. 40 (Apr. 1929), New York, pp. 131-132.

\

Young, D. C. Lighting of airway roof signs.

Airway Age, Vol. 10, No. 5 (May 1929), New York, pp. 660-662, ill.

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American City, Vol. 41 (Oct. 1929), New York, pp. 98-100, ill.

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Airway Age, Vol. 10, No. 3 (Mar. 1929), New York, pp. 292-293, ill.

Z

ZLR. Zeitschrift für das gesamte Luftrecht. Band II, Heft 1, 1928. Berlin und Leipzig, Walter de Gruyter & Co.

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ZRS-4. Master-ring laid for ZRS-4.

Aero Digest, Vol. 15, No. 6 (Dec. 1929), New York, pp. 112, 114, ill.

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Zahm, Albert Francis. Flow and force equations for a body revolving in a fluid.

National Advisory Committee for Aeronautics, Report No. 323, Jan. 14, 1930, [Washington], pp. 41, ills., tabls.

Zahm, Albert Francis, and F. A. Louden. Tables for pressure of air on coming to rest from various speeds.

National Advisory Committee for Aeronautics, Report No. 316, July 12, 1929, Washington, United States Government Printing Office, 1929, pp. 8, tabls.

Zani, Gino. Ancora della responsabilità aeronautica extracontrattuale. Riv. Aeron., Anno 5, N. 9 (Sett. 1929), Roma, pp. 548-566.

Zarzar, V. New air lines in Russia.

Aero Digest, Voi. 15, No. 1 (July 1929), New York, pp. 72-73, ill.

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Aero Digest, Voi. 14, No. 2 (Feb. 1929), New York, p. 58, 220-224.

Zeppelins.. La causa de las averias de los motores del " Graf Zeppelin."

Ibérica, Vol. 32, No. 807, Año 16, Tomo 2 (21 die. 1929), Roma, p. 375.

- Life's ups and downs on a globe-girdling Zep.

Literary Digest, Vol. 102 (Sept. 14, 1929), New York, pp. 40-52, ill. *

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Pop. Mech., Vol. 52 (July 1929), Chicago, pp. 28-31, ill.

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herausgegeben von Rolf Brandt.

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Zeppelins. See Rosendahl, C. E. : Inside the " Graf Zeppelin." The United States official ovserver in the monster dirigible's flight to America tells the details of its construction.

Zihlman, Frederick N. See United States Congress. Joint Commission on airports: Airports, national capital * * * Report. \

Zimmee, Ludo L. The Zimmer code. A marking and identification system for airways.

Aero Digest, Vol. 14, No. 2 (Feb. 1929), New York, pp. 86, 88, diagr.

Zino. See Gough, H. J., and H. L. Cox: The behaviour of a single crystal of zinc subjected to alternating torsional stresses.

Zodiac. La vedette semi-rigide Zodiac w V-Ï0 " aux essais.

L'Aéronautique, lime année, No. 117 (fév. 1929), Paris, p. 37, ill.


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