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Luftfahrtgeschichte: Bibliography of Aeronautics 1923 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 sechsten Band eine Bestandsaufnahme der internationalen Luftfahrtliteratur im Jahre 1923.

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BIBLIOGRAPHY OF AERONAUTICS

1923

By PAUL BROCKETT

in

ABBREVIATIONS

Aer. Eng. Snppl. The Aeroplane_______

Aeron. Journ_______________________

Amer. Gas Eng. Journ---------------Amer. Mach________________________

Atti Assoc. Ital. Aerotecn------------

Aut. Eng___________________________

Aut. Flugv_________________________

Ann. Soc. Met. France_______________

Automobile-Automotive Ind__________

Aviat. Aer. Eng---------------------Bull. Aero-Club Suisse---------------Bull. Exper. Depart. Airplane Eng. Div.

Bull. Soc. Ene. Ind. Nat-------------Com. Aer. Int. Gen. Rend. Teen. Dir. Sup. Gen. Costr. Aeron.

Deutsche Luftf. Zeitschr_____________

Electr. Railw. Journ-----------------

Journ. Amer. Soc. Mcch. Eng---------

Journ. Amer. Water Works Ass'n------

Journ. Inst. Electrical Engineers------

Journ. Frankl. Inst------------------

Journ. Mil. Serv. Inst----------------

Journ. Phys. Rad,_»----------------

The Aeroplane—

. . . Aeronautical Engineering Supplement to The Aeroplane, London.

Aeronautical Journal, London. Changed title to Journal of the Royal Aeronautical Society.

American Gas Engineering Journal, New York.

American Machinist, New York.

Atti dell'Associazione Italiana di Aero-

technica, Roma. Automotive Engineering, New York. Automobil-Motorrad und Flugverkehr,

Berlin.

Annuaire, Société Météorologique de France, Paris.

The Automobile and Automotive Industries, New York.

Aviation and Aeronautical Engineering, New York.

The Bulletin, Aero Club Suisse, Berne.

The Bulletin of the Experimental Department, Airplane Engineering Division, U. S. A., Dayton, Ohio.

Bulletin de la Société d'Encouragement pour l'Industrie Nationale, Paris.

Commissariato dell' Aeronautica Intendenza Generale, Rendiconti Tecnici délia Direzione Snperiore del Genio e délie Costruzioni Aeronautichc, Roma.

Deutsche Luftfahrer Zeitschrift, Berlin.

Electric Railway Journal, New York.

Journal of the American Society of Mechanical Engineers, New York.

Journal of the American Water Works Association, Baltimore.

Journal of the Institute of Electrical Engineers, New York.

Journal of the Franklin Institute, Philadelphia.

Journal of the Military Service Institution, Governors Island, New York.

Le Journal de Physique et le Radium, Paris.

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.

La Conq. l'Air______________________ La Conquête de l'Air, Brussels.

La Techn. Aéron___________________La Technique Aéronautique, Paris.

Mech. Eng_________________________ Mechanical Engineering Journal of the

American Society of Mechanical Engineers, New York.

Nachr. Luftf_______________________Nachrichten für Luftfahrer, Berlin.

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.

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

Rend. Instituto Sper. Aer____________ Rendiconte dell'Istituto Sperimentale

Aeronáutico, Roma.

Rév. Gen. Seien_____________________ Revue Générale Scientfique, Paris.

Riv. Ital. Aeron_____________________ Rivista Italiana Aeronáutica.

Scient. Amer________________________ Scientific American, New York.

Scient. Amer. Suppl_________________Scientific American Supplement, New

York.

Techn. Berichte_____________________ Technische Berichte, Charlottenburg.

Tech. Rept. Advis. Com. Aeronautics,. Technical Report of the Advisory Committee on Aeronautics, London.

Zeitschr. Flugt. Motorluftsch_________Zeitschrift für Flugtechnik und Motorluftschifffahrt, München.

Zeit. Österr. Ing. Arch. Ver___________Zeitschrift Österreichischen Ingenieur-

und Arehitecten-Vereins, Wien,

INTRODUCTION

This work covers the literature published from January 1 to December 31, 1923, and continues the work of the Smithsonian Institution issued as volume 55 of the Smithsonian Miscellaneous Collections, which covered the material published prior to June 30, 1909, and the work of the National Advisory Committee for Aeronautics as published in the Bibliography of Aeronautics for the years 1909 to 1916, 1917 to 1919, 1920 to 1921, and 1922.

As in the Smithsonian volume and in the Bibliography of Aeronautics for the years 1909 to 1916, 1917 to 1919, 1920 to 1921, and 1922, citations of the publications of all nations have been 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, Executive Committee National Advisory Committee for Aeronautics.

November 15, 1925.

VII

BIBLIOGRAPHY OF AERONAUTICS

1923

By Paul Brockett

A

A. N. E. C. (Air, Navigation & Engineering Co., Ltd.). The A. N. E. C. light airplane.

Flight, Vol. 15, No. 13 (Mar. 29, 1923), London, pp. 169-172, ill.

A.. T. Quelques chiffres et quelques réflexions sur le trafic des lignes aériennes françaises en 1922.

L'Aérophile, 31e année, Nos. 3-4 (ler-15 fév. 1923), Paris, p. 46.

Aachen. Abhandlungen aus dem Aerodynamischen Institut an der Technischen Hochschule Aachen.

Lieferung I. 1921, pp. 66, ill. Lieferung II. 1922, pp. 58, ill.

Accidents. The investigation of accidents.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 5 (Aug. 1,1923), London, pp. 125.

- The K. L. M. and the Rotterdam accident.

The Aeroplane, Vol. 25, No. 11 (Sept. 12, 1923), London, p. 270.

- Sudden death in the Army Air Service.

Literary Digest, Vol. 77 (May 12, 1923), New York, pp. 67-71.

- See Centervall, B. : Flight and a fall.

- See Lemoine, Jean : Les accidents de la Coupe Gordon-Bennett des balloons

et l'électricité atmosphérique.

- See Sherry, B. J. : Wind conditions at time of airplane accidents.

Achenbach, W. Variation in the number of revolutions of air propellers.

National Advisory Committee for Aeronautics, Technical Notes No. 131 (Mar. 1923), Washington, pp. 7.

Ackeret, J. Ein Beispiel zum statischen Segelflug.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 11-12 (June 26, 1923), Berlin, pp. 86-S9, ill.

Adams, Haddon C. Aerial photography in highway building.

Highway Magazine, Vol. 13, No. 12 (Jan. 1923), Chicago, pp. 3-5, ill.

Adams, Porter. Making Aying safe and desirable.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 93-99, ill.

- The National Aeronautic Association.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 397-398.

Adams, Walter L. Machining half bearings for airplane motors.

Amer. Mach., Vol. 58, No. 9 (Mer. 1, 1923), New York, pp. 335-336, ill.

Advisory Committee for Aeronautics. Aeronautics. Technical Report of the Advisory Committee for Aeronautics for the year 1919-20. Vol. 1. General questions, airships and model aeroplane research.

London, H. M. Stationery Office, 1923, pp. 363, index pp. xvi, ill.

- Vol. 2. Full scale work on aeroplanes, air screws, instruments, etc.

London, H. M. Stationery Office, 1923, pp. viii, 371, index to vols. 1 and 2, pp. xiv.

1

Aerial derby. Aerial derby and August bank holiday meeting.

Flight, Vol. 15, No. 31 (Aug. 2, 1923), London, pp. 454-457, ill., map.

- On the aerial derby and the Air League cup.

Ttao AeroDlane. Vol. 25. No. 6 (Aue. 8. 1923), London, pp. 150-152. 164-168, ill.

Aerial derby around the world, special commission organizing the. See Special commission organizing the first aerial derby around the world.

Aero Chamber of Commerce. Annual meeting of Aero Chamber of Commerce Aviation, Vol. 15, No. 4 (July 23, 1923), New York, pp. 90-92, ill.

AÉRO-Club de France. See Besangon, Georges: L'année aéronautique 1922. Rapport présente à l'Assemblée generale de l'Aero-Club de France, du 28 avril 1923. -

- See Peyriller, Edouard: Congrès des sociétés afSliées à l'Aero-Club de

France.

Aerodynamics. See Bertrand, J.: Les coefficients de sécurité et l'aviation.

- See Burzio, Filippo: Theorie della dinamica atmosferica.

- See Costanzi, Giulio, e Mario Bernasconi: Sulla variazione della portanza

e della resistenza dei modelli di aeroplani e di ali col variare della velocità.

- See Dupont, P.: Sur une théorie électrostatique applicable à certains

phénomènes d'aérodynamique.

- See Fuchs, R., and L. Hopf: Aerodynamik.

- See Hoot, Henry Irvin: The effect of airfoil thickness and plan form on

lateral control.

- See Klemperer, W., and T. Bienen: Comparing aerodynamici properties

of wings.

- See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Mar-

goulis, R. Verduzio, Richard Katzmayr, E. B. Wolff and A. F. Zahm: Standardization and aerodynamics.

- See Low, A. R. : Use of the millibar in aerodynamics.

- See Magaldi, Giulio: Aspetti aerodinamici della costruzione de grandi

velivoli.

—■— See Norton, Frederick Harwood: The small angular oscillations of airplanes in steady flight.

- See Norton, Frederick Harwood: A study of longitudinal dynamic stability in flight.

- See Norton, Frederick Harwood, and T. Carroll: The vertical, longitudinal

and lateral accelerations experienced by an SE5A airplane while maneuvering.

- See Olmeda, Fernando Bertozzi: Caratteristiche aerodinamiche di modelli

d'ala.

- See Rijksstudiedienst voor de Luchtvaart Amsterdam: Onderzoek naar

den invloed van een uitsnijding in den voorrand van het draagvlak van het Fokker F3-vliegtuig op de aerodynamische eigenschappen. Rapport A-29.

- See Roy, Maurice: Sur la théorie des surfaces portantes.

- See Toussaint: Application de la théorie des tourbillons à l'aérodynamique

des ailes sustentatrices.

Aerodynamics. See Toussaint, A., W. Margoulis et R. Pris : Répertoire d'aérodynamique expérimentale.

- See Tuckerman, L. B.: Notes on aerodynamic forces on airship hulls.

- See Ushakoff, K. A.: Aerodynamical balance of the Etalon type.

- See Wilson, Edwin Bidwell: Dynamic stability as affected by the longitudinal moment of inertia.

- See Zahm, Albert Francis: The aerodynamic plane table.

Aerofoils. Five new American aerofoils. Some useful wings for light planes. Flight, Vol. 15, No. 21 (May 24, 1923), London, pp. 283-285.

- See Glauert, H.: Some aspects of modern aerofoil theory.

- See Glauert, H.: Theoretical relationships for the lift and drag of an

aerofoil structure.

- See Glauert, Muriel: Two-dimensional aerofoil theory.

- See Piercy, N. A. V.: Note on the experimental aspect of one of the

assumptions of Prandtl's aerofoil theory.

- See Piercy, N. A. V.: On the vortex pair quickly formed by some aerofoils.

- See Roy, M.: Sur la théorie des surfaces portantes.

AÉRO-Indicateur. Aéro-Indicateur. Paris, 1922.

Aeromarine. The aeromarine metal hull flying boat.

The Aeroplane, Vol. 25, No. 25 (Dec. 19, 1923), London, p. 588, ill. Flight, Vol. 15, No. 47 (Nov. 22,1923), London, pp. 711-713, ill.

- Aeromarine model AMC commercial flying boat.

Aviation, Vol. 15, No. 18 (Oct. 29, 1923), New York, pp. 550-553, ill.

- The aeromarine night mail plane.

Aviation, Vol. 15, No. 10 (Sept. 3, 1923), New York, pp. 274-275, ill.

■- Aeromarine's new flying boat.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, pp. 48-49, ill.

- The new aeromarine flying boat.

Aviation, Vol. 14, No. 20 (May 14, 1923), New York, p. 527, ill.

L'Aéronaute. Bulletin de la Société française de Navigation aérienne. La Tech. Aéron., 14e année, n. s. Nos. 14-26 (15 jan.-15 déc. 1923), Paris.

Aeronautical, Chamber of Commerce. Aeronautical Chamber of Commerce of America.

Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, pp. 75-76.

-- See United States: The past year and American aviation. Chronology

of 1922 prepared by Aeronautical Chamber of Commerce gives outstanding aviation achievements.

Aeronautical Chamber of Commerce of America. Annual report of the Aeronautical Chamber of Commerce of America (Inc.). Aviation, Vol. 14, No. 8 (Feb. 19, 1923), New York, pp. 219-221.

Aeronautical Research Committee. Report of the Aeronautical Research Committee for the year 1922-23.

London, H. M. Stationery Office, 1923, pp. 48.

Flight, Vol. 15, No. 36 (Sept. 6, 1923), London, pp. 538-539.

Nature, Vol. Ill, No. 2783 (Mar. 3, 1923), London, p. 306,

Aeronautical Research Committee. Reports and memoranda. No. 753: Investigations of the wind forces and movements acting on models, scale, of the Caquot kite balloon. No. 795: Prevention of fire in single-engined aeroplanes. No. 796: Possible causes of fire in an aeroplane crash. No. 805: Some calculations dealing with the disturbed motion of an aeroplane. No. 808: Pressure plotting on fin and rudder of a model of R32. No. 812: Experiments on rigid airship R32. Part 2: Controllability and turning trials. No. 815: Measurement of normal force and pitching movement on rigid airship R33. No. 816: Comparison between the aerodynamic properties of two aerofoils of the same section, but with square and rounded wing tips, respectively. No. 817: Wind-tunnel tests on a Fokker biplane. London, H. M. Stationery Office, 1923.

- Reports and memoranda. No. 799: Experiments on a model of rigid

airship R38. No. 800: Airship stressing panel—report. No. 818: Test of 10 aerofoil sections for metal airscrews.

London, H. M. Stationery Office, 1923.

- Reports and memoranda. No. 811: Experiments on rigid airship R32.

Part 1: Pressure on upper fin and rudder. No. 813: Experiments on rigid airship R32. Part 3: Measurements of resistance and air speed. No. 823: Description of lift, vertical force, and drag balances for the roof of the duplex wind tunnel. No. 827: Prediction of the resistance of rigid airship R33. No. 828: Continuous rotation balance for the measurement of L„. at small rates of roll. No. 832: Influence of calcium and of calcium plus silicon on aluminum. No. 835: Tests of four slotted aerofoils. No. 838: Mechanics of the Wohler rotating bar fatigue test. No. 844: Direction and velocity meter for use in wind-tunnel work, etc. No. 850: List of reports and memoranda published between October 1, 1921, and March 31, 1923. No. 859: Lift and drag of the Bristol fighter, with wings of three aspect ratios.

London, H. M. Stationery Office, 1923.

- Reports and memoranda. No. 783: Report on the effects of overheating and repeated meltings of aluminum; by W. Rosenhain and J. D. Grogan. No. 820: Stresses in a stiff-jointed polygonal frame under a system of parallel loads; by A. J. Sutton Pippard. No. 821: On Castigliano's theorem of least work, and the principle of St. Venant; by R. V. Southwell. No. 822: An attachment of the main balance of 7-foot No. 2 wind tunnel for measuring three forces and three moments; by T. Lavender and others. No. 824: A method of calculating the characteristics of a tapered wing; by H. Glauert. No. 825: The singing of circular and streamline wires; by E. F. Relf and E. Ower. No. 833: Design of tapered wings. No. 834: The Handley Page slotted wing; by H. Glauert. No. 836: The maneuvers of inverted flight; by Squadron Leader R. M. Hill. No. 854: Measurement of aeroplane speed. No. 861: Determination of lift and drag coefficients during a stall by means of accelerometers. No. 863: The effect of a temperature of 210° F. on steel submitted to alternating torsion; by W. Mason. No. 865: Use of a slotted trailing flap on aerofoils of various cambers. No. 866: Calculation of the rotary derivatives due to the yawing for a monoplane wing; by H. Glauert. No. 867: The interference of wind-channel walls on the aerodynamic characteristics of an aerofoil; by H. Glauert.

London, H. M. Stationery Office, 1923.

- Reports and memoranda. No. 705: Experiments on complete models of

six aeroplanes. No. 729: Reduction of the effective value of Young's modulus in. flexible compression members. No. 772: Model tests of 64

section biplane wings with flaps. No. 794: Aerodynamic loading of airships. No. 798: Air consumption and B. H. P. of aero engines. No. 804: Tandem aerofoils. No. 809: Determination of rotary derivatives, with an appendix on approximate formulae for rotary derivatives. London, H. M. Stationery Office, 1923.

Aeronautical Research Committee. Reports and memoranda. No. 778: An electric motor of small diameter for use inside aeroplane models. No. 807: R. A. E. electrical indicator for high-speed internal-combustion engines; also pressure gauge for maximum pressures. London, H. M. Stationery Office, 1923.

- Report of the airship stressing panel. August, 1922.

Reports and Memoranda, No. 800. London, His Majesty's Stationery Office, 1923, pp. 1-76, ill.

- Test of ten aerofoil sections for metal air screws by I. L. Peatfield. March,

1922.

Reports and Memoranda, No. 818. (Ae. 69). London, His Majesty's Stationery Office, 1923, pp. 7, ill.

Aeronautics. Aeronautics.

Scient. Amer., Vol. 128 (Jan. 1923), New York, p. 12.

- Linienführung und Flugpläne.

Der Luftweg, Heft 1 (12. Jan. 1923), Berlin, pp. 4-6.

Aérophile. Notre trente-et-unième année.

L'Aérophile, 31e année, Nos. 1-2 (ler-15. jan. 1923), Paris, p. 3.

Agen, Mter. Aeronautics progresses by leaps and bounds.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 429-430, 457, ill.

- The air-mail service of Europe.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, pp. 335-336.

Agriculture. Airplane in the Department of Agriculture.

Aerial Age, Vol. 16, No. 5 (May 1923), New York, pp. 246-247.

- Fighting boll weevil by means of airplanes.

Aviation, Vol. 15, No. 8 (Aug. 20,1923), New York, pp. 210-212, ill.

- Sowing' seeds by airplane.

Aviation, Vol. 14, No. 21 (May 21, 1923), New York, p. 552.

- See Moran, C: War on the boll weevil.

Ailerons. See Diehl, Walter Stuart: Notes on the design of ailerons.

- See Diehl, Walter Stuart: Principles of efficient aileron design.

Air Code. See International Air Code.

Air Conference. Proceedings of the Second Air Conference, held on 7th and 8th February, 1922.

London, H. M. Stationery Office. [Printed by Eyre and Spottiswoode, ltd.] 1922, pp.128. Great Britain Parliament. Papers by command, Cmd. 1619.

.- Proceedings of the Third Air Conference, held on 6th and 7th February,

1923.

London, 1923, pp. 132, ill.

- The Third Air Conference.

Flight, Vol. 15, No. 6 (Feb. 8, 1923), London, pp. 72-75, ill.

Aib Force. See Great Britain: The monthly Air Force List. Air League. The Air League challenge cup.

The Aeroplane, Vol. 25, No. 6 (Aug. 8, 1923), London, pp. 165-168.

Air Ministry. Air conference, No. II.

Engineer, Vol. 135, No. 3503 (Feb. 16, 1923), London, pp. 165-166.

- The Air Ministry helicopter prizes.

Journ. Eoy. Aer. Soc, Vol. 27, No. 156 (Dec. 1923), London, p. 568.

- Les derniers vols en hélicoptère et le prix de l'Air Ministry.

L'Aêrophile, 31e année, Nos. 15-16 (ler-15 août 1923), Paris, p. 253.

- Health of the R. A. F. Report for 1921.

London, 1923.

- The Third Air Conference.

Engineer, Vol. 135, No. 3505 (Mar. 2, 1923), London, p. 220.

Aie Navigation Co. A low-powered aeroplane.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 14 (Apr. 4, 1923), London, pp. 256-268, ill.

Air ports. Air ports in the United States and possessions.

Aviation, Vol. 14, Nos. 3-1 (Jan. 15-22,1923), New York, pp. 68-72, 98-103.

- See Black, A. : Putting the city on the airline.

Air resistance. See Wieselberger, C" Air resistance measurements on actual airplane parts.

Air Service. Ten-year building program urged for Air Service.

U. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, pp. 33-35.

Airfoils. See Warner, Edward P.: The fairing of airfoil contours. Airplanes. Airplanes and Stonehenge.

Living Age, Vol. 318 (Sept. 1, 1923), Boston, pp. 427-428.

- Big planes hard to control.

Literary Digest, Vol. 78 (Aug. 11, 1923), New York, pp. 56-57.

- Challenger of the airplane.

Nation, Vol. 116 (May 16, 1923), New York, pp. 561-562.

- Flying flivver, eventually, but not now.

Literary Digest, Vol. 77 (June 23, 1923), New York, pp. 62-69, ill.

- New monsters of the air in preparation.

Literary Digest, Vol. 76 (Mar. 24, 1923), New York, pp. 67-68.

- New world's record speedster.

Literary Digest, Vol. 78 (Sept. 29, 1923), New York, pp. 56-60, ill.

- Versatile airplane.

Literary Digest, Vol. 76 (Mar. 3, 1923), New York, pp. 73-74.

Aircraft. A book about aircraft.

London, 1923, pp. 128.

Aircraft yearbook. See Lee, Charles E.: Aircraft yearbook, 1923, compiled by Charles E. Lee, edited by C. G. Grey.

Airscrews. Falcon air screws.

Flight, Vol. 15, No. 39 (Sept. 27, 1923), London, p. 585.

- Una teoria semptificata per lo studio delle eliche.

Eend. Istituto Sper. Aer., Anno 11, N. 1 (Marzo 1923).

- See Hodgson, J. Lawrence: Tests on model propellers.

- See International Air Congress: International Air Congress.

- See Lamé: Adaptation des hélices aux avions.

- See Low, A. R.: Review of air-screw theories.

- See Marcotte, Ed.: Les hélices aériennes et la navigation aérienne.

bibliography of aeronautics 7

Airscrews. See Paragon: The Paragon adjustable and reversible propeller. Change from full speed ahead to reverse made in 3 seconds.

—— See Pistolesi, E. : I piu recenti progressi nello studio dei propulsori elicoidali.

- See Reed: The Reed duralumin air screw.

- See Reed, S. Albert: Air reactions to objects moving at rates above the

velocity of sound with application to the air propeller.

- See Schaff ran, H.: Der antrieb von Luft- und Wasserfahrzeugen durch

Luftpropeller.

- See Suffrin-Hebert: Le calcul et la construction des hélices en bois.

- See Suffrin-Hebert: La fabrication des hélices d'aviation.

Airship stressing panel. See Aeronautical Research Committee: Report of the airship stressing panel. Aug. 1922.

Airships. Age of the airship.

Literary Digest, Vol. 77 (May 5, 1923), Naw York, pp. 99-101.

- Airships.

Flight, Vol. 15, No. 48 (Nov. 29, 1923), London, pp. 719-720.

- The development of airship transport.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 11 (Sept. 12, 1923), London, pp. 273-274, ill.

- Proposed type of rigid airship for civil and military uses and depot ship

with mooring mast.

Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, pp. 372-373, diagr.

- Proposed type of rigid airship suitable for commercial or war-time service,

and a depot ship with mooring mast, evolved from a war-time cruiser.

Scient. Amer., Vol. 128 (Feb. 1923), New York, p. 83, ill.

- See Ihrig, H. K.: New type of rigid airship.

- See Richmond, V. C: The hulls of rigid airships.

- See Van Nostrand, P. E.: Why airships?

Airways. Airways and landing facilities.

United States Air Service Information Circular, Vol. 5, No. 404 (Mar. 1, 1923), Washington, Government Printing Office, pp. 112, ill.

- Airways for New England.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), Naw York, pp. 10-11, map.

>- The beginning of a great development.

TJ. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, p. 33, ill.

- See Wright, Burdette S.: National airways.

- See Wright, Burdette S.: National airways coming.

Aitchison, Leslie. The development of aero-engine materials.

International Air Congress, London, 1923, Keport, London, 1923, pp. 485-498.

- See Bagnall-Wild, R. K.: Leslie Aitchison, A. A. Remington, A. J. Rowl-

edge, and W. A. Thain: Aircraft steels and material.

Alaska: See Patterson, T. T.: Camera to seek mythical lakes of Alaska.

Alayrac, A. Méthodes graphiques pour l'étude du vol horizontal et la détermination du plafond.

Aéronautiqua, 5e année, No. 51 (Aug. 1923), Paris, pp. 332-336, ill.

- La navigation et le rayon d'action.

L'Aérophile, 31a année. Nos. 19-22 (ler-15 oct.-ler-15 nov. 1923), Paris, pp. 305-307, 333-336, ill.

Alayhac, A. Note sur la résolution graphique des équations du vol horizontal et la détermination du plafond.

Bulletin Technique du Bureau Veritas, T. S, No. 9 (Sept. 1923), Paris, pp. 184-186, ill. International Air Congress, London, 1923, Report, London, 1923, pp. 381-387.

Albatros. The Albatros sporting types L—59 and L—60.

Flight, Vol. 15, No. 37 (Sept. 13, 1923), London, pp. 543-544, ill.

- Two new Albatros machines.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 4 (July 25, 1923), London, p. 104, diagr.

Alessandri. La radio au service de l'aviation.

La Tech. Aeron, 14e année, n. s. No. 22 (15 août 1923), Paris, pp. 712-720, ill.

Albxandrow, W. L. The theory of lattices applied to a propelling screw.

U. S. S. E. Scientific-Technical Department of the Supreme Council of National Economy, No. 50. Transactions of the Central Aero-Hydrodynamical Institute, No. 6, Moscow, 1924, pp. 18, ill.

Alparo, Heraclio. New type of flying machine—the Lacierva "autogiro."

Aviation, Vol. 14, No. 15 (Apr. 9, 1923), New York, pp. 397-398.

Allots. See Guillet, Léon: Récents progrés dans la fabrication et l'utilisation des alliages.

Alpax. See Fleury, R. de: L'Alpax.

Altitude. A convenient formula for altitude performance estimates.

Flight, Vol. 15, No. 48 (Nov. 29, 1923), London, p. 729.

- Flying at high altitudes.

Science, n. s. Vol. 58 (Oct. 5, 1923), Garrison, N. Y., pp. 10-12.

- See Colvin, Charles H.: Calculating altitudes for record purposes.

- See Filson, L. N. G. : The measurement of true height by aneroid.

- See M. L.: Le record du monde de hauteur en hydravion.

- See R. D.: Sadi-Lecointe bat son propre record de hauteur. Il monte à

11.145 mètres.

- See Warner, John A. C: An optical altitude indicator for night landing.

Altitude determination. See Brombacher, W. G.: The determination of the altitude of aircraft.

Altitude indicator. See Warner, John A. C: An optical altitude indicator for night landing.

Ambrosini, Antonio. Contribution au Droit aérien, étude d'une loi italienne sur la navigation aérienne.

Paris, Association Aérienne d'Aéro-technique, 1923.

- Législation et juridiction compétentes en matière de Navigation Aérienne

Internationale.

Eevue Juridique Internationale de la Locomotion Aérienne (mars-avril, 1923), Paris, pp. »7-101,145-152.

- Notion technico-juridique de l'aeromobile.

Revue Juridique Internationale de la Locomotion Aérienne (oct. 1923), Paris, pp. 449-455.

- Per la legge Italiana sulla navigazione aerea.

Atti Assoc. Ital. Aerotecn., 1923, Voi. 3, N. 1, Roma, 1923, pp. 41-68.

America. Airship progress in America.

Flight, Voi. 15, No. 16 (Apr. 19,1923), London, pp. 209-210, ill.

American Legion. Report of American Legion's air committee.

Aviation, Vol. 15, No. 22 (Nov. 20, 1923), New York, pp. 656-657, ill.

Ames, Joseph Sweetman. Aeronautics and scientific research.

TJ. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 29-30.

- Commercial flight.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, pp. 321-323, 380, 111.

- Recent aeronautic investigations and the aeroplane industry.

Journ. Frankl. Inst., Vol. 195, No. 2 (Feb. 1923), Philadelphia, pp. 145-163, ill. Nature, Vol. Ill, No. 2785 (Mar. 17, 1923), London, pp. 363-364, ill. (Substance of lecture before Franklin Institute, Nov. 23, 1922.)

- Relation between aeronautic research and aircraft design.

Flight, Vol. 15, No. 23 (June 7, 1923), London, pp. 307-310, diagrs.

Journ. Eoy. Aer. Soc, Vol. 27, No. 152 (Aug. 1923), London, pp. 381-404, 111.

Nature, Vol. Ill, No. 2785 (Mar. 17, 1923), London, p. 371. (Announcement that Dr. Ames will deliver Wilbur Wright Memorial Lecture of Royal Aeronautical Society and the above title as bis subject).

AMUNnsEN. See Arctic flight: U. S. Navy to participate in Amundsen polar flight.

Andres, S. A. See Ekholm, Nils, och G. V. E. Svedenborg: S. A. Andres ballongfärd mot nordpolen 11/7 1897.

Andrews, W. V. The purchase of airplanes, supplies, and equipment.

U. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, pp. 42-43.

Angle, Glenn D. A new process of steel cylinder construction.

Aviation, Vol. 15, No. 27 (Dec. 31, 1923), New York, pp. 794-795, diagr.

- Welded steel cylinder water jackets.

Aviation, Vol. 15, No. 6 (Aug. 6, 1923), New York, pp. 148-152, ill.

Angstrom, Tord. Some technical problems and experiences concerning winter flying.

International Air Congress, London, 1923, Report, London, 1923, pp. 622-624.

Antiaircraft defense. See Defense: Antiaircraft defense. Compiled by the officers of the First antiaircraft Battalion, C. A. C.

Antilli, C. Lo stato attuale degli studi sulla fotogrammetria aerea.

Riv. di Artiglieria e Genio, Roma, 1922, Vol. 3.

Anxionnaz, R. Le vol à voile.

La Techn. Aéron., 14e année, n. s. No. 15-17 (15 jan.-15 mars. 1923), Paris, pp. 461-467, 498-504, 539-547, ill.

Aracena, Diego. Across South America by the air route.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, p. 336.

Archaeology. See Crawford, O. G. S.: Air survey and archaeology. Arctic. See Mittelholzer, W. : Flying in the Arctic. Arctic flight. U. S. Naval Air expedition into the Arctic.

Aviation, Vol. 15, No. 25 (Dec. 17, 1923), New York, pp. 748-749.

- U. S. Navy to participate in Amundsen polar flight.

Aviation, Vol. 15, No. 21 (Nov. 19,1923), New York, p. 631, ill.

Armaments. Aerial ' armaments.

Aviation, Vol. 15, No. 3 (July 16,1923), New York, p. 65.

Armstrong, Douglas B. Air post stamps.

Flight, Vol. 16, No. 35 (Aug. 30, 1923), London, p. 624.

61287—26-2

Abmstbong, E. R. The airplane patent situation.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 41-42.

- Commercial ocean transit by airplane.

Aviation, Vol. 14, No. 23 (June 4, 1923), New York, pp. 602-606, ill., map.

Abnoud. L'avion sans queue.

L'Aérophile, 31e année. Nos. 1-2 (ler-15 Jan. 1923), Paris, p. 24.

Ashley, L. P. Youthful gliding experiments conducted ten years ago.

U. S. Air Service, Vol. 8, No. 10 (Oct. 1923), Washington, p. 46.

Aspect ratio. The effect of aspect ratio variation upon the slope of the lift curve of an aerofoil.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, p. 20.

Atkinson, J. See Detroit: J. Atkinson wins Country Club of Detroit trophy race.

Atmosphere. See Baldit, Albert: Sur les mouvements ondulatoires de l'atmosphère et leur utilisation par l'aviation sans moteur.

- See Burzio, Filippo: Theorie délia dinámica atmosférica.

Atmospheric electricity. See Lemoine, Jean: Les accidents de la Coupe Gordon-Bennett des ballons et l'électricité atmosphérique.

Attack recorder. See Reid, H. J. E.: The N. A. C. A. recording tachometer and angle of attack recorder.

Aumont-Thiéville. See Musset, Paul: La Coupe Aumont-Thiéville.

Australia. Australia's air-mail services.

Industrial Australian and Mining Standard, Vol. 69, No. 1794 (Apr. 19, 1923), Melbourne, pp. 616-617, ill.

- Aviation in Australia.

The Aeroplane, Vol. 25, No. 21 (Nov. 21,1923), London, pp. 504-506.

Australia, Parliament, Joint Committee of Public Accounts. Report from the Joint Committee of Public accounts on the expenditure upon air services.

Melbourne, printed and published for the Government of Commonwealth of Australia by A. J. Mullett, government printer for the State of Victoria, 1923, pp. 17.

Autogira. A new type of flying machine.

Engineer, Vol. 135, No. 3520 (June 15,1923), London, p. 629.

Autooibo. More about about La Cierva "Autogiro."

Flight, Vol. 15, No. 38 (Sept. 20, 1923), London, p. 557, III.

Autbán, E. de. See Bardin, R.: El motor de explosión aplicado a la aviación. Traducción del francés por E. de Autrán.

Auvergne. Annuaire de l'Aéro-Club d'Auvergne (Année 1923). 1923, ill.

Aviation. Twenty years of aviation.

World's Work, Vol. 45 (Mar. 1923), Garden City, N. Y., pp. 469-470, ill.

- What the various countries are doing in aviation.

Literary Digest, Vol. 77 (May 12, 1923), New York, pp. 74-76.

- See Painlevé, Paul; Emile Burel et Ch. Maurain: L'aviation.

Aviators. See Jones, Keith: Easier physical tests urged.

- See Munro, D.: Guiding principles in the medical selection and care of

aviators.

Avro. The Avro "Aldershot" bomber.

Aviation, Vol. 14, No. 10 (Mar. 5, 1923), New York, p. 275, ill.

- The Avro biplane, type 558. 500 c. e. Douglas engine.

Flight, Vol. 15, No. 40 (Oct. 4, 1923), London, pp. 604-607, ill., diagr.

- The Avro light monoplane, type 560. 700 c. c. Blackburne engine.

Flight, Vol. 15, No. 40 (Oct. 4, 1923), London, pp. 607-609, ill., diagr.

- Rigging notes. Avro biplane, type 504 K. (100 horsepower Monosoupape).

Air Publicaton 916 (Amendment List No. 1). 1st June 1923. London, 1923, 424675/23, [p. H.

Avro-Napier. See Robertson, F. A. de V.: The 1,000 H. P. Avro-Napier bomber.

Avus. Das Avus-Rennen und seine Fahrzeuge.

Motorwagen, Bd. 26, No. 29-30 (Oct. 20, 31, 1923), Berlin, pp. 431-432.

B

Babey, Bernard. Le Bureau Veritas. Son intervention dans le contrôle du matériel aéronautique navigant en France.

Revue Juridique Internationale de la Locomotion Aérienne (sept. 1923), Paris, pp. 401-412.

Babson, Roger W. Possibilities for aircraft.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 326.

Bacon, David Leonard. The distribution of lift over wing tips and ailerons.

National Advisory Committea for Aeronautics, Report No. 161, Aug. 14, 1923, Washington, Government Printing Office, 1923, pp. 24, ill., diagrs.

- Model supports and their effect on the results of wind tunnel tests.

National Advisory Committee for Aeronautics, Technical Notes No. 130, February, 1923, Washington, pp. 7, tabls., diagrs. Flight, Vol. 15, No. 51 (Dec. 20, 1923), London, pp. 768-770.

Bacon, E. F. Bamberg speed-measuring station.

U. S. Air Service Information Circular, Vol. 4, No. 397 (Feb. 15, 1923), Washington, Government Printing Office, pp. 7, ill.

Bacon, John L. The city of a thousand planes. San Diego.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, pp. 315-316, 373, ill.

Baeumker, A. Der deutsche Segelflug im vergangenen Sportjahre und seine künftigen Ziele.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 17 (Nov. 21, 1923), Berlin, pp. 147-150.

Baqnall-Wild, Ralph Kirby, Leslie Aitchison, A. A. Remington, A. J. Rowledoe, W. A. Thain. Aircraft steels and material. London, Constable & Co., Ltd., 1923, pp. vii, 209, ill.

Baillaud, R. Le problème du repérage des aéronefs au son. Travaux exécutés sous la direction du général Ferrie. Paris, 1922, pp. 48.

Bailly, Le. See Bertrand, J. : Les coefficients de sécurité et l'aviation.

Bairstow, L. The fundamentals of fluid motion in relation to aeronautics. International Air Congress, London, 1923, Report, London, 1923, pp. 239-245.

- The low-power aeroplane or aviette.

Nature, Vol. Ill, No. 2794 (May 19, 1923), London, pp. 672-673.

- The Third Air Conference.

Nature, Vol. Ill, No. 2781 (Feb. 17, 1923), London, pp. 238-23».

Baker, C. Alma. Ninety-four gift battleplanes which fought in the Great War, August 4, 1914, to November 11, 1918, presented to His Majesty's Imperial Government, Australia forty-one, Malaya fifty-three, sixteen of which were presented direct by His Highness, the Sultan of Jahore, and one by His Highness, the Sultan of Kedah.

London, Printed at the Field press, 1921, pp. 148, ill.

Baker, G. S. Ten years' testing of model seaplanes.

Journ. Roy. Aer. Soc, Vol. 27, No. 149 (May 1923), London, pp. 224-243, ill.

Baldit, Albert. Études élémentaires de météorologie pratique.

Paris, Gauthier-Villars et Cie., 1923, pp. ii-340, ill. 2» edition revue et augmentée.

- Sur les mouvements ondulatoires de l'atmosphère et leur utilisation par

l'aviation sans moteur.

C. R. Aoad. Sei., T. 176, No. 2 (8 Jan., 1923), Paris, pp. 120-122.

Baldwin, Thomas Scott. See d'Orcy, Ladislas: The passing of a great aeronautical pioneer.

Ball, Daist Elizabeth. Woman's part in aviation.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, p. 25.

Ballenstedt, L. Influence of ribs on strength of spars.

National Advisory Committee for Aeronautics, Technical Notes No. 139, May 1923, Washington, pp. 18, tabls., diagrs.

Balloon fabrics. See Niedner, J.: Die wichtigsten Prüfmethoden, Ballonstoffe auf Gasdurchlässigkeit zu untersuchen, und der Vergleich der mit ihnen gesonnenen Resultate.

Balloons. Free balloon without top valve.

Scient. Amer., Vol. 129 (Oct. 1923), New York, p. 242.

- Hysterical demands for prohibition of free ballooning.

U. S.- Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, p. 10.

- New type of spherical balloon.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, p. 151.

- See Lafon, Charles: Etude sur le ballon captif et les aéronefs marins.

Ballotj, S. Airplane and coast defense.

Outlook, Vol. 135 (Oct. 24, 1923), New York, pp. 313-314.

Baltic States. On aircraft trade in the Baltic States.

The Aeroplane, Vol. 24, No. 9 (Feb. 28, 1923), London, p. 151.

Bamberg. See Bacon, E. F.: Bamberg speed-measuring station.

Barbot, M. Barbot's cross-channel flight. *

The Aeroplane, Vol. 24, No. 19 (May 9, 1923), London, p. 352.

Barbot, Georges. See Blanchet, Georges: Aviateurs contemporains. Georges Barbot.

Bardin, R. El motor de explosión aplicado a la aviación. Traducción del francés por E. de Autrán. ' '

Madrid, 1923, pp. 162.

Barker, M. Theoretical streamlines round a Joukowsky aerofoil:

Aer. Res. Com. Reports and Mem. No. 788 (Ae. 45), (Dec. 1921), London, 1922, pp. 8, diagr.

Barling. The Barling bomber.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 249, 284, ill.

- The Barling bomber. An American six-engined giant.

Flight, Vol. 15, No. 50 (Dec. 13, 1923), London, pp. 749-751, ill.

Barling. Barling bomber is ready forjjtrial flights.

Aviation, Vol. 15, No. 2 (July 9, 1923), New York, pp. 38-10, ill.

- Barling bomber successfully flight tested.

Aviation, Vol. 15, No. 10 (Sept. 3, 1923), New York, p. 281, ill.

- Initial flight of the Barling bomber.

U. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, p. 17.

Barlino, W. H. The largest aeroplane.

Engineer, Vol. 135, No. 3521 (June 22, 1923), London, p. 657.

Barlow, T. M. Experimental determination of aircraft stability.

International Air Congress, London, 1923, Report, London, 1923, pp. 308-319, diagrs.

Barron, Clarence W. Aviation development.

Aeronautical Digest, Vol. 3, No. G (Dec. 1!)23\ New York, pp. 391-392.

Bahrt, P. J. Limitations of aerial surveying outlined.

Canadian Engineer,"Vol. 44, No. n (Feb. 6, 1923), Toronto, pp. 197-199, ill.

Bassett, P. R. Night flying.

U. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 23-27, ill.

Bateman, H. The inertia coefficients of an airship in a frietionless fluid.

National Advisory Committee for Aeronautics, Report No. 164, June 7, 1923, Washington, Government Printing Office, 1923, pp. 16, ill.

- See Fraser, R. A., and H. Bateman :. Experiments on rigid airship R. 38

(Z. R. 2).

- See Pannell, J. R., R. A. Frazer, and H. Bateman: Experiments on rigid

airship R. 32. Part I: Pressures on the upper fin and rudder.

- See Pannell, J. R., R. A. Frazer, and H. Bateman: Experiments on rigid

airship R. 32. Part II: Controllability and turning trials.

- See Pannell, J. R., R. A. Frazer, and H. Bateman: Experiments on rigid

airship R. 32. Part III: Measurements of resistance and airspeed.

- See Frazer, R. A., and H. Bateman: Experiments on rigid airship R. 32.

Part IV: Note on measurements of airscrew thrust.

- See Simmons, L. F. G., and H. Bateman: An investigation of the wind

forces and moments acting on models, l/50th scale, of the Caquot kite balloon.

Batigne, Jacques. La réglementation de la circulation aérienne en Suisse.

Eevue Juridique Internationale de la Locomotion Aérienne (déc. 1923), Paris, pp. 545-568.

- De la responsabilité des compagnies de navigation aérienne dans les

accidents.

Paris.

Batson, A. S., and C. N. H. Lock. Lateral control at large angles of incidence. Yawing and rolling moments due to aileron movement on a complete model of S. E. 5A.

Aeronautical Research Committee Reports and Mem. No. 773 (Mar. 1921), London, 1922, pp. 15, tahls.

Batson, A. S., and H. L. Nixon. Pressure distribution over the wings of, and force measurements on, a model B. E. 2-C biplane with raked wing tips. Aeronautical Research Committee, No. 891, May 1923, pp. 31, ill.

Batson, A. S. See Irving, H. B., and A. S. Batson: On the effect of side slip on the aerodynamic forces and moments (including those due to the controls) for a model S. E. 5a aeroplane.

Batson, A. S. See Irving, H. B., and A. S. Batson: Some experiments on a model biplane having slotted wings, with particular reference to the improvements of lateral control at low speeds.

Batson, Reginald George Ctril, and J. H. Hyde. Mechanical testing; a treatise.

London, Chapman & Hall, vol. 1, pp. siii, 413, 1922; vol. 2, pp. xi, 446, 1923.

Batteries. See Vinal, G. W.: Batteries for airplane service.

Batjdry de Saunier. Initiation à la T. S. F. Paris, 1923, pp. 285, ill.

Baulin, K. Experimental study on air channels.

U. S. S. R. Scientific-Technical Department of the Supreme Council of National Economy, No. 62. Transactions of the Central Aero-Hydrodynamical Institute, No. 7, Moscow, 1924, pp. 27, ill.

Baumann, Richard. Determination of the value of wood for structural purposes.

National Advisory Committee for Aeronautics, Technical Notes No. 138, Apr. 1923, Washington, pp. 10, ill., tabls.

Baumgarten, F. F. Berlin to London by air.

Living Age, Vol. 318 (Aug. 11, 1923), Boston, pp. 260-262.

Baumhauer, A. G. von, and C. Koning. On the stability of oscillations of an aeroplane wing.

International Air Congress, London, 1923, Report, London, 1923, pp. 221-238, ill., tahls., diagrs.

Baumhauer, A. G. von. Proposal for standardisation of the methods of computing wing sections.

International Air Congress, London, 1923, Report, London, 1923, pp. 38-42.

Bawly, Ir. I. Het nuttig effect der moderne snelloopende explosiemotoren. Amsterdam, 1922.

Beach, B. S. Oxygen booster will aid in new altitude flight.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 321, ill.

Beach, E. A. La construction métallique de Dornier et de Junkers. Aéronautique, T. 5, No. 51 (Aug. 1923), Paris, pp. 319-327, ill.

Beach, Stanley Yale. Some achievements in soaring flight. U. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, p. 16.

Bearings. See Adams, Walter L.: Machining half bearings for airplane motors.

Beaumont. The coupe Beaumont.

The Aeroplane, Vol. 25, No. 19 (Nov. 5, 1923), London, p. 460, ill.

Béchereau, L. Le vol à voile dans le vent horizontal à rafales.

La Techn. Aëron., 14e année, n. s. No. 15 (15 Jan. 1923), Paris, p. 468, ill.

Béhague, Pierre. Les réactions psychomotrices—leurs mesures—leurs causes d'erreur—leurs buts.

L'Aérophile, 31e année, Nos. 5-6 (lcr-15 mars 1923), Paris, pp. 80-85, ill.

- See Brichambaut, Perrin de, et Pierre Béhague: Malaises des aviateurs.

Belgium. Belgisches Gesetz über die Gründung einer Aktiengesellschaft zum Betribe des Luftverkehrs.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 34-35 (26 Aug.-2. Sept. 1923), Berlin, pp. 361-363, 369-371.

- See Renard, A. : Un avion belge.

Bell, A. H. See Jones, R., D. H. Williams, and A. H. Bell: Experiments on model of a rigid airship of new design.

Bell, A. H. See Jones, R., D. H. Williams, and A. H. Bell: Experiments on a model of rigid airship R. 32, together with a comparison with the results of full-scale turning trials and a consideration of the stability of the ship.

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

the hull of airship R. 33.

- See Jones, R., and A. H. Bell: The resistance of a spheroid, with special

reference to the effect of wires placed around the model in a plane at right angles to the axis.

Bellini, E. Characteristics of airplane antennas.

Wireless Age, Vol. 11, No. 2 (Nov. 1923), pp. 54-55, ill. Translated from Radio-Revue, Paris.

Benn, Wedgewood. Air force.

Contemporary Review, Vol. 124, No. 692 (Aug. 1923), New York, pp. 166-175.

Bennewitz, Kurt. Aeronautical instruments.

National Advisory Committee for Aeronautics, Technical Notes No. 145, June 1923, Washington, pp. 13, ill.

- Flugzeuginstrumente.

1922, pp. 324, ill.

Benoit. Les hydravions modernes.

La Techn. Aéron., 14e année, n. s. No. 15-16 (15 jan.-15 fév. 1923), Paris, pp. 469-477, 505-512,

m.

- Record d'altitude du Lieutenant Benoit.

L'Aérophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris, p. 69.

Berget, A. Problèmes de l'atmosphère.

Paris, 1922, pp. 340, ill.

Bernasconi, Mario. See Constanzi, Giulio, e Mario Bernasconi: Exponentia law of variation of drift and lift models of airplanes and wings at various velocities.

- See Costanzi, Giulio, e Mario Bernasconi: Sulla variazione della portanza

e della resistenza dei modelli di aeroplani e di ali col variare della velocità.

Bernhardt, Sarah. See R. L.: Sarah Bernhardt aéronaute.

Bertrand, J. Les coefficients de sécurité et l'aviation.

L'Aérophile, 31e ennée, Nos. 3-4 (ler-15 fév. 1923), Paris, pp. 49-50.

- La construction automobile et l'aviation.

Paris, 1923.

Besançon, Georoes. L'année aéronautique 1922. Rapport présenté à l'Assemblée générale de l'Aéro-Club de France, du 28 avril 1923.

L'Aérophile, 31e année, Nos. 9-10 (ler-15 mai 1923), Paris, pp. 144-152, ill.

- Les chevaliers de l'air.

L'Aérophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, p. 211, part.

- Un livre va paraître: "L'aviation et la sécurité française."

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, pp. 323-326. Review of the work by René Fonck.

Besson. The Besson commercial seaplane.

Engineer, Vol. 136, No. 3535 (Sept. 28, 1923), London, pp. 346-347, ill.

- L'hydravion quadruplan Besson.

L'Aérophile, 31e année, Nos. 7-8 (ler-15 avril 1923), Paris, p. 114, ill.

- The Marcel Besson H-5 quadruplane flying boat.

Flight, Vol. 15, No. 7 (Feb. 18, 1923), London, pp. 89-90, ill.

Best, Arnold. Airships.

Proceedings of the Institution of Mechanical Engineers, No, 1 (Jen, 1923), pp. 47-53.

Betts, Annie D. The effect of variable gearing on aeroplane performance. Journ. Roy. Aer. Soc, Vol. 27, No. 15S (Not. 1923), London, pp. 557-560.

Betz, Albert. See Göttingen. Aerodynamische Versuchsanstalt: Ergebnisse der Aerodynamische Versuchsanstalt zu Göttingen.

Bibliography. Articles on aeronautics.

Library Journal, Vol. 48 (Sept. 1, 1923), New York, p. 705.

- Bibliotheca aeronautica.

London, Maggs Bros., 1923, Part 1, pp. 170, Part 2, pp. 156, ill.

- Reports and Memoranda of the Aeronautical Research Committee published between 1st October, 1921, and 31st March, 1923.

Aeronautical Research Committee, Reports and Memoranda, No. 850, May 1923, London, 1923, pp. 7.

- See Brockett, Paul: Bibliography of aeronautics, 1917-1919.

Bienen, T. See Klemperer, W., and T. Bienen: Comparing aerodynamical properties of wings.

Bingham, Kathleen E., and John L. Haughton. The constitution of some alloys of aluminium with copper and nickel.

Aeronautical Research Committee, Reports, and Memoranda, No. 843 (M. IS), Dec. 1922, London, 1923, pp. 36, ill., tabls.

BiRn plight. See Hart, Ivor B.: Leonardo da Vinci's manuscript on the flight of birds.

- See Nordmann, Charles: Sur le mécanisme du vol à voile et la morphologie

des oiseaux voiliers.

Birdseye, C. H. Aerial mapping by the Geological Survey.

Aerial Age, Vol. 16, No. 5 (May 1923), New York, pp. 230-232.

Birge, Arthur B. Progress of construction work on St. Louis field.

Aviation, Vol. 15, No. 11 (Sept. 10, 1923), New York, pp. 307-308, ill.

Birnbaum, W. Die tragende Wirbelfläche als Hilfsmittel zur Behandlung des ebenen Problems der Tragflügeltheorie.

Zeitschrift für angewandte Mathematik und Mechanik, Bd. 3, No. 4 (Aug. 1923), Berlin, pp. 290-297, ill.

Biskra. Le vol à voile. Le meeting de Biskra. (25 janvier au 20 février.)

L'Aérophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris, pp. 67-69, ill.

- See Brocard: Les expériences de Biskra.

Bissell, Clayton L. See Mitchell, William, Clayton L. Bissell, and Alfred Verville: Report of inspection trip to France, Italy, Germany, Holland, and England, made during the winter of 1921-22; technical supplement.

Black, Archibald. Aerial express service will demand special plane designs. Automotive Industries, Vol. 49, No. 2 (July 12, 1923), New York, pp. 68-70, ill.

Black, Archibald, and Donald R. Black. The commercial possibilities of the airplane.

American Society of Mechanical Engineers. Advance paper for meeting Dec. 3-6, 1923, pp. 5, ill.

Black, Archibald. Landing field roads and runways.

Aeronautical Digest, Vol. 2, Nos. 4-5 (Apr-May, 1923), New York, pp. 253-254, 292, 330-331, 382.

- Low operating cost is essential to commercial planes.

Automotive Industries, Vol. 48, No. 23 (June 7, 1923), pp. 1232-1234, ill.

- Maintenance and operating equipment of airplane and seaplane stations.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 15-19, 40, ill.

Black, Archibald. Night flying equipment.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 431-433, 457, ill.

Black Archibald and Donalh R. Black. Proposed landing field nomenclature. Aviation, Vol. 14, No. 7 (Feb. 12, 1923), New York, pp. 188-189.

Black, Archibald. Putting the city on the airline.

American City, Vol. 29 (Aug. 1923), New York, pp. 129-132, plans. Literary Digest, Vol. 78 (Sept. 8,1923), New York, pp. 25-26.

- Repair equipment of airplane and seaplane stations.

American Machinist, Vol. 58, No. 10 (Mar. 8,1923), New York, pp. 373-379, ill.

- Safety and comfort chief essentials in passenger airplane design.

Automotive Industries, Vol. 43, No. 24 (June 14, 1923), New York, pp. 12S4-1287, ill.

- Selection of airplane landing fields.

Aeronautical Digest, Vol. 2, No. 1 (Jan. 1923), New York, pp. 11-14.

- Special requirements of seaplane bases.

TJ. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 35-37, diagr.

Black, Donald R. See Black, Archibald, and Donald R. Black: The commercial possibilities of the airplane.

- See Black, Archibald, and Donald R. Black: Proposed landing field nomenclature.

Blackburne. Engines for light aeroplanes. The Blackburne 697 c. c. engine.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 21 (May 23, 1923), London, p. 382, diagr.

Blake, Wilfrid THEOnoRE. Flying.

London, G. Allen & Unwin Ltd., 1923, pp. 221, ill.

- Flying round the world.

London, Heath, Cranton Ltd., [1923], pp. 238, ill.

- Some difficulties in flying round the world.

Geographical Journal, Vol. 61, No. 4 (Apr. 1923), London, pp. 273-279, ill.

- A transatlantic airship service.

Discovery, Vol. 4, No. 45 (Sept. 1923), London, pp. 227-230, ill.

Blanchet, Georges. Aviateurs contemporains. Fernaud Laporte.

L'Aérophile, 31e année, Nos. 17-18 (ler-15 sept. 1923), Paris, pp. 257-258, port.

- Aviateurs contemporains. Georges Barbot.

L'Aérophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 193-194, port.

- Aviateurs contemporains. Joseph Thoret.

L'Aérophile, 31e année, Nos. 7-8 (ler-15 avril 1923), Paris, pp. 97-98, port.

- Aviateurs contemporains. Le Colonel Félix Marie.

L'Aérophile, 31e année, Nos. 23-24 (ler-15 déc. 1923), Paris, pp. 353-354, port.

- Aviateurs contemporains. Le Commandant Brocard.

L'Aérophile, 31e année, Nos. 11-12 (ler-15 juin 1923), Paris, pp. 161-162, port.

- Aviateurs contemporains. Lucien Coupet.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 oct. 1923), Paris, pp. 289-290, port.

- Aviateurs contemporains. René Labouchère.

L'Aérophile, 31e année, Nos. 3-4 (ler-15 fév. 1923), Paris, pp. 33-34, port.

- Aviateurs et aéronautes contemporains. Louis Hirschauer.

L'Aérophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris, pp. 65-66, port.

- Aviateurs et aéronautes contemporains. Pierre Gasnier du Fresne.

L'Aérophile, 31e année, Nos. 15-10 (ler-15 août 1923), Paris, pp. 225-220, port.

- Le Commandant Destrem.

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, pp. 321-322, port.

Blanchet, Georges. Le sesquiplan de reconnaissance F. K. 31.

L'Aérophile, 31e année. Nos. 1-2 (ler-15 Jan. 1923), Paris, pp. 27-28, ill.

- Une étoile dans la nuit.

L'Aérophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris, p. 79.

Blasius, H. Determination of climbing ability.

National Advisory Committee for Aeronautics, Technical Notes No. 166, November 1923, Washington, pp. 16, diagrs.

Blériot. An unorthodox French commercial aeroplane The Blériot 115, with four Hispano engines.

Plight, Vol. 15, No. 28 (July 12, 1923), London, pp. 381-384, ill.

- See Bertrand, J.: Les coefficients de sécurité et l'aviation.

- See R. D.: Le biplan de transport quadrimoteur Blériot type B-115.

BLÉRiOT-SpAn. Un nouvel avion de chasse Blériot-Spad.

L'Aérophile, 31e année, Nos. 7-8 (ler-15 avril 1923), Paris, p. 98, ill.

Blessinq, Arthur R. The development of air power policy.

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, pp. 165-168, 181, ill.

Blume, Walter. Description of the Hannover glider Vampyre.

Aviation, Vol. 15, No. 9 (Aug. 27, 1923), New York, pp. 238-241, ill.

Blumenthal, O. Calculations for a single-strut biplane with reference to the tensions in the wing bracing.

National Advisory Committee for Aeronautics, Technical Notes No. 143, June 1923, Washington, pp. 28, tabls., diagrs.

Blythe, P. R. The Aero Club of Germany.

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, pp. 163-164.

- The aeronautical situation in Germany.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 257, 292, ill.

- Aviation developments in Europe. •

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 425-426.

■- The parade among the clouds.

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, pp. 165-166, 196.

Boeing. Boeing pursuit ship.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, p. 425, ill. U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, pp. 40-41, ill.

■ Boerner. See Schwengler, H.: Das projekt des Boerner-Luftschiffes und seine Eignung für den Ueberseeverkehr.

Boll weevil. See Agriculture: Fighting boll weevil by means of airplane.

Bombing. Aircraft bombing trials off Portsmouth.

Flight, Vol. 15, No. 33 (Aug. 16, 1923), London, pp. 499-500.

■- Bomb dropping for coast defence; a vital force for Britain.

Illustrated London News, Vol. 162, No. 4381 (Apr. 7, 1923), London, pp. 551-554.

- United States aerial bombing tests on battleships.

Flight, Vol. 15, No. 43 (Oct. 25, 1923), London, p. 657, ill.

- See Estoppey, George: Bombing moving ships.

Bombs. See Stevens, Frederick: A constant pressure bomb.

Bossoutrot, Lucien, et Louise Faure-Favier. La belle aventure du "Goliath."

Paris, 1922, pp. 124, ill.

Boston. Official inauguration of Boston air port.

Aviation, Vol. 15, No. 12 (Sept. 17, 1923), New York, pp. 335-336.

- See Oldys, Robert: Formal dedication of the Boston air port.

Bothezat, Georoe de. The De Bothezat helicopter.

Aviation, Vol. 14, No. 24 (Juna 11,1923), New York, p. 645. Flight, Vol. 15, No. 9 (Mar. 1, 1923), London, p. 125, ill.

Intarnational Air Congress, London, 1923, Report, London, 1923, pp. 396-399, ill.

- The helicopter.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), Naw York, p. 23, ill.

- New trials of De Bothezat helicopter.

Aviation, Vol. 14, No. 21 (May 21, 1923), New York, p. 562, ill.

- Successful helicopter trials at McCook Field. The De Bothezat helicopter

lifts 3,600 pounds with 170 horsepower.

Aviation, Vol. 14, No. 4 (Jan. 22, 1923), New York, p. 97, ill.

- See Gerhardt, W. F.: The De Bothezat barograph, type "A."

Bottasse, H. Gyroscopes et projectiles.

Bibliothèque Scientiflqua de l'ingénieur et du physicien, Paris, Ch. Delagrave, 1923, pp. 430.

Boulton and Paul. Boulton and Paul metal aeroplanes.

Tha Aaroplana, Vol. 25, No. 23 (Dec. 5,1923), London, pp. 548-550, diagr.

- Metal construction at Boulton and Paul's.

Tha Aeroplane, Vol. 25, No. 22 (Nov. 28, 1923), London, pp. 528-530, diagr.

Boulton and Paul "Bodmin." The Boulton and Paul "Bodmin" an exceptionally interesting British all-metal machine.

Flight, Vol. 15, No. 36 (Sept. 6,1923), London, pp. 528-533, ill.

Boyce, J. C. Decays and discoloration in airplane woods.

U. S. Dept. Agrl. Bull. 1128 (1923), Washington, Government Printing Office, pp. 52, ill.

Bradfield, F. B. Lateral control of Bristol fighter at low speeds. Measurement of rolling and yawing moments of model wings due to rolling.

Aeronautical Research Committea Reports and Memoranda No. 787 (Ae. 44) (Jan. 1921), London, 1922, pp. 23, ill., tabls., diagrs.

- On the use of a slotted trailing flap on aerofoils of various cambers.

Aeronautical Research Committea Reports and Memoranda No. 865 (Ae. 102), Jan. 1923, London, 1923, pp. 9, tabls., diagrs.

Bradfield, F. B., and O. E. Simmonds. Rolling and yawing moments due to roll of model Avro wings, with standard and interplane ailerons, and rudder moments for standard and special large rudder.

Aaronautical Research Committea Reports and Mamoranda No. 848 (Aa. 91), Nov. 1922 London, 1923, pp. 12, tabls., diagrs.

Bradfield, F. B. Tests of four slotted aerofoils, supplied by Messrs. Handley Page, Ltd.

Aeronautical Research Committea Reports and Memoranda No. 835 (Ae. 85) (Sept. 1922), London, 1923, pp. 16, tabls.. diagrs.

Bradshaw. Cycle engines for light planes. The Bradshaw 500 c. c. Oil-cooled.

Flight, Vol. 15, No. 18 (May 3,1923), London, pp. 240-241, ill.

- Engines for light aeroplanes. The 500 c. c. Bradshaw.

Aar. Eng. Suppl. Tha Aeroplane, Vol. 24, No. 24 (June 13, 1923), London, p. 444, diagr.

Brahm, Alcanter de. La collection Nadar.

L'Aérophila, 31a annéa, Nos. 15-16 (ler-15 août 1923), Paris, pp. 238-243, ill.

Brancker, William Sefton. Air transport and its future importance to the Empire. (Read Wednesday, November 14, 1923.)

Transactions, Manchestar Statistical Society, Sassions 1922-23, 1923-24, London, pp. 1-28, 3 charts.

- The position of air transport to-day.

The Aeroplane, Vol. 24, No. 6 (Feb. 7, 1923), London, pp. 98-104. Flight, Vol. 15, No. 7 (Feb. 15, 1923), London, pp. 91-94.

Branham, J. C. The new wind tunnel at McCook Field.

Aerial Age, Vol. 16, No. 6 (June 1923), New York, p. 291.

Brearley, Harry Chase. Certifying aircraft and pilots. Underwriters' Laboratories. A symbol of safety.

New York, Doubleday, Page & Co., 1923, pp. 221-234.

Brebera, A. Hangars auf dem staatlichen Flugplatz in Kbel bei Prag.

Beton und Eisen, Bd. 22, No. 17-19 (Sept. 15, Oct. 5, 1923), Berlin, pp. 219-220, 239-241, ill.

Bredow, Traugott, und Fritz Müller. Das Luftverkehrsgesetz vom 1. August 1922.

1922, pp. xii, 376.

Breguet, Louis. Note sur la détermination de l'indice d'essai statique des avions de transport déduit de l'action dynamique d'une houle aérienne.

International Air Congress, London, 1923, Report, London, 1923, pp. 638-646. ' L'Aérophile, 31e année, Nos. 7-S (ler-15, avril 1923), Paris, pp. 102-106.

Breguet, Louis, et René Devillers. Le problème de la stabilité des avions.

Technique Moderne, T.-16, No. 19 (Oct. 1, 1923), Paris, pp. 577-582, ill.

Brennan. The Brennan helicopter.

Aviation, Vol. 14, No. 15 (Apr. 9, 1923), New York, p. 400.

Brereton, L. H France, master of the air.

U. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, pp. 7-11, ill.

Brett, George H. History of Crissy Field.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, p. 24, ill.

Brichambaut, Perrin de, et Pierre Béhague. Malaises des aviateurs.—Leurs causes.—Leurs explications.—Leurs remèdes.—Conseils d'hygiène. Paris, Qauthier-Villars, 1923, pp.

Bridgman, Leonard. The exhibits at Gothenburg.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, Nos. 7-8 (Aug. 15-22, 1923), London, pp. 183-188, 209-213, ill.- Impressions of the Gothenburg flying week.

The Aeroplane, Vol. 25, No. 8 (Aug. 22, 1923), London, pp. 203-206, ill.

Brinker, J. And now they'll fly by night.

Collier's, Vol. 72 (Aug. 18, 1923), New York, pp. 20-21,11].

Bristol. The Bristol "Cherub" engine.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 10 (Mar. 7, 1923), London, pp. 176-178, ill.

- Bristol "Cherub" engine for small aircraft.

Aviation, Vol. 14, No. 12 (Mar. 19, 1923), New York, p. 321, ill.

- The "Bristol" Cherub fiat twin aero engine

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, pp. 176, 181, ill.

- The Bristol "Cherub" flat twin aero engine; 18 horsepower at 2,500

revolutions per minute.

Flight, Vol. 15, No. 9 (Mar. 1, 1923), London, pp. 117-119, ill.

- The Bristol' "Cherub's" type test.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 22 (May 30, 1923), London, p. 400.

- A Bristol "Jupiter" makes history in France. Ober 223 m. p. h. in

Gourdou-Lesseurre monoplane.

Flight, Vol. 15, No. 45 (Nov. 8, 1923), London, pp. 681-682, ill.

- The Bristol "Jupiter's" new record (150 hours).

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 18 (May 2, 1923), London, pp. 326-328, ill.

- The "Bristol" Lucifer school machine.

Flight, Vol. 15, No. 30 (July 26, 1923), London, p. 435, ill,

Bristol. The Bristol three-seater airplane.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 140-141 ill.

- Bristol three-seater 100-horsepower touring airplane.

Aviation, Vol. 14, No. 10 (Mar. 5, 1923), New York, p. 273, ill.

British Engineering Standards Association. British standard glossary of aeronautical terms.

London, published for the association by C. Lockwood & Son, 1923, pp. 123, ill. (Report No. 185.)

Brocard. Les expériences de Biskra.

L'Aérophile, 31e année, Nos. 7-8 (ler-15 avril 1923), Paris, pp. 109-114, ill.

- See Blanchet, Georges: Aviateurs contemporains. Le Commandant

Brocard.

Brockett, Paul. Bibliography of Aeronautics, 1917-1919.

National Advisory Committee for Aeronautics, Washington, Government Printing Office, 1923, pp. 494.

Brombacher, W. G. The determination of the altitude of aircraft.

Journal of the Optical Society of America, Vol. 7, No. 9 (Sept. 1923), Menasha, Wis., pp. 719-724, ill.

Beown, Elmer J. Aerial activities in Seattle.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, p. 317.

Brown, Fay C. Aviation work of the Bureau of Standards

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 115-119, ill.

Brown, William Btron. See Harper, Daniel Roberts, and W. B. Brown: Mathematical equations for heat conduction in the fins of air-cooled engines.

Brown, William Goss. Measuring an airplane's true speed in flight testing.

National Advisory Committee for Aeronautics, Technical Notes No. 135, Apr. 1923, Washington, pp. 10, ill.

- See Norton, Frederick Harwood, and W. G. Brown: Complete study of

the longitudinal oscillation of a VE-7 airplane.

Brunat, Henri. L'accroissement de la sécurité en aviation (Enseigements tirés des accidents).

La. Tech. Aéron., 14e année, n. s. No. 26 (15 déz, 1923), Paris, pp. 841-852, ill.

Brunner, Frank J. Army flyers make eleven world records.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 11-13.

- Night air-mail service from coast to coast.

U. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, pp. 9-13, ill.

Brutzkus, M. Contribution de la théorie des moteurs à combustion interne. Paris, Gauthier-Villars et Cie., 1923, pp. 78.

Bryan, G. H. Recent contributions to aviation problems.

Nature, vol. Ill, No. 2800 (June 30, 1923), London, pp. 886-888.

Bryant, L. W. Some calculations dealing with the disturbed motion of an aeroplane, with special reference to landing.

Aeronautical Research Committee Reports and Memoranda, No. 805 (Ae. 58) (Dec. 1921) London, 1923, pp. 12.

Buckingham, Edgar. Jet propulsion for airplanes.

National Advisory Committee for Aeronautics, Report No. 169, May 21, 1923, Washington, Government Printing Omca, 1923, pp. 18, tabls., diagrs.

Budig. The Budig glider.

Plight, Vol. 15, No. 1 (Jan. 4, 1923), London, pp. 9-10, ill.

Büttner. Eine neue deutsche Flugzeugkonstruktion.

Motorwagen, Bd. 26, No. 28 (Oct. 10, 1923), Berlin, pp. 421-422, ill.

Bulkheads. Fire experiments with various types of fireproof bulkheads.

Aeronautical Research Committee, Reports and Memoranda, No. 852 (F. 3), Nov. 1022 London, 1923, pp. 4, tahls.

Bureau of Standards. See Brown, Fay C: Aviation work of the Bureau of Standards.

Burel, Emile. See Painlevé, Paul; Emile Burel et Ch. Maurain: L'aviation. Burgess, C. P. Dawn of a new era in passenger transportation.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 132-135.

Burgoine, A. C. Starting systems for large aircraft engines.

Automobile Engineer, Vol. 13, No. 175 (Apr. 1923), London, pp. 114-117, ill.

Burnet, C. Dennis. The British imperial airship scheme.

Aviation, Vol. 14, No. 10 (Mar. 5, 1923), New York, pp. 266-268.

- The Burney airship scheme. Airship line to India.

The Aeroplane, Vol. 25, No. 7 (Aug. 15, 1923), London, p. 180.

- The establishment of a self-supporting airship service.

The Aeroplane, Vol. 24, No. 8 (Feh. 21, 1923), London, pp. 135-140. Flight, Vol. 15, No. 7 (Feb. 15, 1923), London, pp. 95-96.

Burzio, Filippo. Théorie della dinamica atmosferica.

Ingegneria, Vol. 11, No. 2 (Nov. 1923), Milano, pp. 318-319, ill.

Butman, Carl H. Naval shore establishments need air stations.

■ Aviation, Vol. 14, No. 7 (Feh. 12,1923), New York, pp. 186-187.

Bywater, Hector, Maurice Prendergast, and Oscar Parkes. A vision of terror. A concept of future war by sea and air.

Practical Engineer, Vol. 67, Nos. 1887, 1888, 1893 (Apr. 26, May 3, June 7, 1923), London, pp. 225, 241-243, 311-313.

Bywater, H. C. Are huge aircraft carriers worth while? Scient. Amer., Vol. 128 (Mar. 1923), New York, p. 164.

c

C. A. C. See Defense: Antiaircraft defense. Compiled by the officers of the First Antiaircraft Battalion, C. A. C.

C. A. M. S. The C. A. M. S. type 33 Bis flying boat.

Flight, Vol. 15, No. 39 (Sept. 27, 1923), London, pp. 582-584, ill., diagr.

C, F. See F. C: L'utilisation des moteurs d'aviation existant sur les appareils civils.

C. L. La France et les États-Unis à l'assaut des records.

L'Aérophile, 31e année, Nos. 7-8 (1 er-15 avril 1923), Paris, p. 101.

Cabral, Sacadura. See E. P.: La réception à la Sorbonne des aviateurs Portugais Gago Coutinho et Sacadura Cabral (31 mai 1923).

Calderara, M. The Wright Brothers' discovery.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, pp. 10-12.

Caldwell, F. W. American progress in adjustable pitch propellers.

International Air Congress, London, 1923, Report, London, 1923, pp. 565-601, ill., diegrs.

Cameron, Allan J. Skywriting pilots have covered United States.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 406-407, ill.

Canada. Report of the air board for the year 1922, Dominion of Canada. Ottawa, Editeur, F. A. Aclaud.

Cantero-Villamil. Aviation et probabilité les problèmes du vol sans moteur, exposé élémentaire, l'hélice automotrice dans le vent réel, appendice au subjet de la relativité, le vol à voile et le système vent moyen. Paris, Gauthier-Villars et Cie., 1923, pp. 144.

Canudo. L'autre aile. Synthèse romanesque de la vie et de la mort ailées. Paris, 1922.

Capon, R. S., and A. Lee. Preliminary report on the forced oscillations of aircraft compasses.

Aeronautical Research Committee, Reports and Memoranda, No. 874 (M. N. 6), July 1920, London, 1923, pp. 9, ill.

Caproni. New Caproni airplanes.

Aviation, Vol. 14, No. 2 (Jan. 8, 1923), New York, p. 45, diagr.

Carburation. See Poincaré: La carburation dans les moteurs d'aviation.

Carburetors. See Le Grain, René: Les carburateurs à pulvérisation thermique.

- See Miller, J. M.: Description of carburetor test chamber and method of

making computations.

- See R. D.: La coupe de consommation d'aviation Zénith.

- See Stromberg: Stromberg aviation carburators.

Cario, Gunther. See Münk, Max Michael, and Gunther Cario: Downwash of airplane wings.

Carley. The Carley light plane; 20 horsepower Anzani engine.

Flight, Vol. 15, No. 48 (Nov. 29, 1923), London, pp. 725-728, ill., diagr.

Carpenter, Ford A. Landing fields in vicinity of Los Angeles.

Aviation, Vol. 14, No. 20 (Mey 14, 1923), New York, pp. 530-531, map.

Carriers. Are huge aircraft carriers worth while?

Aviation, Vol. 14, No. 11 (Mar. 12, 1923), New York, p. 295, ill.

- British Navy aircraft carriers.

Engineering, Vol. 116, No. 3018 (Nov. 2, 1923), London, pp. 564-565, ill.

- Powerful airplane carriers building for U. S. Navy.

Mer. Eng., Vol. 28, No. 1 (Jan. 1923), pp. 29-30, ill.

- See Keller, H. R.: U. S. S. Langley, our first aircraft carrier.

Carroll, Thomas. The practical importance of the free flight work of the National Advisory Committee for Aeronautics.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 112-114, 119, 111.

- See Norton, Frederick Harwood, and T. Carroll: The vertical, longitudinal, and lateral accelerations experienced by an S. E. 5A airplane while maneuvering.

Carter, B. C. On the stability of aero engines.

Journ. Roy. Aer. Soc, Vol. 27, No. 155 (Nov. 1923), London, pp. 561-566.

Casale, Jean. Jean Casale.

The Aeroplane, Vol. 24, No. 26 (June 27, 1923), London, p. 478-B.

Caspar. Caspar aircraft at Gothenburg.

Aer. Eng. Suppl. The Aeropiene, Vol. 25, No. 5 (Aug. 1,1923), London, pp. 124-126, ill.

- The Caspar sport seaplane.

Flight, Vol. 15, No. 24 (June 14, 1923), London, pp. 315-316.

Cassinis, G. Il rilevamento topografico dagli aerei.

Atti Assoc. Bai. Aerotecn., 1923, Voi. 3, No. 2, Roma, 1923, pp. 95-119, ill. Appendice. Sulla risoluzione del problema del vertice di piramide.

Catjdeon. See R. L. : Inauguration du monument Caudron, au Crotoy. Cavb-Bbown-Cave, T. R. The practical aspect of seaplanes.

Journ. Roy Aer. Soc, Vol. 27, No. 150 (June 1923), London, pp. 272-288.

Cayley. See Garber, Paul Edward: The Cayley historical helicopter.

Cayley, George. Sir George Cayley's work in aeronautics.

Aviation, Vol. 15, No. 25 (Deo. 17, 1923), New York, pp. 744-747.

- See Hodgson: Sir George Cayley.

- See Hodgson, J. E.: Some notes on Sir George Cayley as a pioneer of

aeronautics.

Ceiling. See Alayrac, A. : Note sur la résolution graphique des équations du vol horizontal et la détermination du plafond.

- See Diehl, Walter Stuart: Engine performance and the determination of

absolute ceiling.

Celastoid. Celastoid and celanese.

Flight, Vol. 15, No. 37 (Sept. 13, 1923), London, p. 552.

Census. Official aircraft census.

Aviation, Vol. 15, No. 19 (Nov. 5, 1923), New York, p. 573.

Centervall, B. Flight and a fall.

Living Age, Vol. 319 (Nov. 17, 1923), Boston, pp. 303-305.

Chaloner, J. L. The heavy-oil aero engine.

Gas and Oil Power, Vol. 18, No. 215 (Aug. 2,1923), London, pp. 181-183, ill.

Champsaur, N. Le problème du graissage dans les moteurs et les phénomènes de viscosité.

L'Aérophile, 31e année, Nos. 15-18 (1 er-15 aout-1 er-15 sept. 1923), Paris, pp. 247-249,280-285, ill.

Chantiers Aero Martimes de la Seine. C. A. M. S. flying boats.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 22 (May 30, 1923), London, p. 402.

Charles. See Lallier, Roger: L'exposition rétrospective de l'Aéro-Club de France en l'honneur du Physicien Charles.

- See R. L.: Récit des deux premiers voyages aériens. Relation de Charles.

- See Serph, André: Le centenaire du physicien Charles.

Charts. See Europe: Flugverkehrskarte von Mittel-Europa.

Chase, Herbert. Navy's new dirigible ZR-1 completes trial flight successfully.

Automotive Industries, Vol. 49, No. 10 (Sept. 6, 1923), New York, pp. 474-478, ill.

Chicago. Chicago first in the air.

Playground, Vol. 17 (Sept. 1923), New York, p. 351.

- See Rieman, Charles S.: Chicago, the Nation's airport.

- See Schildhauer, Edward: Chicago, the center of airship routes of the

world.

Chile. Chile makes a new air record; across South America by airplane. Bulletin, Pan-American Union, Vol. 56 (Feb. 1923), Washington, pp. 149-151.

China. Aviation in China.

Aviation, Vol. 15, No. 13 (Sept. 24, 1923), New York, p. 375.

- The "Schoettler I" biplane. A successful Chinese-built aeroplane.

Flight, Vol. 15, No. 44 (Nov. 1, 1923), London, pp. 675-676, ill.

Chorlton, A. E. L. The crude oil aero engine.

International Air Congress, London, 1923, Report, London, 1923, pp. 441-465, ill., diagrs.

Chrétien, H. L'aviation et la guerre future. Guerre future. Guerre d'autrefois. La guerre moderne. La guerre de demain. Tours, 1922, pp. 46, ill.

Christie, M. G. Geology as an aid to air navigation.

Aviation, Vol. 14, No. 23 (June 4, 1923), New York, pp. 609-611.

Cierva. The Cierva "Autogiro."

Flight, Vol. 15, No. 21 (May 24, 1923), London, p. 275, ill.

Citt planning. Aviation and modern city planning.

Aviation, Vol. 15, No. 3 (July 16, 1923), New York, p. 72.

Civil aeronautics. Civil air transport subsidies report.

Flight, Vol. 15, No. 9 (Mar. 1, 1923), London, pp. 120-121.

Civil aviation. Certificates of airworthiness and the private airplane.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 9 (Aug. 29, 1923), London, pp. 233-234.

- The civil aeronautics act of 1923. Abstract of bill introduced in the House

by the Hon. Samuel H. Winslow of Massachusetts.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, pp. 126-128.

- The civil aeronautics act of 1923. Bill introduced in House by Representative Winslow provides for comprehensive federal air legislation.

Aviation, Vol. 14, No. 3 (Jan. 15, 1923), New York, pp. 77-78.

- On civil aviation again.

The Aeroplane, Vol. 24, No. 22 (May 30, 1923), London, pp. 393-396.

- On civil aviation developments.

The Aeroplane, Vol. 25, No. 8 (Aug. 22, 1923), London, pp. 201-203.

- On more civil aviation.

The Aeroplane, Vol. 25, No. 10 (Sept. 5, 1923), London, pp. 249-252, 260.

- The new civil aviation scheme.

The Aeroplane, Vol. 24, No. 9 (Feb. 28, 1923), London, pp. 152, 160.

- On some more aspects of civil aviation.

The Aeroplane, Vol. 25, No. 12 (Sept. 19, 1923), London, pp. 289-290.

- On the latest civil aviation scheme.

The Aeroplane, Vol. 24, No. 10 (Mar. 7, 1923), London, pp. 170-172.

- See Great Britain—Air Ministry: Report on government financial assistance to civil air transport companies.

Civil Aviation Advisory Board. Report on aerodrome facilities of London. London, His Majesty's Stationery Office, 1923, pp. 8. Cmd. 1816. Flight, Vol. 15, No. 10 (Mar. 8, 1923), London, pp. 134-135.

Clark. The Clark biplane racer.

Aerial Age, Vol. 16, No. 2 (Feh. 1923), New York, p. 86, ill.

Claudy, C. H. Airplanes in the public consciousness, planes-in-the-war exhibit at the National Museum in Washington.

Scient. Amer., Vol. 128 (Jan. 1923), New York, p. 32, ill.

Claxton, W. J. The airman and his craft. London, 1923, pp. 80, 111.

Clementi, A. Sui metodi di fototopografia aerea.

Riv. Marittima, 1922.

Climbing. See Koenig, Georg: Thrust and power required for climbing.

Climbing ability. See Blasius, H.: Determination of climbing ability.

Clouds. La semaine internationale des nuages.

L'Aérophile, 31e année, Nos. 17-18 (1 er-15 sept. 1923), Paris, p. 271.

61287—26-3

Cobham, Alan J. Air travel must be made popular.

Aetooautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 332.

- To Gothenburg and back in a D. H. 50.

Flight, Vol. 15, No. 36 (Sept. 6, 1923), London, pp. 536-538, ill.

Codes. A proposed international aircraft code.

Aviation, Vol. 15, No. 2 (July 9,1923), New York, pp. 44-47.

Codice. II codice internazionale deH'aria. Lavori, congressi internazional' programma della sezione italiana del comitato giuridico internazionale delli aeronautica.

Eoma, 1922, pp. 72.

Coffin, Howard E. Air transportation.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 418, 455.

- "America first in the air."

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 86-87, 149.

- The renascence of aviation.

U. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, pp. 16-17, ill.

Collas, Robert. L'aérostation au Ville Salon de l'Aéronautique.

L'Aêrophile, 31e année, Nos. 3-4 (ler-15 tév. 1923), Paris, pp. 54-55, ill.

Collier. The Collier trophy.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, p. 27.

Collin, Denyse. Les impressions d'une parachutiste.

L'Aêrophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, p. 345, ill.

Collins, Francis A. Boy's book of model aeroplanes.

London, 1923, ill.

Collins, Frederick L. Bird's-eye sight-seeing.

Woman's Home Companion, Vol. 50 (Oct. 1923), Springfield, Ohio, pp. 19-20, ill.

Colvin, Charles H. Calculating altitudes for record purposes. Aviation, Vol. 15, No. 15 (Oct. 8, 1923), New York, p. 440.

Colvin, Fred H. Machining the Wright aviation-engine cylinder block.

American Machinist, Vol. 58, No. 25 (June 21, 1923), New York, pp. 903-906, ill.

- Making parts of a nine-cylinder motor.

American Machinist, Vol. 58, No. 20 (May 17,1923), New York, pp. 717-720, ill.

- Making the Lawrence airplane engine.

American Machinist, Vol. 58, No. 18 (May 3, 1923), New York, pp. 649-652, ill.

- Reconditioning airplane motors at Fairfield.

American Machinist, Vol. 58, No. 26 (June 28, 1923), New York, pp. 929-932, ill.

Comité juridique internationale de l'aviation. De l'enterriotorialité; rapporteur M. Perrin. Code international de l'air. Paris, 1923.

Commercial aeronautics. Aircraft factory organization.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 422, 455.

- Coming: Overnight airships, New York to Chicago.

Literary Digest, Vol. 76 (Mar. 24, 1923), New York, pp. 58-62, ill.

- Commercial aviation. German viewpoint.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, pp. 330-331.

- The cost of subsidized air transport.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 10 (Mar. 7, 1923), London, pp. 175-176

- Cotton transported by airplane.

Aerial Age, Vol. 16, No. 7 (July, 1923), New York, pp. 322, 346, ill.

Commercial aeronautics. Europe ahead in commercial flying.

Literary Digest, Vol. 78 (July 14, 1923), New York, pp. 50-56, map.

- Flying, cheap travel.

Science, n. s. Vol. 56 (Deo. 29, 1922), New York, p. 12.

- Flying to Flanders.

Woman's Home Companion, Vol. 50 (Nov. 1923), Springfield, Ohio, p. 13, ill.

- King cotton goes up in the air.

Literary Digest, Vol. 78 (Aug. 11, 1923), New York, pp. 55-50.

- London-Paris air fares.

Flight, Vol. 15, No. 35 (Aug. 30, 1923), London, p. 521.

- National air transport.

Flight, Vol. 15, No. 35 (Aug. 30, 1923), London, p. 520.

- New England network of air lines contemplated.

Aerial Age, Vol. 16, No. 7 (July 1923), New York, pp. 315-316, map.

- New York to Newport air line assured.

Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, p. 370.

- On the aircraft trade and air policy.

The Aeroplane, Vol. 24, Nos. 15-19 (Apr. 11-May 9, 1923), London, pp. 264-268, 281-283, 301-302, 317-320, 330, 337-340.

- Plans of flying companies for 1923 season.

Aviation, Vol. 14, No. 19 (May 7, 1923), New York, pp. 494-498, ill.

- Practical commercial flying.

The Aeroplane, Vol. 25, No. 24 (Dec. 12, 1923), London, p. 570.

- The proposed airship line between Spain and South America.

Flight, Vol. 15, No. 21 (May 24, 1923), London, pp. 276-278.

- Thirty-eight hours' flying in six days. Fine performance by D. H. taxi-plane.

Flight, Vol. 15, No. 27 (July 5, 1923), London, p. 374, ill.

- Trans-Atlantic air line between Spain and South America.

Living Age, Vol. 318 (Sept. 29, 1923), Boston, p. 582.

- Two recent American commercial aeroplanes. The Lincoln-Standard

LS-5 and the Lair Limousine.

Flight, Vol. 15, No. 52 (Dec. 27, 1923), London, pp. 777-778, ill.

- What the airplane may do to business.

Literary Digest, Vol. 77 (Apr. 21, 1923), New York, pp. 66-72.

- See A. T.: Quelques chiffres et quelques réflexions sur le trafic des lignes

aériennes françaises en 1922.

- See Adams, Porter: Making flying safe and desirable.

- See Baumgarten, F. F.: Berlin to London by air.

- See Black, Archibald: Low operating cost is essential to cornmerical planes.

- See Burgess, C. P.: Dawn of a new era in passenger transportation.

- See Burney, C. Dennis: The establishment of a self-supporting airship

service.

- See Gnott, E. N.: Infantile paralysis in airplane industry.

- See Great Britain, Air Council: Agreement made with the British, Foreign,

and Colonial Corporation (Ltd.), providing for the formation of a heavier-than-air transport company, to be called the Imperial Air Transport Company (Ltd.).

Commercial aeronautics. See Johnson, P. D.: Commercial aviation: Some truths on the suhject.

- See Joyce, Temple N. : Successful commercial aviation analyzed.

- See Knight, William: What is the matter with commercial aviation?

- See Ludington, C. T.: Commercial aeronautics and the national defense.

- See Malone, Cecil L'Estrange: Commercial aircraft and the state.

- See Moffett, Charles A. : Commercial possibilities of aviation.

- See Page, F. Handley, and W. P. Savage : The development of commercial

aviation.

- See Redden, Charles F. : The outlook for commercial aviation in America.

- See Scott, G. H. : Commercial aspect of airship transport.

- See Weeks, John W. : Military and commercial aviation.

- See Warner, Edward P.: Commercial aviation in 1923.

Commission Internationale de Navigation Aérienne. Troisième session de la Commission Internationale de Navigation Aérienne.

L'Aérophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris, p. 79.

Commission of Jurists on the Laws of War. General report [on radio and aerial warfare] of the commission of jurists at The Hague.

American Journal of International Law, Vol. 17, 1923, Suppl. pp. 242-260.

Compasses. Tests on improved models of aircraft compasses.

Aeronautical Research Committee, Reports and Memoranda, No. 868 (M. N. 5), Dec. 1922, London, 1923, pp. 4.

- See Rowe, A. P.: The northerly turning error of compasses in aircraft.

Congrès de Chronometrie. See Leroy, L. : Le chronométrage au Congrès de Chronometrie.

Congrès international Aéronautique. See M. L.: Congrès international Aéronautique de Londres.

Congrès International de Législation Aérienne Quatrième Congrès International de Législation Aérienne tenu à Monaco du 19 au 22 décemhre 1921 sous la présidence de M. A. de Papradelle. Paris, A. Pedone (1922), pp. 239.

Constantin. Note sur l'angle de vol au plafond.

La Tech. Aeron., 14e année, n. s. No. 16 (15 fév. 1923), Paris, pp. 493-495, ill.

- »See Pitois, E. : Contribution à l'étude du grain des aciers appliquée aux

ferrures d'avions.

Constantin, Louis. Une nouvelle méthode simple de navigation aérienne à l'estime.

L'Aérophile, 31e année, Nos. 11-12 (ler-15 juin 1923), Paris, pp. 177-178, ill.

Construction. Amateur construction of light aeroplanes. Scheme not generally favoured by aircraft firms.

Flight, Vol. 15, No. 47 (Nov. 22, 1923), London, pp. 714-715.

Contact flying. Experiments in contact flying at Mitchel Field. Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, p. 374.

Contest officials. New F. A. I. ruling regarding contest officials. Aviation, Vol. 14, No. 23 (June 4, 1923), New York, p. 614.

Control. The effect upon the control of an aeroplane of carrying load distributed along the planes.

Aeronautical Research Committee, Reports and Memoranda, No. 849 (Ae. 92), Nov. 1922, London, 1923, pp. 8.

- New monoplane control proves successful.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 20-21, ill.

- See Jones, Melvill: Control of aeroplanes at low speeds.

- See Loening control.

- See Loening: New type of flying control proves successful. Demonstration of the Loening lateral pressure equalizer.

- See MacDill, Leslie: A study of controllability, angular velocity and

dynamic stability of an airplane about the axis of pitch.

- See Wood, R. McKinnon: Control of aeroplanes at low speeds.

Control force recorder. See Reid, H. J. E.: Notes on the N. A. C. A. control force recorder.

Control indicators. See Robinson, J.: Reid control indicator for aeroplanes.

Cooke, Conway W. Aviation pays its way.

Aerial Age, Vol. 16, No. I (Jan. 1923), New York, pp. 12-14, 23, ill.

- "In union there is strength."

TJ. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, pp. 29-31.

- Some phases of the N. A. A.

Aerial Age, Vol. 16, No. 5 (May 1923), New York, p. 233.

Cooling systems. Cooling system flight test of TW-1 airplane.

United States Air Service Information Circular, Vol. 5, No. 410 (Apr. 1, 1923), Washington, Government Printing Office, pp. 4, ill.

- See Hardecker, John F.: Aeronautical fuel, lubricating, and cooling

systems.

- See Martinot-Lagarde: Les accessoires dn groupe motopropulsner.

Coontz, Robert E. The wings of the fleet.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 75, 146-147.

Corbett-Smith, A. Riders of the air.

London, G. Richards (Ltd.), 1923, pp. 271.

Corelli, R. M. Azione corrosiva dell'olio di ricino acido sopra varii metalli e leghe metalliche.

Comm. Aeron. Rend. Tecn., Anno 11, N. 3 (15 Ott. 1923), Roma, 1923, pp. 47-51.

- Le vernici a tendere per aeroplani, a base di eteri della cellulosa.

Rend. Instituto Sper. Aer., Anno 11, Vol. 1, N. 1 (15 mag. 1923), Roma, appendice.

Cormac, P. A treatise on engine balance using exponentials. London, Chapman & Hall, Ltd., 1923, pp. xi, 151, diagrs. Reviewed in Journ. Roy. Aer. Soc, Vol. 27, No. 151 (July 1923), London, p. 368.

Costanzi, Giulio. Note sull'aeronautica postbellica. Genova, 1922.

Costanzi, Giulio, e Mario Bernasconi. Exponential law of variation of drift and lift models of airplanes and wings at various velocities. Aerial Age, Vol. 16, No. 7 (July 1923), New York, pp. 325-329.

-• Sulla variazione della portanza e della resistenza dei modelli di aeroplani

e di ali col variare della velocità.

Atti Assoc. Ital. Aerotecn., 1923, Voi. 3, N. 2, Roma, 1923, pp. 123-134, ill., graphs, tabls.

Costanzi, Gitjglio. See Knight, William, L. Prandtl, von Karman, G. Cos-tanzi, W. Margoulis, R. Verduzio, Richard Katzmayr, E. B. Wolff and A. F. Zahm: Standardization and aerodynamics.

Cotton. Transportation of cotton by aeroplane.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, p. 7, ill.

Cotton, F. S. Labrador.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, pp. 14-15, ill.

Cotjpet, Lucien. See Blanchet, Georges: Aviateurs conetmporains. Lucien Coupet.

Cousin. Les méthodes de navigation aérienne.

La Tech. Aéron., 14e année, n. s. No. 21 (15 juil, 1923), Paris, pp. 666-878, ill.

Coutinho, Gaqo. See E. P.: La réception à la Sorbonne des aviateurs Portugais Gago Coutinho et Sacadura Cabrai (31 mai 1923).

- See Lecointe: La Méthode de navigation de l'Admirai Gago Coutinho.

Coventry. Cycle engines for light planes. The Coventry Victor 688 c. c. flat twin.

Flight, Vol. 15, No. 17 (Apr. 26, 1923), London, p. 228, ill.

Coventry Victor. Engines for low-powered aeroplanes. The " Coventry Victor" flat twin.

Aer. Eng. Suppl. Tbe Aeroplane, Vol. 24, No. 25 (June 20, 1923), London, pp. 460-462, ill.

Cowie, Robert E. M. The New York-Chicago air service.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, p. 9.

Cowley, W. L., and L. J. Jones. Biplane investigation with R. A. F. 15 section. Part II.

Aeronautical Research Committee, Reports and Memoranda, No. 857 (Ae. 97), Dec. 1922, London, 1923, pp. 15, tabls., diagrs.

Cowley, W. L., A. G. Gadd, L. J. Jones, and Sylvia W. Skan. Biplane investigation with R. A. F., 15 section. Part III. Tests at various staggers and gap chord ratios.

Aeronautical Research Committee, Reports and Memoranda, No. 872 (Ae. 108), May 1923, London, 1923, pp. 13, tabls., diagrs.

Cowley, W. L., and C. N. H. Lock. A comparison between the aerodynamic properties of two aerofoils of the same section, but with square and rounded wing tips, respectively.

Aeronautical Research Committee Reports and Memoranda, No. 816 (Ae. 67) (Aug. 1921), London, 1923, pp. 8, tabls., diagrs.

Cowley, W. L. Wind tunnel tests on a Fokker biplane.

Aeronautical Research Committee Reports and Memoranda No. 817 (Ae. 68) (Sept. 1921), London, 1923, pp. 6, tabls., diagrs.

--Wind-tunnel work at the N. P. L.

Proceeding of the Institution of Aeronautical Engineers, No. 5, 1923, London, pp. 24-30, 30-33.

Cox-Klemin. Cox-Klemin model CK-2 training plane.

Aviation, Vol. 15, No. 12 (Sept. 17,1923), New York, p. 339, ill.

■- See Weaver, D. B.: Static test of the Cox-Klemin TW-2 training airplane,

A. S. No. 68540.

Cram, Ralph W. Present-day aeronautical problems.

Aerial Age, Vol. 16, No. 2 (Feb. 1923), New York, pp. 54-58.

Chane, H. C. See Parkin, J. H., H. C. Crane, and J. E. S. MaeAllister: Wing-tip research.

Crawford, 0. G. S. Air survey and archaeology.

Geographical Journal, Vol. 61, No. 5 (May 1923), London, pp. 342-366, ill.

Crissy Field. See Brett, George H.: History of Crissy field.

Crocco, G. Arturo. Commercial airships.

Aeronautical Digest, Vol. 3, No. 6 (July 1923), New York, pp. 12, 44.

- Determining economical and constructional limits of airships.

Aviation, Vol. 14, No. 7 (Feb. 12, 1923), New York, pp. 184-185.

- The employment of helium in airships.

Aviation, Vol. 15, No. 4 (July 23, 1923), New York, pp. 97,100.

- Meeeaniea.—La eompansazione dei consumi di navigazione nelle aeronavi.

Atti Reale Aecademie Nazionel Lineei, Vol. 32, Fase. 3, 1923. Roma, pp. 107-112.

- Note di tecnica aeronavale.

Atti Assoc. Ital. Aeroteen., 1923, Vol. 3, N. 3, Roma, 1923, pp. 167-188.

- The use of helium in dirigibles.

International Aeronautics, Vol. 1, No. 4 (Nov. 1923), New York, pp. 214-215.

Croydon. The development of Croydon aerodrome.

The Aeroplane, Vol. 24, No. 10 (Mar. 7, 1923), London, p. 182.

- Dominion premiers at Croydon.

Flight, Vol. 15, No. 46 (Nov. 15, 1923), London, pp. 694-700, ill.

Crtjmrine, C. E. Airway landing fields.

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, p. 181, ill.

Ctjrley, James M. Boston: The northeastern air port.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 237-238.

Cdrry, R. A. Forced landing among Bedouins.

Travel, Vol. 40 (Mar. 1923), New York, pp. 2S-30.

Ctjrtiss. The Curtiss night mail plane.

Aviation, Vol. 15, No. 10 (Sept. 3, 1923), New York, pp. 272-273, ill.

- The Curtiss Oriole for aerial photography.

Aviation, Vol. 14, No. 6 (Feb. 5, 1923), New York, pp. 154-155, ill.

- Curtiss plane, Pulitzer race winner, embodies new design features.

Automotive Industries, Vol. 49, No. 15 (Oct. 11, 1923), New York, pp. 742-743, ill.

- Reorganization of the Curtiss corporation.

Aviation, Vol. 14, No. 13 (Mar. 26, 1923), New York, pp. 342-343.

- See Tests: The Curtiss rib-testing machine.

Cdrtiss-Reed. Description of the Curtiss-Reed metal propeller. Aviation, Vol. 15, No. 21 (Nov. 19, 1923), Now York, p. 630, ill.

Cushing, Charles P. Our future is seen from the air. Collier's, Vol. 71 (July 16, 1923), New York, pp. 12, ill.

Cycles. The cycle theory in flying.

Aerial Age, Vol. 16, No. 5 (May 1923), New York, pp. 229-230.

Czechoslovakia. Some Czechoslovak gliders.

Flight, Vol. 15, No. 11 (Mar. 15, 1923), London, p. 149, 111.

- See Trnka, B.: Civilian aviation in Czechoslovakia.

D

D., R. See R. D. : L'avion biplan Liore-Olivier, type Le O 8.

- See R. D.: L'avion de chasse monoplan Wibault 3-C-l.

——■ See R. D.: Le biplan de transport quadrimoteur Blériot type B-115.

- See R. D.: La coupe de consommation d'aviation Zénith.

- See R. D. : La Course-Croisière de la Méditerranée.

—■— See R. D. : L'exposition aéronautique internationale et la semaine d'aviation de Gothembonrg.

- See R. D. : Les hélicoptères.

- See R. D.: L'inauguration du centre médical d'examens et d'études de

l'aéroport du Bourget.

--See R. D.: Nos derniers avions de vitesse.

- See R. D.: Sadi-Lecointe bat son propre record de hauteur. D monte à

11.145 mètres.

Daçay, Jean. L'aviation.

Paris, 1922, pp. 120, ill.

Dacy, George H. Mapping from the skies.

Scient. Amer., Vol. 128, No. 5 (May 1923), New York, pp. 328-329, ill.

Daly, James P. Alaska.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, p. 13.

D argue, H. A. Training a major general to fly.

U. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, pp. 18-22.

Davis, W. Jefferson, and William H. Hamby. Air to let.

Saturday Evening Post, Vol. 195 (Mar. 3, 1923), Philadelphia, p. 14, ill.

Davis, W. Jefferson. The international air code.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 103-106.

- International legislation.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 346.

- The reserve in California.

U. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, p. 20.

DAWN-to-dusk flight. The second dawn-to-dusk flight attempt.

Aviation, Vol. 15, No. 5 (July 30, 1923), New York, pp. 118-119, ill.

Dayton Wright. The Dayton Wright "chummy" sport plane.

Aviation, Vol. 14, No. 18 (Apr. 30, 1923), New York, pp. 469-471, ill.

De Bothezat, George. See Bothezat, George de.

De Fleury, R. See Portevin, A. M., and R. De Floury: Les alliages ultralégers et leur utilisation en aéronautique.

De Havilland. The De Havilland 53 light plane.

Flight, Vol. 15 No. 39 (Sept. 27, 1923), London, pp. 576-580 ill.

- A new De Havilland commercial airplane. The DH-50 with 240 horsepower Siddeley "Puma" engine.

Flight, Vol. 15, No. 32 (Aug. 9, 1923), London, pp. 473-477 ill., diagr.

Deafness. See Scott, Verner T.: Airplane deafness and its prevention.

Defense. Antiaircraft defense. Compiled by the officers of the First Antiaircraft Battalion, C. A. C.

Fort Monroe, 1922, pp. 201 ill.

Delanghe, G. Note au sujet d'un nomogramme pour le calcul des performances des avions.

La Tech. Aéron., 14e année, n. s. No. 17 (15 mars. 1923), Paris, pp. 548-550, ill.

Delbègue, R. Le Ville salon de l'aéronautique. Paris, 1923.

Delcambre. Affichages des renseignements météorologiques dans les aerodromes.

International Air Congress, London, 1923, Report, London, 1923, pp. 606-614, ill.

Demetjran, P. Les avions au Ville Salon de l'Aéronautique.

L'Aérophile, 31e année, Nos. 1-2 (ler-15 Jan. 1923) Paris, pp. 10-16, ill. Voir Aérophile, No. 23-24 du ler-15 décemhre 1922.

- La Ville exposition internationale de l'aéronautique.

Technique Moderne, T. 15, No. 2 (jan. 15, 1923), Paris, pp. 33-37, ill,

Denby, Edwin. The aeronautical industrj' and the national defense. U. S. Air Service, Vol. 8, No. 1 (jan. 1923), Washington, pp. 9-10.

- Fleet aviation.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 107-109, ill.

Denmark. Dänisches Luftfahrtgesetz vom 1. Mai 1923.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 25-26 (24. Juni-Juli 1923), Barlin, pp. 283-288, 293-297.

- Uebereinkommen zwischen Dänemark und Belgien betreffend die Luftfahrt.

Nachrichten für Luftfahrer, Jahrg. 4, No. 43 (28. okt. 1923), Berlin, pp. 433-435.

Depret, R. Au salon de l'aviation.

Paris, 1923.

Derby. The aerial derby official results.

Flight, Vol. 15, No. 35 (Aug. 30, 1923), London, p. 517.

-- The eighth aerial derby.

Flight, Vol. 15, No. 32 (Aug. 9, 1923), London, pp. 467-472, ill.

Desha, Jack D. Aerial photography—an aid to the municipal engineer in city planning.

Municipal Engineers' Journal", Vol. 9, first quarterly issue, 1923, New York, pp. 32-46. Design. Design competition for transport airplane. Air Service asks for bids on Liberty-engined eight-passenger carrier of 105 miles per hour speed. Aviation, Vol. 14, No. 4 (Jan. 22, 1923), New York, pp. 94-96.

- »See Diehl, W. S.: Principles of efficient aileron design.

- See Mayo, R. H.: The design of commercial aircraft.

■- See Savers, W. H.: The design of low-powered aeroplanes.

Destrem, Marcel. See Blanchet, Georges: Le Commandant Destrem.

- See P. M.: Les obsèques du Commandant Destrem.

Detroit. J. Atkinson wins Country Club of Detroit trophy race.

Aviation, Vol. 15, No. 16 (Oct. 15 1923), New York, pp. 481-482, ill.

Dévaluez, F. Les enquêtes sur les accidents d'aviation, les enseignements a en tirer.

International Air Congress, London, 1923, Report, London, 1923, pp. 632-638.

Development. Aircraft development since the armistice.

Aviation, Vol. 15, No. 1 (July 2, 1923), New York, pp. 6-9.

Devillers, René. See Breguet, Louis, et René Devülers: Note sur la détermination de l'indice d'essai statique des avions de transport déduit de l'action dynamique d'une houle aérienne.

Devillers, René. See Breguet, Louis, et René Dcvillers: Le problème de la stabilité des avions.

Dickeman, Charles T. The naval air station at Lakehurst, N. J. U. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 17-19, ill.

Dictionaries: See Palmer, Thomas F.: A technical dictionary in English, Spanish, and Portuguese.

Diehl, Walter Stuart. Engine performance and the determination of absolute ceiling.

National Advisory Committee for Aeronautics, Report No. 171, Sept. 14, 1923, Washington, Government Printing Offlee, 1923, pp. 12, tabi., diagrs.

- The general efficiency curve for air propellers.

National Advisory Committee for Aeronautics, Report No. 168, June 18, 1923, Washington Government Printing Offiee, 1923, pp. 11, tabi., diagrs.

- Notes on the design of ailerons.

National Advisory Committee for Aeronauties, Teehnieal Notes No. 144, June 1923, Washington, pp. 10, tabls., diagrs.

- Principles of efficient aileron design.

Aviation, Vol. 15, No. 8 (Aug. 20, 1923), New York, pp. 217, 220.

- Relative efficiency of direct and geared drive propellers.

National Advisory Committee for Aeronautics, Report No. 178, Jan. 11, 1924, Washington Government Printing Offiee, 1923, pp. 9, tabls., diagrs.

■- Reliable formulas for estimating airplane performance and the effects of

changes in weight, wing area, or power.

National Advisory Committee for Aeronautics, Report No. 173, Nov. 14, 1923, Washington, Government Printing Offiee, 1923, pp 22, tabi., diagrs.

Dierfeld, Benno R. Application of soaring machine practice to airplane design.

Automotive Industries, Vol. 48, No. 7 (Feb. 15, 1923), New York, pp. 332-336, ill. Diesel engines. See Morrison, Lacey H.: Diesel engines.

- See Orton, A.: The Diesel engine.

- See Vaillot, G.: Les moteurs Diesel et les moteurs semi-Diesel.

Dietrich. Two more new German aeroplanes.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 11 (Sept. 12, 1923), London, p. 276, diagr.

- See Kreuter, C; Der Dietrich-Passagier-Doppeldecker.

DiETSius, H. The air propeller, its strength and correct shape.

National Advisory Committee for Aeronautics, Teehnieal Notes No. 127, Feh. 1923, Washington, pp. 9, diagrs.

Direction. Direction and position finding by wireless. Paris, Wireless Press (Ltd.), 1922, pp. 376 ill.

Dirigibles. Record dirigible flight.

Aviation, Vol. 15, No. 15 (Oet. 8, 1923), New York, p. 445.

- Some drawbacks of dirigibles.

Literary Digest, Vol. 78 (Sept. 8, 1923), New York, pp. 65-69.

- See M. L.: L'essor des dirigeables en France et en Amérique.

DixMunE. French airship's record voyage. (Dixmude 4,400-mile trip, lasting 118 hours, 41 minutes).

Flight, Vol. 15, No. 41 (Oct. 11, 1923), London, p. 630, map.

— Over land and sea for a 4,500-mile record; German-French dirigible Dixmude.

Literary Digest, Vol. 79 (Oet. 20, 1923), New York, pp. 60-64, ill., map.

- See J. P. : Le naufrage du Dixmude.

Dobkevicitjs. The Dobkeviçius monoplane.

The Aeroplaae, Vol. 25, No. 24 (Dee. 12, 1923), London, p. 572, ill.

Dolezal, E. Internationales Arohiv für Photogrammetrie.

Herausgegeben von E. Dolezal, VI Bd. Wien, L. W. Seidel und Sohn, 1923.

Dollfus, Charles. See Hirschauer, Louis, et Charles Dollfus: L'année aéronautique 1922-1923.

- See La Vaulx, Henri de, Paul Tissander et Charles Dollfus. L'aéronautique des origines à 1922.

Donaldson, E. W. Photography from the air.

Photo-Era, Vol. 50 (Apr. 1923), Wolfeboro, N. IL, pp. 1S4-1SS, ill.

Dornier. The Dornier "Komet."

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 2 (Jan. 10, 1923), London, pp. 28-30, ill.

- A Dornier seaplane for naval purposes.

Aer. Eng. Suppl The Aeroplane, Vol. 25, No. 2 (July 11, 1923), London, p. 54, ill.

- Das Dornier-Verkehrsflugzeug "Komet".

Luftfahrt, Vol, 27, No. 6 (June 15, 1923), Berlin, p. 65 ill.

- The Dornier "Wal," twin-engined flying boat.

Aviation, Vol. 14, No. 17 (Apr. 23, 1923) New York, pp. 444-445, ill.

- Flugzeug "Dornier-Komet" 1922.

Der Luftweg, Heft 4 (Apr. 12, 1923), Berlin, p. 29, ill.

--Le monoplan Dornier, Komet type 1923. Le plus récent des avions

commerciaux allemands.

L'Aêrophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris pp. 77-78, ˇ11.

- New Dornier pursuit plane.

Aviation, Vol. 14 No. 8 (Feb. 19, 1923), New York p. 222.

Douglas. Cycle engines for light 'planes. The 500 e. e. Douglas fiat twin. Flight, Vol. 15, No. 20 (May 17, 1923), London p. 267, ill.

- The Douglas DT-4 bombing plane.

Aviation, Vol. 15, No. 15 (Oct. 8, 1923), New York, p. 446, ill.

- Engines for light aeroplanes. The SJ^-horsepower Douglas.

Acr. Eng. Suppl. The Aeroplane, Vol. 24, No. 22 (May 30, 1923), London, pp. 400-102, ill.

Douglas DT-4. A new American bombing 'plane: The Douglas DT-4. Flight, Vol, 15, No. 45 (Nov. 8, 1923), London p. 688, ill.

Douglas, Wm. D. The testing of aircraft structures and components.

International Air Congress, London, 1923, Report, London, 1923, pp. 204-211.

Dowtv, G. H. Oleo undercarriage design.

Proceedings of the Institution of Aeronautical Engineers No. 4, 1922, Loudon pp. 27-32. 33-36.

Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor. The mechanical properties of fluids in theory and practice.

London, Glasgow and Bombay, Blackie and Sou. (Applied physics scries), 1923, pp. xvi, 376.

Ducheheux, A. Les grandes réalisations modernes. Le vol sans moteur. Librairie des Sciences Aéroaauliques, Paris. Une broch.

Dumanois, P. La fatigue des moteurs à combustion interne.

La Tech. Aeron., 14c année, n. s., No. 23 (Sept. 15, 1923), Paris, pp. 730-747, ill.

Dunstan, A. S., and F. B. Thole. Aviation spirit—past, present, and future. International Air Congress, Loodon, 1923 Report, Loadoo, 1923 pp. 552-560.

Dupont, P. Sur une théorie électrostatique applicable à certains phénomènes d'aérodynamique. Communication faite à la Commission scientifique de l'Aéro-Club de Prance.

L'Aérophile, 31e année, Nos. 15-18 (ler-15 aout-ler-15 sept. 1923), Paris, pp. 231-234, 261-265, ill.

Duralumin. See Rettew, H. F., and G. Thumin: Tests on riveted joints in sheet duralumin.

Durand, William Frederick. <See Münk, Max Michael: Analysis of W. F. Durand's and E. P. Lesley's propeller tests.

Duration. The new world's duration record.

Aviation, Vol. 15 No. 24 (Dec. 10, 1923), New York p. 716.

Duval, A. B. L'emploi des méthodes de navigation est indispensable au succès des transports aériens commerciaux.

International Air Congress, London, 1923, Report, London, 1923, pp. 765-768.

E

E. P. La réception à la Sorbonne des aviateurs Portugais Gago Coutinho et Sacadura Cabrai (31 mai 1923).

L'Aérophile, 31e année, Nos. 11-12 (ler-15 juin 1923) Paris, pp. 170-172, ill.

Easterbrook, L. F. Air force and air folly.

Nineteenth Century, Vol. 94, No. 559 (Sept. 1923), New York, pp. 334-341.

Eastman Kodak Co. Aerial haze and its effect on photography from the air.

Monographs on the theory of photography, from the Research Laboratory of the Eastman Kodak Co., No. 4, New York, D. Van Nostrand Co., London, Kodak, Ltd., 1923, pp. 84.

Eaton, H. N. Aerial navigation.

U. S. Air Service, Vol. 8, Nos. 9, 10, 12 (Sopt. Oct. Dec. 1923), Washington, pp. 37-10, 39-44, 45-47.

Eckert, S. B. Philadelphia as a great air port.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, p. 241, ill.

Eclipse. Airplane observations of the eclipse.

Science, n. s., Vol. 58 (Aug. 24, 1923), Garrison, N. Y., sup. 8.

Edmonds, Wing Commander. Air strategy.

Flight, Vol. 15, No. 52 (Dec. 27, 1923), London, p. 781.

Ehrenfeld, A. A. Ancient reference to airships; review of the Queen of Sheba and her only son Menyelek.

Science, n. s., Vol. 58 (Sept. 7, 1923), Garrison, N. Y., pp. 179-180.

Eisenlohr, Roland. Der motorlose Flug (Gleit- u. Segelflugzeuge).

1922, pp. 116, ill.

- Der Rhön-Segelflugwettbewerb 1923 in seiner technischen Auswertung.

Zeitsehr. Flugt. Motorluftschr., Bd. 14, No. 17-22 (Nov. 21, 1923), Berlin, pp. 136-147, ill.

Ekholm, Nils, och G. V. E. Svedenborg. S. A. Andres ballongfärd mot nordpolen 11/7 1897.

Stockholm, 1922, pp. 68.

Endurance. Official report of endurance of Lieutenants Kelly and .Macready Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 32-33.

Engineering. Who's who in engineering, 1923.

London, Compendium Publishing Co., 1923.

Engines. Aero-engine calculations.

Practical Engineer, Vol. 68, No. 1907 (Sept. 13, 1923), London, pp. 143-154.

- Aero-engine cylinder calculations.

Practical Engineer, Vol. 68, No. 1920 (Dec. 13, 1923), London, pp. 333-335, ill.

- Aero-engine supercharging.

Engineering, Vol. 115, No. 2980 (Feh. 9, 1923), London, pp. 165-166, ill.

- Aircraft-engine specifications.

Automotive Industries, Vol. 48, No. 8 (Feh. 22, 1923), New York, p. 460.

- Comparative mathematical analysis of the stresses occurring in the camshaft drive gears of the Liberty 12 and the Packard 2025 engines.

TJ. S. Air Service Information Circular, Vol. 5, No. 423 (Apr. 1, 1923), Washington, Government Printing Office, pp. 15, ill.

- Cycle engines for light planes.

Flight, Vol. 15, No. 16 (Apr. 19, 1923), London, pp. 216-218, diagr.

- The development of engine reliability.

Aero. Eng. Suppl. The Aeroplane, Vol. 24, No. 23 (June 6, 1923), London, pp. 420-422.

- Engines for light aeroplanes.

The Aeroplane, Vol. 25, No. 26 (Dec. 26, 1923), London, pp. 610-611, ill.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 20 (May 16,1923), London, pp.. 364-366, diagr.

- Equipping the soaring plane with a small engine.

Scient. Amer., Vol. 128 (May 1923), New York, p. 317, ill.

- Recent aircraft-engine development.

Aviation, Vol. 14, No. 4 (Jan. 22, 1923), New York, p. 104.

- Remarkable aeronautical motor progress.

Illustrated World, Vol. 38 (Jan. 1923), Chicago, p. 747, 111.

——- Review of foreign engines for light planes.

Aviation, Vol. 15, No. 26 (Dec. 24, 1923), New York, pp. 766-769, ill.

- The revolver type engine.

Autocar, Vol. 51, No. 1450 (Aug. 3, 1923), London, p. 189, ill.

- Standard method of engine calculations.

U. S. Air Service Information Circular, Vol. 5, No. 421 (Apr. 1, 1923), Washington, Government Printing Office, pp. 36, ill.

- The thermodynamics of aircraft engines.

Flight, Vol. 15, No. 47 (Nov. 22, 1923), London, p. 716.

- The Wright E-4 aero engines.

Flight, Vol. 15, No. 22 (May 31, 1923), London, pp. 296-297, ill.

- See Adams, Walter L.: Machining half bearings for airplane motors.

- See Aitchisou, Leslie: The development of aero-engine materials.

- See Bardin, R.: El motor de explosión apliado a la aviación. Traducción

del francés por E. de Autrán.

--See Bawly, Ir. I.: Het nuttig effect der moderne snelloopende explosie-

motoren.

- See Blackburne: Engines for light airplanes. The Blackburne 697 c. c.

engine.

- See Brutzkus, M.: Contribution de la théorie des moteurs ä combustion

interne.

- See Burgoine, A. C: Starting systems for large aircraft engines.

Engines. See Carter, B. C. : On the stability of aero engines.

- See Chaloner, J. L. : The heavy-oil aero engine.

- See Champsaur, N.: Le problème du graissage dans les moteurs et les

phénomènes de viscosité.

- See Chorlton, A. E. L.: The crude-oil aero engine.

- See Colvin, Fred H.: Machining the Wright aviation-engine cylinder

block.

- See Colvin, Fred H.: Making parts of a nine-cylinder motor.

- See Colvin, Fred BL: Making the Lawrence airplane engine.

- See Colvin, Fred H.: Reconditioning airplane motors at Fairfield.

- See Cormac, P. : A treatise on engine balance using exponentials.

- See Diehl, Walter Stuart: Engine performance and the determination of

absolute ceiling.

- See Dumanois, P.: La fatigue des moteurs à combustion interne.

- See Etévé, Albert: Le rélage de la distribution des moteurs à explosion.

- See F. C: L'utilisation des moteurs d'aviation existant sur les appareils

civils.

--See Farman: Farman design 12-cylinder engine for aviation service.

- See Fedden, A. H. R.: Some problems of static radial air-cooled aero

engines.

- See G. M.: Moteurs et combustibles.

- See Günther, Otto: Luftgekühlte Sternfiugmotoren.

- See Guidoni, Allessandro: Motori a combustione interna e turbine a gas.

- See Harper, Daniel Roberts, and W. B. Brown: Mathematical equations

for heat conduction in the fins of air-cooled eugines.

- See Holthe, T.: De nye retningslinjer inden automobilog flyvemotortek-

nikken.

- See Hooker, Peter: A new aero engine. Stromboli.

- See James: Les moteurs au salon de 1922.

- See Hubendick, E.: Researches on the alcohol internal-combustion engine

problem.

- See Kutzbach K.: Adaptation of aeronautical engines to high-altitude

flying.

- See Kutzbach, K. : Flexible mounting of airplane engines.

- See Le Bidolec, A.: Le système moteuravion: L'accouplement différentiel.

- See Lee, Stephen M., and Stanwood W. Sparrow: Testing fuels for high-compression engines.

- See Leighton, B. G.: Recent developments in aircraft engines in the Navy.

- See Leighton, B. G., and R. M. Parsons: Wright-Navy development work

yields great increase in engine life.

- See Lorraine-Diétrich: Les performances du 400 c. v. Lorraine-Dietrich.

Engines. See Marks, Lionel S. : The airplane engine.

- See Martinot-Lagarde: Les accessoires du groupe motopropulsuer.

- See Martinot-Lagarde, C: Les groupes motorpropulseurs au salon.

- See Matthews, Robertson: Influences in the selection of a cycle for small

high-speed engines running on solid or airless injection with compression ignition.

- See Moffett, W. A. : The aeronautical engine.

- See Morris, J. : On the stability of aero engines.

- See Paris: Aeronautical engines at the Paris exposition.

- See Poincaré: La carburation dans les moteurs d'aviation.

- See Renault: Le travail des moteurs d'aviation Renault.

- See Ricardo, Harry R. : The internal-combustion engine. Vol. 1. Slow-speed engines.

- See Rieder, A.: Disturbing effect of free hydrogen on fuel combustion in

internal-combustion engines.

- See Rogers: The Rogers B-4 air-cooled engine.

- See Rolls-Royce: The Rolls-Royce Eagle IX aero engine.

- See Seymour, L. D.: Is the Liberty engine "obsolescent"?

- See Spad: Prove compiute con l'elica a passo variabile per l'apparecchio

Spad XIII con motore H. S. 44.

- See Sparrow, Stanwood Willston: The arithmetic of distribution in multi-cylinder engines.

- See Statax: Statax three-cylinder rotary engine.

- See United States—Bureau of Aeronautics—Navy Department: Catalogue

of assemblies and details of Curtiss D-12 engine without hand starter. Issued by Bureau of Aeronautics, Navy Department.

- See Vaillot, G. :Les moteurs Diesel et les moteurs semi-Diesel.

- See Ventou-Duclaux, L. : Les moteurs à deux temps.

- See Vincent, J. G.: Packard model 1551 300-horsepower airship engine.

- See Voskuil, B. L.: Machine installatie van het verkeershoogtevliegtuig.

- See Wright : A new power plant. Wright model T-3 aviation engine

- See Wright: Wright aeronautical engines.

- See Wright: The story of a remarkable engine endurance test. Wright

E-4 engine passes 300-hour test with full power.

England. Civil air transport and aerodrome organization in Great Britain. Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, pp. 167-169, ill.

- Current figures of British aviation.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 255-256, 293, ill.

- See Air Ministry: Health of the R. A. F. Report for 1921.

- See Great Britain.

■- See Listone, Samuel: The future of British aviation.

Engstromer, T. H. The international air traffic convention—Scandinavian points of view.

International Air Congress, London, 1923, Report, London, 1923, pp. 656-057.

Equipment. See Black, Archibald: Maintenance and operating equipment of airplane and seaplane stations.

- See Southwell, R. V.: Apparatus and equipment recently constructed in

the aerodynamics department of the National Physical Laboratory.

— See Wimperis, H. E.: Navigational equipment for long-distance flights.

Ericsson, Edward L. Maneuvering aircraft in formation.

Coast Artillery Journal, Vol. 58, No. 3 (Mar. 1923), Fort Monroe, Va., pp. 225-233, ill.

Ericsson, Nils. Flygplansmodellen, des konstruktion och tillverkning. Göteborg, 1922, p. 45.

Esnault-Pelterie. L'affaire Esnault-Pelterie en Cour d'Appel.

L'Aérophile, 31e année, Nos. 1-14 (1er jan.-15 juil. 1923), Paris, pp. 23-24, No. 3, xix-xx, 89-90, ' 116-117, 142-143, 220-222, ill.

Espagnol. See I. T.: Le concours Espagnol d'avions militaires.

Espitalher, Georges. See Renard, Paul: Notice biographique du lieutenant-colonel Georges Espitallier.

Easterbrook, L. F. Air force and air folly.

Nineteenth Century and Alter, Vol. 94 (Sept. 1923), New York, pp. 334-341.

Estimates. Air estimates.

Flight, Vol. 15, No. 32 (Aug. 9,1923), London, p. 480.

- Air estimates, 1923-24.

Flight, Vol. 15, Nos. 11-13 (Mar. 15-29, 1923), London, pp. 146-147, 159-163,175-176.

- $16,458,835 asked for naval air stations.

Aviation, Vol. 15, No. 15 (Oct. 8,1923), New York, pp. 441-442.

- See Great Britain: The air estimates.

Estoppet, George. Bombing moving ships.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 45-49.

Etalon. See Ushakoff, K. A. : Aerodynamical balance of the Etalon type.

Etevé, Albert. Le réglage de la distribution des moteurs à explosion. Paris, Editeus Panore et Ducrot.

Europe. Flugverkehrskarte von Mittel-Europa (m. d. Flugplänen sämtl. deutschen Flugverkehrslinien. Bearbeit. v. Ludw. Kapeller) (1 Aufl. 1 : 2,000,000.)

1922.

Evans, Elliott A. Some physical properties of lubricants.

International Air Congress, London, 1923, Report, London, 1923, pp. 533-544, ill., diagr.

Everling, E. The increase in dimensions of airplanes—weight, area, and loading of wings.

National Advisory Committee for Aeronautics, Technical Notes No. 132, Mar. 1923, Washington, p. 27, tahls., diagrs.

- Längsschwingungen von Flugzeugen.

Zeitschrift für Technische Physik, Vol. 4, No. 3, 1923, Leipsic pp. 82-88, ill.

- Zur Mechanik des Segelfluges.

Zeitschr. Flugt. Motorluftsch., 14, Jahrg., No. 17-22 (Nov. 21, 1923), Berlin, pp. 152-154.

- Wertung von Segelflügen.

Zeitschr. Flugt. Motorluftsch., 14, Jahrg., 17-22 Heft (Nov. 21, 1923), Berlin, pp. 135-136.

F. C. L'utilisation des moteurs d'aviation existant sur les appareils civils. L'Aérophile, 31e année. Nos. 23-24 (ler-15 déc. 1923), Paris, pp. 361-365, ill.

Fabrics. Report on further investigations of the effect of sunlight on airplane fabric.

Aeronautical Research Committee, Reports and Memoranda, No. 845 (M. 19), June 1922, London, 1923, p. 11, ill.

- See Prôll, A.: Experiments with fabrics for covering airplane wings, to

determine effect of method of installation.

Fage, A. The effect of \ large boss on air-screw performance.

Aeronautical Research Committee, Reports and Memoranda, No. 871 (Ae. 107), June 1923, London, 1923, p. 3.

- On the theory of tapered aerofoils.

Aeronautical Research Committee Reports and Memoranda No. 806 (Ae. 59) (Jan. 1923)» London, 1923, pp. 14, tabls., diagrs.

- Some suggestions for improving aeroplane control at low speeds.

Aeronautical Research Committee, Reports and Memoranda, No. 855 (Ae. 95), Feb. 1922, London, 1923, p. 6, tabls., diagrs.

Fairchild. Fairchild photographers fly about 25,000 miles in 1923.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, p. 38.

Fairchild, Sherman M. Photographing New York from the airplane.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 434-435, 460, ill,

Fairet, C. R. Seaplanes.

The Aeroplane, Vol. 24, No. 7 (Feb. 14, 1923), London, pp. 113-120. Flight, Vol. 15, No. 6 (Feb. 8, 1923), London, pp. 76-79.

- Seaplanes—present status of the question.

Aviation, Vol. 14, No. 10 (Mar. 12, 1923), New York, pp. 292-294.

Falcon. See Air screws: Falcon air screws. Faragher, R. G. Le Bourget—world's largest air port.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 258-259, 294, 111.

- How the French Government helps aviation.

Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, pp. 70,118.

- London-Paris—world's foremost airway.

Aeronautical Digest, Vol. 3, Nos. 3-4 (Sept.-Oct. 1923), New York, pp. 149-151, 255-266, ill.

- The most successful commercial aviation company in France.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 329. Compagnie Aérienne Française.

61287—26-4

Everson, William. The "aerocycle." A new departure in aerial locomotion.

TJ. S. Air Service, Vol. 8 No. 6 (May 1923), Washington, p. 23.

Etdam, P. Fittings and other structural parts of airplanes.

National Advisory Committee for Aeronautics, Technical Notes No. 160, Oct. 1923, Washington, p. 12 ills.

Etnac, Laurent. Aeronautics in the French colonies.

Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, p. 174.

- Commercial aviation in France.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 109-111, ill.

Etncourt, Eustice d', and John H. Norbeth. A proposed aircraft-carrying mail steamer.

Engineer, Vol. 135, No. 3508 (Mar. 23, 1923), London, pp. 323-325, ill.

Fabman. Farman designs 12-cylinder engine for aviation service.

Automotive Industries, Vol. 49, No. 4 (July 26, 1923), New York, p. 157, il .

■- The Farman "Moustique."

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 5 (Aug. 1, 1923), London, p. 128, ill.

- New Farman undercarriage.

Aerial Age, Vol. 16, No. 7 (July, 1923), New York, p. 335, ill.

- See France: Winners of the French "Grand Prix." Two new types of

Farman four-engined aeroplanes.

Farrbn, W. S. The calculation of stresses in a redundant structure by the method of comparison of deflections, with examples of its application to aeroplane design.

Aeronautical Research Committee Reports and Memoranda No. 769 (Ae. 52) (Oct. 1921), London, 1922, pp. 36, tabls., diagrs.

- The design of tapered wings.

Aeronautical Research Committee Reports and Memoranda No. 833 (Ae. 83) (July 1922), London, 1923, pp. 22, diagrs.

Fatjre, Andre. Le rendement financier de l'aviation marchande. Considérations sur l'établissement d'un projet de ligne aérienne. Conférence faite à la Société Française de Navigation Aérienne le 21 février 1923.

La Tech. Aéron., 14e année, n. s. Nos. 20-21 (15 juin-15 juil 1923), Paris, pp. 638-647, 679-691.

Faure-Favier, Louise. En mémoire de René Gasnier. Un monument et une course d'avions en Anjou.

L'Aêrophile, 31e année, Nos. 17-18 (ler-15 sept. 1923), Paris, p. 272, ill.

- Guide des voyages aériens, Paris-Lausanne.

Paris, 1922, pp. 66, ill.

- Le week-end aérien du Touquet-Paris-Place.

L'Aêrophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 195-197, ill.

- See Besançon, Georges: Les chevaliers de l'air.

■- See Bossoutrot, Lucien, et Louise Faure-Favier: La belle aventure du

"Goliath."

Favary, Ethelbert. Motor-vehicle engineering, Vol., 1, Engines their design and construction. Vol. 2, The chassis.

New York, McGraw-Hill, 1920. Vol. 1, pp. 330; 1922, Vol., 2, pp. viii, 468.

Fedden, A. H. R. Some problems of static radial air-cooled aero engines.

International Air Congress, London, 1923, Report, London, 1923, pp. 465-474.

FÉnÊRATioN Aéronautique Internationale. (Internationella Luftfartsför-bundet.) Stadgar och reglementen. Reviderade intill 1. januari 1923. Bihang: erkända internationella rekord intill 1. januari 1923. Stockholm, 1923, pp. 113.

- Réunion du Comité de la F. A. I. à Paris, le 3 janvier.

L'Aêrophile, 31e année, Nos. 1-2 (ler-15 jan. 1923), Paris, p. 26.

- See Contest officials: New F. A. I. ruling regarding contest officials.

- See Tissandier, Paul: Conférence de la Fédération Aéronautique Internationale à Gothembourg du 8 au 12 août 1923.

Feld haus, F. M. Luftfahrten einst und jetzt.

Berlin, 1923, pp. 125, ill.

Felix, J. La gironette Constantin.

La Nature, No. 2567 (June 16, 1923), Paris, pp. 379-384, ill.

Felton, Samuel M. Uses to be made of the highways of the air.

U. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 13-15.

Ferguson, Allen. See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

Fehson, Oliver S. War Department policy on Federal aid for municipal airdromes.

TJ. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, p. 32.

Fewster, T. H. Description of lift, vertical force, and drag balances for the roof of the duplex wind tunnel.

Aeronautical Research Committee Reports and Memoranda No. 823 (Ae 74) (Oct. 1922), London, 1923, pp. 4, ill., diagr.

Filson, L. N. G. The measurement of true height by aneroid.

Journal of Scientific Instruments, Vol. 1, No. 1 (Oct. 1923), London, pp. 1-8, ill.

FiNLANn. Finnisches Luftfahrtgesetz vom 25. Mai 1923.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 27-28 (15. Juli 1923), Berlin, pp. 305-306.

Fires. Concerning fires.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 3 (July 18, 1923), London, p. 75.

- The possible causes of fire in an aeroplane crash and the means that ean

be taken to lessen the fire risk.

Aeronautical Research Committee Reports and Memoranda No. 796 (P. 2) (Jan. 1922), London, 1923, pp. 30, ill., diagr.

- The prevention of fire.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 21 (May 23,1923), London, p. 383-384. Plight, Vol. 15, No. 31 (Aug. 2, 1923), London, p. 460.

- The prevention of fire in single-engined aeroplanes.

Aeronautical Research Committee Reports and Memoranda No. 795 (P. 1) (Jan. 1922), London, 1922, pp. 22, ill., diagr.

Fishery patrol. Fishery patrols by seaplane.

Science, n. s. Vol. 58 (Nov. 2, 1923), Garrison, p. 14.

Fiske, Bradley A. Torpedo plane and bomber.

U. S. Naval Institute Proceedings, Vol. 48, No. 235 (Sept. 1922), Wisconsin, pp. 1473-1478, ill.

Fisser, Johann Volkmar. Die Luftfahrt als Verkehrsmittel.

1922, pp. 192.

Fittings. See Eydam, P.: Fittings and other structural parts of airplanes. Flares. See Paulus, Charles Leigh: Modified Mark I airplane flare. Fleury, R. de. L'Alpax.

La Tech. Aéron., 14e année, n. s. No. 18 (15 avril 1923), Paris, pp. 583-591.

Flint, Charles R. Early reminiscences of the Wright brothers. Aviation, Vol. 15 No. 27 (Dec. 31, 1923), New York, pp. 797-798. ill.

Florida. See Newspaper delivery: Aerial newspaper delivery service in Florida.

Florman, Carl. Flygvapnet och Sveriges försvar. Stockholm, 1923, pp. 30.

FLUins. See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

Flying boats. The design, construction, and operation of flying boats.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 4 (Jan. 24, 1923), London, p. 63.

-- Flying-boat design and construction.

Aviation, Vol. 14, No. 7 (Feb. 12,1923), New York, p. 189.

- Flying boats.

Flight, Vol. 16, No. 4 (Jan. 25, 1923), London, pp. 54-55.

- See Rennie, J. D. : Some notes on the design, construction, and operation

of flying boats.

Fokker. The Fokker amphibian.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 3 (Jan. 17, 1923), London, pp. 49-60, 111. Aerial Age, Vol. 16, No. 2 (Feh. 1923), New York, pp. 69-70, ill.

- The Fokker amphibian flying boat.

Aviation, Vol. 14, No. 2 (Jan. 8,1923), New York, pp. 44-45, 111.

- The Fokker FB-11 flying boat.

The Aeroplane, Vol. 26, No. 20 (Nov. 14, 1923), London, p. 490, diagr.

- Fokker F-5 commercial transport.

Aerial Age, Vol. 16, No. 5 (May 1923), New York, pp. 218-219, 232, ill.

- Fokker F-5 commercial transport airplane.

Aviation, Vol. 14, No. 14 (Apr. 2,1923), New York, pp. 367-369, ill.

- Das neue Fokker-Verkehrsflugzeug F. V.

Luftfahrt, Bd. 27, No. 6 (June 14,1923), Berlin, p. 66, ill.

- Nouvel avion de transport Fokker F. V.

L'Aerophile, 31e année, Nos. 1-2 (ler-15 Jan. 1923), Paris, p. 28, ill.

- Performance test of Fokker TW-4 equipped with Curtiss OX-5 engine.

IT. S. Air Service Information Circular, Vol. 5: No. 414 (Apr. 1, 1923), Washington, Govern, ment Printing Office, pp. 5, ill.

- Wie der Fokker F4 den Distanz-Welt-Rekord schlug.

Der Luftweg, Heft 2 (12 Feh. 1923), Berlin, pp. 16-17, ill.

- See Langsdorf!, Werner v.: Das Fokker-Wasser-Landflugzeug.

- See Rijksstudiedienst voor de Luchtvaart Amsterdam: Drijfproeven, ver-

richt met een model van het Fokker FIII verkeersvliegtuig. Rapport V-20.

- See Rijksstudiedienst voor de Luchtvaart Amsterdam: Onderzoek naar

den invloed van een uitsnijding in den voorrand van het draagvlak van het Fokker F3-vliegtuig op de aerodynamische eigenschappen. Rapport A 29.

Folland, H. P. Aeroplane design.

Proceedings of the Institution of Aeronautical Engineers, No. 3, 1922, pp. 3-5,19-38, ill. London, 1923, pp. 40.

Paper read hefore the Institution of Aeronautical Engineers on March 31, 1922. Fonck, René. L'aviation et la sécurité française.

- See Besançon, Georges: Un livre va paraître: L'aviation et la sécurité

française.

Fontaine, G. Barrage balloons.

Coast Artillery Journal, Vol. 58, No. 2 (Feb. 1923), Fort Monroe, Va., pp. 141-143, ill.

- The value of barrage balloons.

Aviation, Vol. 14, No. 26 (June 25,1923), New York, p. 690.

Foot, E. L. Maj. E. L. Foot, M. C.

The Aeroplane, Vol. 24, No. 26 (June 27,1923), London, p. 478-b.

Ford, Henry. Next phase of automotive engineering.

U. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, p. 7.

Ford, James B. The Nichols wing-cutting equipment.

National Advisory Committee for Aeronautics, Technical Notes No. 172, Dec. 1923, Washington, pp. 6, ill.

Forestry. Operations of the aerial forest patrol, 1922.

Aviation, Vol. 14, No. 9 (Feb. 26, 1923), New York, pp. 242-244, ill.

Foster, Randall. Program and entries for St. Louis air meet.

Aviation, Vol. 15, No. 12 (Sept. 17, 1923), New York, pp. 342-344, map.

--Program for the St. Louis meet.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 241-242. TT. S. Air Service, Vol. 8, No. 10 (Oct. 1923), Washington, pp. 19-21, ill.

Fotjrnier, F. E. Carènes de formes nuisibles, ou favorables à leurs grandes vitesse; et résistances de l'eau à leurs translation. Paris, Gauthier-Villars et Cie., 1923, pp. 27.

Fox, Frank. Our air peril.

Outlook, Vol. 51, No. 1311 (Mar. 17, 1923), London, pp. 210-211.

France. Les chantiers aero-maritimes de la Seine.

Flight, Vol. 15, No. 30 (July 26, 1923), London, pp. 438-440, ill.

- Die Exterritorialität im Luftrecht.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 19 (13 Mai 1923), Berlin, pp. 222-223.

- France, mistress of the air.

Aerial Age, Vol. 16, No. 7 (July, 1923), New York, pp. 312-314. Literary Digest, Vol. 78 (Sept. 22, 1923), New York, pp. 26-27.

- France offers over 4,000,000 francs for aviation.

Aeronautical Digest, Vol. 3, No. 3 (Aug. 1923), New York, pp. 143-144.

- France revealed as the mistress of the air.

Literary Digest, Vol. 76 (Feh. 3, 1923), New York, pp. 70-71.

- Französische Verordnung über die Gewährung von Beihilfen für Touristenluftfahrzeuge vom 31.8.23.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 41 (14 Okt. 1923), Berlin, pp. 417-418.

- French air lines.

Aviation, Vol. 15, No. 5 (July 30, 1923), New York, p. 131, map.

- French commercial aviation progress.

Aviation, Vol. 15, No. 12 (Sept. 17,1923), New York, p. 346.

- Glimpses of the French aircraft industry.

Aviation, Vol. 14. No. 25 (June 18, 1923), New York, pp. 664-665.

- Ministère de la Guerre (Direction de l'aéronautique).

Guide pour les examinateurs des candidats aux brevets de mécanician d'aéronautique et aux certificats d'instruction technique. Paris, Editeurs Charles Lavauzelle et Cie.

- Regulations governing the issuance of certificates of airworthiness of aircraft in France.

National Advisory Committee for Aeronautics, Technical Notes No. 155, (Aug. 1923), Washington, pp. 46. From Bulletin de la Navigation Aérienne, Mar. 1923.

- Winners of the French "Grand Prix." Two new types of Farman four-

engined aeroplanes.

Flight, Vol. 15, No. 41 (Oct. 11, 1923), London, p. 617, ill.

- See Besançon, Georges: Un livre va paraître: L'aviation et la sécurité

française.

- See Brercton, L. H.: France—master of the air.

- See C. L. : La France et les États-Unis à l'assaut des records.

- See Eynac, Laurent: Commercial aviation in France.

- See Faragher, R. G.: How the French Government helps aviation.

- See Kellett, W. W. : Progress of commercial aviation in France.

Francis, H. A. The comparison of the maneuverability of aeroplanes by the use of a cinematograph camera.

Aeronautical Research Committee, Reports and Memoranda, No. 851 (Ae. 93), Dec, 1922, London, 1923, pp. 8, ill., tahls., diagrs.

Fravel, Ira F. Water-ballast recovery for airships.

Aviation, Vol. 15, No. 21 (Nov. 19,1923), New York, pp. 625-626, ill.

Frazer, R. A., and H. Bateman. Experiments on rigid airship R-32. Part IV. Note on measurements of airscrew thrust.

Aeronautical Research Committee, Reports and Memoranda, No. 814 (Ae. 65) (Sept. 1922), London, 1923, pp. 9, tahls., diagrs.

- Experiments on rigid airship R-38 (Z-R-2).

Aeronautical Research Committee, Reports and Memoranda, No. 764 (Ae. 46) (Nov. 1921), London, 1923, pp. 44, tabls., diagrs.

Frazer, R. A. Model aircraft.

Journ. Roy. Aer. Soc, Vol. 27, No. 147 (Mar. 1923), London, pp. 105-118, ill.

Frazer, R. A., and A. G. Gadd. The prediction of the resistance of rigid airship R-33.

Aeronautical Research Committee Reports and Memoranda, No. 827 (Ae. 78) (July 1922), London, 1923, pp. 23, tahls., diagrs.

Frazer, R. A. See Pannell, J. R., R. A. Frazer, and H. Bateman: Experiments on rigid airship R-32. Part 1 : Pressures on the upper fin and rudder.

- See Pannell, J. R., R. A. Frazer, and H. Bateman: Experiments on rigid

airship R-32. Part II : Controlability and turning trials.

- See Pannel, J. R., R. A. Frazer, and H. Bateman: Experiments on rigid

airship R-32. Part III: Measurements of resistance and airspeed.

Fresne, Pierre Gasnier du. See Blanehet, Georges: Aviateurs et aéronautes contemporains. Pierre Gasnier du Fresne.

Freyssinet. Hangars à dirigeables en ciment armé en construction à l'aéroport de Villeneuve-Orly.

Génie Civil, T. 83, Nos. 12, 13, 14 (Sept. 22, 29, Oct. 6, 1923), Paris, pp. 265-273, 291-297, 314-319, iU.

Fritsch, Walter. Segelflug und Flugzeug-Bauteehnik.

Schweizerische Bauzeitung, Bd. 81, No. 10 (Mar. 10, 1923), Zurich, pp. 119-121, ill.

Fritzes, C. E. Aero litteratur, 1910-1923.

Stockholm, Editeur, C. E. Fritzes Egl. Hofbokhandel, 1923, pp. 148.

Frost, Thomas H. Photoelastic method applied to rigid-airship research.

Journal of the Society of Automotive Engineers. Vol. 13, No. 6 (Dec. 1923), New York, pp. 497-498, ˇ11.

Fuchs, R. and L. Hopf. Handbuch der flugzeugkunde, Band II, "Aerodynamik."

Berlin, Richard Carl Schmidt & Co., 1922, pp. viii, 466, ill.

Reviewed in Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 3 (Jan. 17, 1923), London, pp. 50-52.

Fuel injection pump. See Matthews, Robertson, and A. W. Gardiner: The time lag and interval of discharge with a spring-actuated fuel-injection pump.

Fuels. France holds novel fuel-consumption race.

Aviation, Vol. 15, No. 8 (Aug. 20, 1923), New York, pp. 215-216.

Fuels. See Hardecker, John F.: Aeronautical fuel, lubricating, and cooling systems.

- See Hookham, F. J.: Fueling aircraft.

- See Kutzbach, K.: Results of experimental flights at high altitudes with

Daimler, Benz, and Maybach engines to determine mixture formation and heat utilization of fuel.

- See Lee, Stephen M., and Stanwood W. Sparrow: Testing fuels for high-compression engines.

- See Meyer, P.: Is there any available source of heat energy lighter than

gasoline?

-See Sperry, Elmer A.: A substitute for aviation gasoline that will not burn.

G

G. M. Moteurs et combustibles.

La Tech. Aéron., He année, n. s. Nos. 18-19 (15 avril-15 mai 1923), Paris, pp. 576-579, 607621, diagrs.

G. Elias. Performance test of G. Elias TA-1, Type XIV, equipped with Lawrence R-9 engine.

U. S. Air Service Information Circular, Vol. 5, No. 412 (Apr. 1, 1923), Washington, Government Printing Office, pp. 6, ill.

Gadu, A. G. See Cowley, W. L., A. G. Gadd, L. J. Jones, and Sylvia W. Skan: Biplane investigation with R. A. F., 15 section. Part III. Tests at various staggers and gap chord ratios.

- See Frazer, R. A., and A. G. Gadd: The prediction of the resistance of

rigid airship R-33.

Gallo, G., e M. Tenani. Un nuovo tipo di viscosimetro.

Comm. Aeron. Rend. Teen., Anno 11, N. 3 (15 Ott. 1923), Roma, 1923, pp. 21-30, ill.

Gamba, Pericle. Le caratterististiche dell'atmosfera terrestre in val Padana. Venezia, 1923.

Garber, Paul Edward. The Cayley historical helicopter.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, p. 51, ill.

Gardiner, A. W. See Matthews, Robertson, and A. W. Gardiner: The time lag and interval of discharge with a spring-actuated fuel-injection pump.

Garros. See M. L.: L'avion de Garros au Musée de l'Aéronautique.

Garsaux, P. Le nouveau laboratoire a depression atmospherique et a basse temperature du Bourget.

International Air Congress, London, 1923, Report, London, 1923, pp. 709-727, ill.

Gasnier, Rene. See Faure-favier, Louise. En mémoire de Rene Gasnier. Un monument et une course d'avions en Anjou.

Gasoline. Water from burnt gasoline in airships.

Science, n. s., Vol. 58 (Nov. 9, 1923), Garrison, N. Y., p. 10.

Gatler, Marie L. V. The constitution and age-hardening of alloys of aluminum with copper, magnesium, and silicon in the solid state.

Aeronautical Research Committee, Reports and Memoranda, No. 839 (M. 14), June, 1922, London, 1923, pp. 28, tabls., ill.

- The constitution and age-hardening of the ternary alloys of aluminum

with magnesium and copper.

Aeronautical Research Committee, Reports and Memoranda, No. 840 (M. 15), Dec. 1922, London, 1923, pp. 19, ill., tabls.

Gbddes, A. E. M. See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

Geography. Measurements of the earth's surface.

TJ. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, p. 32. Geology. See Christie, M. G. : Geology as an aid to air navigation.

- See Mitchell, William: Aviation and geology.

Georqe, H. L. See Merchants' exchange trophy: Lieut. H. L. George wins merchants' exchange trophy race.

Geohgh, Walter. Der Segelflug und seine Kraftquellen im Luftmeer.

Berlin, Klasing & C, 1923, pp. 88.

- Statischer Segelflug über Flachküsten.

Zeitschr. Flugt. Mortorluftsch.. Bd. 14, No. 13-14 (July 20, 1923), Berlin, pp. 114-115, ill.

Gerhardt, W. F. The De Bothezat barograph, type "A."

U. S. Air Service Information Circular, Vol. 5, No. 439 (May 1,1923), Washington, pp. 11, ill.

Germany. The development of soaring flight in Germany.

Aer. Eng. Snppl. The Aeroplane, Vol. 25, No. 3 (July 18, 1923), London, p. 76.

- German air lines.

Aviation, Vol. 15, No. 2 (July 9, 1923), New York, p. 50, map.

- German gliding contests for 1923.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 18 (Apr. 18, 1923), London, pp. 288-290.

- Gesetz, betreffend Abkommen zwischen Deutschland und Dänemark zur

Regelung des Luftverkehrs.

Nachrichten für Luftfahrer, Jahrg. 4, Nr-20 (20 Mai 1923), Berlin, pp. 229-232.

-- Gliding progress in Germany.

Aviation, Vol. 15, No. 10 (Sept. 3, 1923), New York, p. 271.

- Le survol de l'Allemagne par les Avions alliés.

LAérophile, 31e année, Nos. 11-12 (ler-15 juin 19231, Paris, pp. 179-181.

See Blythe, P. R.: The aeronautical situation in Germany.

- See Kasinger, F. : Die derzeitige Lage der deutschen Luftfahrt.

Giacomelli, Raffaele. Atti della Ass. Italiana di aerotecnina. Roma, 1922.

Gibbs, Philip. Watching the early travelers in the air.

U. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, pp. 22-24.

Gibson, A. H. See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

Gillies, H. D. The benefits of plastic surgery as applied to air casualties.

International Air Congress, London, 1923, Report, London, 1923, pp. 738-747, ill.

Glauert, H. An aerodynamic theory of the airscrew.

Aeronautical Research Committee, Reports and Memoranda, No. 786 (Ae. 43) (Jan. 1922), London, 1922, pp. 20.

- Calculation of the rotary derivatives due to yawing for a monoplane wing.

Aeronautical Research Committee, Reports and Memoranda, No. 866 (Ae. 103), Feb. 1923 , London, 1923, pp. 9.

- The Handley Page slotted wing.

Aeronautical Research Committee, Reports and Memoranda, No. 834 (Ae. 84) (Mar. 1922), London, 1923, pp. 4, tabls., diagrs.

>

Glauekt, H. The interference of wind channel walls on the aerodynamic characteristics of an aerofoil.

Aeronautical Research Committee, Reports and Memoranda, No. 867 (Ae. 104), Mar. 1923, London, 1923, pp. 7.

- A method of calculating the characteristics of a tapered wing.

Aeronautical Research Committee, Reports and Memoranda, No. 824 (Ae. 76) (Oct. 1922), London, 1923, pp. 8.

- Notes on the vortex theory of air screws.

Aeronautical Research Committee, Reports and Memoranda, No. 869 (Ae. 105), Dec. 1922, London, 1923, pp. 6, tabls., diagrs.

- Some aspects of modern aerofoil theory.

International Air Congress, London, 1923, Report, London, 1923, pp. 245-255.

- Theoretical relationships for the lift and drag of an aerofoil structure.

Journ. Roy. Aer. Soc, Vol. 27, No. 154 (Oct. 1923), London, pp. 512-518.

Glauekt, Muriel. Two-dimensional aerofoil theory.

Journ. Roy. Aer. Soc, Vol. 27, No. 151 (July 1923), London, pp. 348-366.

Glazebrook, Richard Tetlet. Standardization of methods of research. Flight, Vol. 15, No. 26 (June 28,1923), London, pp. 347-350, ill. International Air Congress, London, 1923, Report, London, 1923, pp. 21-38, ill.

Gleaves, A. Has sea power passed?

Scient. Amer., Vol. 129 (Nov. 1923), New York, pp. 313-314, ill.

Glider. American glider and some glider ways.

Literary Digest, Vol. 77 (Apr. 21, 1923), New York, pp. 72-73.

- "Flight" glider designing competition. Identity of successful competitors.

Flight, Vol. 15, No. 16 (Apr. 19, 1923), London, pp. 211-214, diagr.

- "Flight" glider designing competition prize divided between two competitors.

Flight, Vol. 15, No. 14 (Apr. 12. 1923), Londoo, pp. 195-198, ill., diner. -"Flight" glider designing competition. "Turkey Buzzard."

Flight, Vol. 15, Nos. 17-19 (Apr. 26-May 10, 1923). London, pp. 229-230, 242-244, 253, ill.

- French glider crosses the English channel for a record.

Current Opinion, Vol. 75 (July 1923), New York, p. 89, map.

- Glider meet in America.

Literary Digest, Vol. 77 (May 26, 1923), New York,pp. 73-75.

- Mr. Wright disparages the glider.

Literary Digest, Vol. 76 (Jan. 6, 1923), New York, pp. 59-60, ill.

- Starting gliders from kite balloons.

Flight, Vol. 15, No. 18 (May 3, 1923), London, pp. 237-238, ill.

- The "Turkey Buzzard" glider.

Aviation, Vol. 15, No. 8 (Aug. 20, 1923), New York, p. 220, diagr.

- Value of gliders to aeronautical progress.

Aviation, Vol. 14, No. 11 (Mar. 12, 1923), New York, p. 296, ill.

- See Blume, Walter: Description of the Hannover glider Vampyre.

- See Czechoslovakia: Some Czecho-Slovak gliders.

- See Langsdorf!, W. v.: Bemerkungen zum Klein-Flugzeugbau.

- See Ogilvie, Alec: Gliders.

- See Ogilvie, Alec: Gliders and light planes.

Glider. See Ogilvie, Alec: Gliders and their value to aeronautical progress.

- See Roch6, J. A.: Report on gliders.

- See Royse, M. W.: Birth of a new sport.

- See Sutherland: The Duke of Sutherland motor glider competition.

GLiniNG. French pilots make new gliding records.

Aviation, Vol. 14, No. 7 (Feb. 12, 1923), New York, p. 193.

- The future of gliding.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 26 (June 27, 1923), London, p. 481.

- Gliding and gliders at Itford.

Proceedings of the Institution of Aeronautical Engineers, No. 5, 1923, London, pp. 18-23.

- Gliding and low-power flying.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 16 (Apr. 11,1923), London, p. 274.

- Gliding flight.

Zeitschr. Flught. Motor luftscb., Vol. 14, No. 17-22 (Nov. 21, 1923), Berlin, pp. 147-160.

- See Ackeret, J.: Ein Beispiel zum statischen Segelflug.

- See Eisenlohr, Roland: Der Rhön-Segelflug Wettbewerb 1923 in seiner

technischen Auswertung.

- See Everling, E.: Wertung von Segelflügen.

- See Fritsch, Walter: Segelflug und Flugzeug-Bautechnik.

- See Georgii, Walter: Statischer Segelflug über Flachküsten.

- See Germany: Gliding progress in Germany.

- See Katzmayr, R.: Der motorlose Flug.

- See Kiemin, Alexander: Gliding theory and the operation of gliders.

- See Klemin, A.: How the glider flights of German students have brought

about a new era in aeronautics.

- See Lafay: Sur l'emploi possible du microphone pour faciliter le vol ä

voile.

- See Langsdorff, Werner v.: Der erste Küsten-Segelflug.

- See Meyer, Erich: Segelflug.

- See Suffrin-Hebert, H.: L'avion sans moteur.

- See Tevis, M.: Sliding downhill on the air.

- See Weiss, J. Bernard: Gliding and soaring flight.

- See Wulpiller, Robert: Segelflug.

Gloucestershire. The Gloucestershire "Gannet" light plane 750 c. c. two-cylinder two-stroke engine.

Flight, Vol. 15, No. 40 (Oct. 4, 1923), London, pp. 609-611, ill., diagr.

- Two new Gloucestershire machines.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 2 (July 11, 1923), London, p. 52, ill.

Gnosspelicopter. The trials of the Gnosspelicopter.

The Aeroplane, Vol. 24, No. 22 (May 30, 1923) London, p. 408, ill.

Gnosspelius. The Gnosspelius light airplane.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 19 (May 9, 1923), London, pp. 344-348, ill., diagr.

Flight, Vol. 15, No. 22 (May 31, 1923), London, pp. 292-295, ill.

Gnosspelius, 0. T. Experimental data without a wind channel.

Proceedings of the Institution of Aeronautical Engineers, No. 5, 1923, London, pp. 3-10, 11-17, m.

Gnott, E. N. Infantile paralysis in airplane industry.

TJ. S. Air Service, Vol. 8, No. 5 (May, 1923), Washington, pp. 26-26.

Göttinoen. Aerodynamische Versuchanstalt. Ergebnisse deraerodynamische Versuchsanstalt zu Göttingen.

München und Berlin, R. Oldenbourg, 1921; 1923.

Goliah. See Bossoutrot, Luden, et Louise Faure-Favier: La belle aventure du "Goliah."

Goodwin, E. S. Seaplanes. Taking off and alighting.

Aeronautical Research Committee, Reports and Memoranda, No. 784 (Ae. 37) (Dec. 1921), London, 1922, pp. 10.

Goodyear. Goodyear Co. purchases Zeppelin patents.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, p. 42.

- The Goodyear-Zeppelin airship deal.

Flight, Vol. 16, No. 48 (Nov. 29, 1923), London, p. 723.

- See Litchfield, P. W. : The Goodyear Tire & Rubber Co. has entered

into an agreement to control the Zeppelin rights for the United States.

- See Zeppelin: Goodyear Co. acquires Zeppelin airship patents.

GounoN, J. W. Generalized linear perspective: Treated with special reference to photographic land surveying and military reconnaissance.

London, Bombay, and Sydney. Constable & Co. (Ltd.), 1922, pp. 16, 184.

Gordon-Bennett. Belgium again wins Gordon-Bennett race.

Aviation, Vol. 16, No. 16 (Oct. 8, 1923), New York, pp. 438-439, ill.

- General regulations of national balloon race.

Aviation, Vol. 14, No. 26 (June 18, 1923), New York, pp. 668-669.

- Gordon-Bennett balloon race.

Flight, Vol. 16, No. 42 (Oct. 18, 1923), London, p. 64S.

- Gordon-Bennett balloon race. Fatal accidents mar historic contest.

Flight, Vol. 16, N0..39 (Sept. 27, 1923), London, p.-584.

- Rules of the Gordon-Bennett cup for 1923.

Aviation, Vol. 15, No. 4 (July 23,1923), New York, p. 100.

- See Lemoine, Jean: Les accidents de la Coupe Gordon-Bennett des ballons

et l'électricité atmosphérique.

- See R. L.: La Xlle Coupe Gordon-Bennett des sphériques.

Gorsse, H. J. A. de. Cinq semaines en aéroplane. Paris, 1923, pp. 95, ill.

Gothembourg. See R. D.: L'exposition aéronautique internationale et la semaine d'aviation de Gothembourg.

- See Tissandier, Paul: Conférence de la Fédération Aéronautique Internationale à Gothembourg du 8 au 12 août 1923.

Gothenburg. Gothenburg international aero exhibition 1923.

Flight, Vol. 15, Nos. 29-34 (July 19-Aug. 23, 1923), London, pp. 402-415, 423-432, 445-453, 481-484, 49CM95, 508-511, ill.

- The Gothenburg international aero show. List of exhibitors.

Flight, Vol. 15, No. 24 (June 14, 1923), London, pp. 318-319.

- Gothenburg international aeronautical exposition.

Aviation, Vol. 15, No. 14 (Oct. 1, 1923), New York, pp. 412-413.

- On Gothenburg.

The Aeroplane, Vol. 25, No. 6 (Ang. 8,11923), London, p. 148.

Gothenburg. Prize awards at Gothenburg.

Flight, Vol. 15, No. 35 (Aug. 30, 1923), London, p. 516.

- Some impressions from the I. L. U. G. (Gothenburg).

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 6 (Aug. 8, 1923), London, p. 160.

- See Bridgman, L. : The exhibits at Gothenburg.

- See Grey, Charles Grey: British aircraft at Gothenburg.

- See Instruments: Instrument board displayed at Gothenberg.

Goussot, C. M. Précis de photographie aérienne. >

Paris, Editeur Chirin, pp. 184, ill.

Goifs. See Peyriller, E. : Aviateurs contemporains. Le Colonel de Goys.

Grace, S. F. Free motion of a sphere in a rotating liquid parallel to the axis of rotation.

Proc. Roy. Soc. London, Ser. A., Vol. 102, No. 714, 1922, pp. 89-111.

Grauis, Gaston. Les ballons dirigeables. Paris, Edité par R. Hermleu, 1923.

Grand prix de la Moto-Aviette. "Grand prix de la Moto-Aviette" reviewed. Aviation, Vol. 15, No. 8 (Aug. 20,1923), New York, pp. 213-215, ill.

Grard, C. L'unification et les produits standards dans l'aéronautique.

International Air Congress, London, 1923, Report, London, 1923, pp. 119-137.

Grasso, Costantino. L'artefice meccdnico costruttore. Ovvero la resistenza dei materiali spiegata all'operaio. Napoli, 1922, pp. 223, ill.

Grat, James G. On the application of the gyroscope to the solution of the "vertical" problem of aircraft.

Proc. Roy. Soc. Edinburgh, Vol. 42, Pt. 3, sess. 1921-22, Edinburgh, pp. 257-317, ill.

Great Britain. Aeronautics in 1922.

Engineer, Vol. 135, No. 3497 (Jan. 7, 1923), London, pp. 10-12, ill.

- Air Council. Agreement made with the British, foreign, and colonial corporation, ltd., providing for the formation of a heavier-than-air transport company, to be called the Imperial Air Transport Co., Ltd.

Air Ministry, Parliament. Papers by command. Comd. 2010, London. H. M. Stationery Office, 1923, pp. 15.

- The air estimates.

Engineer, Vol. 135, No. 3510 (Apr. 6, 1923), London, p. 357.

- Air Force act. An act to provide for the discipline and regulation of the

Air Force. Being the Army act modified in accordance with the provisions of the Air Force (constitution) act, 1917.

[Revised to include all amendments made down to the date of the passing of the Army and Air Force (annual) act, 1922.]

London, H. M. Stationery Office, [Printed by Eyre and Spottiswoode, ltd.], 1922, pp. xi. 126.

- Air ministry. Medical notes in connection with commercial aircraft . .

Air Ministry. November 1922.

London, H. M. Stationery Office, [Printed hy Eyre and Spottiswoode, ltd.], 1922, pp. 21. ill. C. A. publication 3.

- Air Ministry. Report on government financial assistance to civil air

transport companies.

London, His Majesty's Stationery Office, 1923, pp. 18.

- Britain as an air power. To be or not to be.

Flight, Vol. 15, No. 29 (July 19,1923), London, p. 415.

Great Britain. Britische Ausführungsbestimmungen zur Luftfahrtverordnung 1922.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 11-14 (18. März-8. April 1923), Berlin, pp. 110111, 134-136, 148, 157-159.

- Britische Luftfahrt-Verordnung vom 20, Juni 1922.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 1-5 (7. Jan.-4, Feh. 1923), Berlin, pp. 2-5, 14-16, 26-28, 38-39, 50-52.

- Civil aviation advisory board. Report on aerodrome facilities of London.

London, His Majesty's Stationery Office, 1923, pp. 8. Parliament. Papers by command. Cmd. 1816.

- Gross-Britannien. Der Funfdienst auf Zivilluftwegen. Veröffentlichung

des englischen Luftministeriums.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 5 (4. Feh. 1923), Berlin, pp. 53-55.

- The monthly air force list June 1923.

London, His Majesty's Stationery Office, 1923 (corrected to 15th May 1923, 1-3056, 1-xilv.

- The monthly Air Force List. July 1923. Corrected to 15th June 1923.

London, His Majesty's Stationery Office, 1923, 1-3070, xxiv.

- The new British airway subsidy scheme.

Aviation, Vol. 14, No. 13 (Mar. 26, 1923), New York, pp. 340-341.

- On the air debate.

The Aeroplane, Vol. 24, No. 12 (Mar. 21, 1923), London, pp. 205-208, 217.

- On the air force, the estimates and the navy.

The Aeroplane, Vol. 24, No. 11 (Mar. 14, 1923), London, pp. 190-192

- On the British air policy.

The Aeroplane, Vol. 25, Nos. 17,19 (Oct. 24, Nov. 7, 1923), London, pp. 413-416, 454-456.

- On the Lords and the Commons and the air.

The Aeroplane, Vol. 24, No. 13 (Mar. 28, 1923), London, pp. 226-228, 239.

- Progress of British civil aviation, 1922-1923.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, pp. 184-186.

- Secret British aircraft development. Thirteen manufacturers engaged in

war work.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, p. 136.

- See Aeronautical Research Committee.

- See Avro: Rigging notes. Avro. biplane, type 504-K. (100-horsepower

Monosoupape).

- See Bombing: Bomb dropping for coast defense; a vital force for Britain.

- See England.

- See Estimates: Air estimates.

- See Grey, Charles Grey: Problems of the British aircraft industry.

- See Helicopters: British Air Ministry's helicopter competition.

- See Helicopters: The British helicopter competition.

- See International Air Congress: International Air Congress.

- See Joynson-Hicks, William: An imperial air service.

- See Kerr, Mark: The air and the Empire.

- See Royal Air Force: King's regulations and orders for the Royal Air Force.

Green, F. M. Air travel with special reference to the helicopter.

Aerial Age, Vol. 16, No. 6 (June 1923), New York, pp. 268-270.

Journ. Roy. Aer. Soc, Vol. 27, No. 161 (July 1923), London, pp. 322-337.

Gbeen, F. M. and W. S. Renwick. Note on temperature measurements.

Aeronautical Research Committee, Reports and Memoranda, No. 853 (F. 4), Nov. 1922, London, 1923, pp. 4, diagr.

Gregg, Willis Rat. Aviation's prominent place.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, p. 18.

- What the Weather Bureau is doing for aviation.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 120-123, 111.

Gregg, Willis R., and J. Parker Van Zandt. The wind factor in flight: An analysis of one year's record of the air mail.

United States Department of Agriculture, Weather Bureau. Reprinted from the Monthly Weather Review, Mar. 1923, 51: 111-125, ill. TJ. S. Air Service, Vol. 8, No. 9. (Sept. 1923), Washington, pp. 15-17, ill.

Grey, Charles Grey. Aircraft in war.

The Aeroplane, Vol. 25, Nos. 25-26 (Dee. 19-26, 1923), London, pp. 578-580, 598-600.

- Airmen pilots.

The Aeroplane, Vol. 25, No. 24 (Dec. 12, 1923), London, pp. 568-562.

- All the world's aircraft, 1923.

London, Sampson Low, Marston & Co., 1923, pp. 435, ill.

- British aircraft at Gothenburg.

The Aeroplane, special Gothenburg issue, 1923, London, pp. 70, ill.

- The Dominion Prime Minister at Croydon.

The Aeroplane, Vol. 25, No. 20 (Nov. 14, 1923), London, p. 478, ill.

- Mr. Wells and civil aviation.

The Aeroplane, Vol. 25, No. 21 (Nov. 21, 1923), London, pp. 498-500.

- On 1922.

The Aeroplane, Vol. 24, Nos. 1-3 (Jan. 3-17, 1923), London, pp. 1-3, 21-22, 41-42.

- The pacifying of Constantinople.

The Aeroplane, Vol. 25, Nos. 22-23 (Nov. 28-Dec. 5, 1923), London, pp. 518-520, 538-542.

- Problems of the British aircraft industry.

Aviation, Vol. 14, No. 20 (May 14, 1923), New York, pp. 528-529.

- See Lee, Charles E.: Aircraft yearbook, 1923, compiled by Charles E.

Lee, edited by C. G. Grey.

Griffiths, J. C. See Jones, B. Melvill, and J. C. Griffiths: Recent experiments in aerial surveying by vertical photographs.

- See MacLeod, M. N.: Recent developments of air photography. 1. The

adjustment of air photographs to surveying points. 2. The mapping of large areas of unsurveyed country. B. Melvill Jones and J. C. Griffiths.

Grimault, P. La construction des avions en France et à l'atranger.

Aéronautique, 5e année, No. 55 (dée, 1923), Paris, pp. 509-516, ill.

Grogan, J. D. Report on the influence of calcium and of calcium plus silicon on aluminium.

Aeronautical Research Committee, Reports and Memoranda, No. 832 (M. 12), (May 1922), London, 1923, pp. 7, m.

- See Rosenhain, W., and J. D. Grogan: Report on the effects of overheating and repeated melting of aluminium.

Grosvenor cup. The Grosvenor challenge cup.

Flight, Vol. 15, No. 26 (June 28, 1923), London, pp. 342-346, ill.

- On the Grosvenor cup race.

The Aeroplane, Vol. 24, No. 26 (June 27, 1923), London, pp. 473-478-A.

Grow, H. B. The passing of sea power?

Aeronautical Digest, Vol. 3, No. 6 (Dee. 1923), New York, p. 420.

Gruber, O. v. Der Stereoplanigraph der Firma Carl Zeiss, Jena. Zeitschrift für Instrumentenkunde, 1923.

- Der v. Orel-Zeissische Stereo-Autograph, Modell 1914, mit Zusatz-Vorrichtung für Ausarbeitung von Luftaufnahmen.

Intern. Archiv für Photogrammetrie, 1922.

- Die Perspektiven und optischen Verhältnisse bei der Entzerrung von

Fliegerbildern.

Zeitschrift für Instrumentenkunde, 1922.

- Der Zeissische Stereoplanigraph.

Bauingenieur, Bd. 4, No. 21 (Nov. 15, 1923), Berlin, pp. 584-588, ill.

GuAiTA, Eugen. Gedanken über ein neues Verkehrsflugzeug für den Osten. Der Luitweg, Heft 1 (12. Jan. 1923), Berlin, p. 3.

Günther, Otto. Luftgekühlte Sternflugmotoren.

Motorwagen, Bd. 25, No. 32 (Nov. 20, 1922), Berlin, pp. 608-611, ill.

GuiDi, Guido. Sui recenti successi aviatori.

Atti Assoc. Ital. Aeroteen., 1923, Vol. 3, N. 1, Roma, 1923, pp. 5-11.

Guidoni, Alessandro. Motori a combustione interna e turbine a gas.

Com. Aer. Int. Gen. Rend. Tech. Dir. Sup. Gen. Costr. Aeron., Anno 11, N. 3 (15 Ott. 1923), Roma, 1923, pp. 5-8, ill.

- Reorganization of aeronautics in Italy.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 127-128, ill.

Guillet, Léon. Récents progrés dans la fabrication et l'utilisation des alliages. Journ. Phys. Rad., Ser. VI, T. 4, No. 3 (mars 1823), Paris, pp. 89-114, diagr.

Guns. Cannon and machine guns for use on aircraft.

Aviation, Vol. 15, No. 6 (Aug. 6, 1923), New York, pp. 156-160, ill.

Guynemer. Inauguration du monument Guynemer à Compiègne. L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris,,p. 329.

- See R. L. S.: L'inauguration du monument Guynemer à poelcapelle.

Gyroscopes. See Bouasse, H. : Gyroscopes et projectiles.

H

Hafpner, Camillo, und Erich Osterland. Handbuch für Flugzeug-Konstrukteure. Eine übersichtl. Anleitung z. Berechnung u. z. Bau v. Flugzeugen.

1922, pp. 202, ill.

Hall, W. P. America and her flyers.

U. S. Air Service, Vol. 8, No. 2 (Feh. 1923), Washington, pp. 12-13.

Halstead, Arthur. Aircraft terminals and the safety code.

Aeronautical Digest, Vol. 2, No. 2 (Feh. 1923), New York, pp. 91-92, map.

Halton. No. 1 school, Halton, the technical training school for aircraft apprentices (R. A. F.).

Flight, Vol. 15, No. 40 (Oct. 4, 1923), London, pp. 612-613.

Hamby, William H. See Davis, W. J., and William H. Hamby: Air to let.

Hammer, William J. A brief consideration of the work of Wilbur and Orville Wright.

U. S. Air Service, Vol. 8, No. 12 (Dee. 1923), Washington, pp. 16-17, ill.

Handasyde. The Handasyde light plane.

Flight, Vol. 15, No. 38 (Sept. 20, 1923), London, pp. 563-566, ill.

Hangars. Seaplane hangar at Copenhagen.

Engineer, Vol. 136, No. 3529 (Aug. 17, 1923), London, pp. 176,180-183, ill.

- See Brebera, A.: Hangars auf dem staatlichen Flugplatz in Kbel bei Prag.

- See Freyssinet: Hangars à dirigeables en ciment armé en construction à

l'aéroport de Villeneuve-Orly.

- See Leitholf, O. : Die erste Drehalle für Luftschiffe.

- See Lessage, André: Hangar en béton armé, pour avions, construit pour le

service technique de l'aéronautique à Viliacoublay.

- See Sattler, H.: Neuzeitliche Hallen für Flugzeuge.

- See Smith, Hilmar F.: Huge airship hangar for U. S. Army: Scott Field,

Illinois.

Hankin, E. H. The soaring flight question.

Proceedings of the Institution of Aeronautical Engineers, No. 8,1923, pp. 23-38, ill.

Hankins, G. A. Preliminary report on the properties of commercially pure nickel as a standard material for fatigue investigations.

Aeronautical Research Committee, Reports and Memorandum, No. 789 (M. 11), (Nov. 1921), London, 1922, pp. 8.

Hannover. See Madelung, Georg H.: The development of the Hannover sailplane.

Hanson, D., and Marie L. V. Gatler. The heat treatment and mechanical properties of alloys of aluminum with small percentages of copper.

Aeronautical Research Committee, Reports and Memorandum, No. 841 (M. 16), Dec. 1922, London, 1923, pp. 12, tahls.

Hardecker, John F. Aeronautical fuel, lubricating, and cooling systems.

Aerial Age, Vol. 16, No. 2 (Feb. 1923), New York, pp. 60-62, 90, ill.

Harper, Daniel Roberts, and W. B. Brown. Mathematical equations for heat conduction in the fins of air-cooled engines.

National Advisory Committee for Aeronautics, Report No. 158, Mar. 1,1923, Washington, Government Printing Office, 1923, pp. 32, diagrs.

Harrison, George B. An institute of aero engineers.

TJ. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 35-36.

Hart, Ivor Blashka, and Walter Laidler. Elementary aeronautical science. Oxford, Clarendon Press; London, Oxford University Press, 1923, pp. vi-288.

Hart, Ivor Blashka. Leonardo da Vinci as a pioneer of aviation.

Journ. Roy. Aer. Soc, Vol. 27, No. 149 (May 1923), London, pp. 244-269, ill.

- Leonardo da Vinci's manuscript on the flight of birds.

Journ. Roy. Aer. Soc, Vol. 27, No. 160 (June 1923), London, pp. 289-317, ill.

Hartney, Harold E. Awakening aeronautical America.

TJ. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 31-32.

- Why the United States will lead in air transportation.

Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, pp. 81,122.

Haven, G. B. A constant load rate testing machine for textiles.

Proc. 26, Annual Meeting Amer. Soc. Testing Materials, Vol. 23, Part II, 1923, pp. 640-655.

Hay, G. R. Supplying pilots of London-Continental air routes with weather forecasts.

TT. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, pp. 17-19.

Heald, C. B. The human machine in aviation.

International Air Congress, London, 1923, Report, London, 1923, pp. 727-730.

Heath. The Heath "Favorite" plane..

Aviation, Vol. 15, No. 26 (Dec. 24, 1923*), New York, p. 769, ill.

Heffernan, L. G. Border patrol—past and present.

U. S. Air Service, Vol. 8, No. 10 (Oct. 1923), Washington, pp. 34-36.

Heidelberg, V., and A. Holzel. Speed measurement made by Division A of the airplane directorate (Flugzeugmeisterei) subdivision for flight experiments. National Advisory Committee for Aeronautics, Technical Notes No. 147, July 1923, Washington, pp. 11, tabls., diagrs.

Heinkel. A German convertible machine.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 24 (June 13, 1923), London, pp. 440-442, ill.

Heisenberg, Werner. Absolute dimensions of Karman vortex motion.

National Advisory Committee for Aeronautics, Technical Notes No. 126, Jan. 1923, Washington, pp. 10, diagrs.

Helbig, Demetrio. Nuova miscela fumigena.

Comm. Aeron. Rend. Teen., Anno 11, N. 3 (15 Ott. 1923), Roma, 1923, pp. 9-10.

Helicopters. The Air Ministry's helicopter competition.

The Aeroplane, Vol. 24, No. 21 (May 23,1923), London, p. 388.

- British Air Ministry's helicopter competition.

Aviation, Vol. 14, No. 22 (May 28, 1923), New York, pp. 582-583.

- The British helicopter competition. Prizes of £50,000 offered.

Flight, Vol. 15, No. 20 (May 17, 1923), London, pp. 263-264.

- En hélicoptères.

L'Aêrophile, 31e année, Nos. 9-10 (ler-15 mai 1923), Paris, p. 143.

- Helicopter calculations.

Aviation, Vol. 15, No. 8 (Aug. 20, 1923), New York, p. 216.

- Les hélicoptères.

L'Aêrophile, 31 éannée, Nos. 5-6, (ler-15 mars 1923), Paris, p. 66.

- Our Army's helicopter.

Scient. Amer., Vol. 128 (Apr. 1923), New York, p. 243, ill.

- Official regulations governing British helicopter competition.

Aerial Age, Vol. 16, No. 6 (June 1923), New York, pp. 278-279.

- Pioneer helicopter flies with two passengers.

Current Opinion, Vol. 74 (Apr. 1923), New York, pp. 475-176, ill.

- Progress in helicopters.

Aviation, Vol. 14, No. 8 (Feb. 19, 1923), New York, p. 209.

- Will captive helicopters replace the observation balloon?

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 9-11, ill.

- See Air Ministry: The Air Ministry helicopter prizes.

- See Air Ministry: Les derniers vols en hélicoptère et le prix de l'Air

Ministry.

- See Bothezat, George de: The De Bothezat helicopter.

- See Bothezat, George de: New trials of Do Bothezat helicopter.

- See Bothezat, George de: Successful helicopter trials at McCook Field.

The De Bothezat helicopter lifts 3,600 pounds with 170 horsepower.

- See Brennan: The Brennan helicopter.

- See Green, F. M.: Air travel with special reference to the helicopter.

- See I. T.: Succès des essais de l'hélicoptère (Emichen.

61287—26-5

Helicopters See Margoulis, William: Les hélicoptères.

- See Oehmichen-Peugeot : The Oehmichen-Peugeot helicopter.

- See Pescara: Pescara détenteur du record de durée hélicoptère.

- See R. D. : Les hélicoptères.

- See Vuia, T.: Les machines à ailes rotatives et les hélicoptères.

Helium. Bibliography of scientific literature relating to helium.

United States Bureau of Standards, Circular No. 81, Dec. 21, 1922, Washington, Government Printing Office, pp. 32.

- L'elio e la sua produzione industriale.

Elettricista, Vol. 1, S. 4, No. 20 (Oct. 15, 1922), Rome, pp. 151-152.

- Helium airships.

Science, n. s., Vol. 58 (Aug. 3, 1923), Garrison, N. Y., sup. 10.

- Helium for airships.

Science, n. s., Vol. 57 (Mar. 23, 1923), Garrison, N. Y., sup. 12.

- Natural gas a source of helium.

Petrolium Times, Vol. 10, No. 244 (Sept. 8,1923), London, p. 350.

- To launch our helium airship.

Literary Digest, Vol. 78 (Aug. 18,1923), New York, p. 26, ill.

- See Crocco, G. Arturo: The employment of helium in airships.

- See Crocco, G. Arturo: The use of helium in dirigibles.

- See Jones, E. : Army Air Service railroad helium plant.

- See Kahn, Julius: Heliuni—nature's antidote for fire.

- See Lewis, I. M.: Helium hunting in the Milky Way.

- See Raker, John E. : Helium in the national defense.

- See Sheppard, Morris: Helium and the national defense.

- See Wicks, Z. W.: Helium and its relation to lighter-than-air ships.

Helmbold, H. B. Die Sinkgeschwindigkeit der Segelflugzeuge.

Zeitschr. Flugt. Motorluftschr., Bd. 14, No. 15-16 (Aug. 31, 1923), Berlin, pp. 121-122, ill.

Hemming, H. Cloud flying.

The Aeroplane, Vol. 25, No. 26 (Dec. 26, 1923), London, p. 608.

Henderson, Paul. Expediting the mail.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, p. 80.

- Review of the air-mail night flying trials.

Aviation, Vol. 15, No. 17 (Oct. 22, 1923), New York, pp. 521-523, ill.

Hendon. Light planes at Hendon. First meeting a great success. Flight, Vol. 15, No. 44 (Nov. 1, 1923), London, pp. 667-669, ill.

Henrt-Couannier, André. Examen de principe de la convention internationale portant réglementation de la navigation aérienne du 13 octobre 1919. Paris, 1922, pp. 112.

- See Mouillard, L. P.: Le vol sans battements. Reconstitué et précédé

d'une étude sur l'oeuvre ignorée de L.-P. Mouillard par André Henry-Coüannier.

Henslet, William N. Mitchel Field air carnival.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, p. 34.

Heroesell, Hugo. Ergebnisse der aerologischen Tagung vom 3.-6. VII. 1921 im Preuss. Aeronautischen Observatorium Lindenberg.

1922, pp. 95, ill.

Herlitzka, Amedeo. Physiologie et aviation. Bologne, Nicolas Zantcbelli, éditeur, ill.

Herrera, Emilio. The Spanish-South American airship line.

Aeronautical Digest, Vol. 2, No. 6 (Juna 1923), Naw York, pp. 423, 456.

- Standardisation de la notation mathématique de l'aéronautique.

International Air Congress, London, 1923, Report, London, 1923, pp. 43-59.

Herset, Mayo Dyer. Diaphragms for aeronautic instruments.

National Advisory Committee for Aeronautics, Report No. 165, July 27, 1923, Washington, Government Printing OfEco, 1923, pp. 32, ill.

- Variation of fluid properties in aerodynamics.

International Air Congress, London, 1923, Report, London, 1923, pp. 414-421, tabls.

- Viscosity of lubricants at high pressure and temperature.

International Air Congress, London, 1923, Report, London, 1923, pp. 549-551.

Highway research. See Adams, Haddon C: Aerial photography in highway building.

Hill, E. T. Some controversial points in aircraft detail design.

Institution of Aeronautical Engineers, Minutes of Proceedings, No. 6, 1923, London, pp. 7-17, 18-21.

Hill, R. M. The maneuvers of inverted flight.

Aaronautical Research Committee, Reports and Memoranda, No. 836 (Ae. 86), Sept. 1922, London, 1923, pp. 38. Journ. Roy. Aer. Soc, Vol. 27, No. 156 (Dec. 1923), London, pp. 569-605, ill.

Hinckley, Vern. Hawaii.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), Naw York, p. 18.

Hirata Nisi and Alfred W. Porter. On eddies in air. Phil. Mag., Ser. 6, Vol. 46, No. 275, 1923, pp. 754-768.

Hirschatjer, Louis, et Charles Dollfus. L'année aéronautique 1922-23.

Paris, Dunod, 1923, pp. xiii, 175, ill.

Hirschauer, Louis. La qualité en aviation. Paris, 1923.

- Sur les formules de classement des concours d'avions de transport.

L'Aérophile, 31a année, Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 201-202.

- See Blanchet, Georges: Aviateurs et aéronautes contemporains. Louis

Hirschauer.

History. Practical impossibility of human flight proved 22 years ago.

XJ. S. Air Sarvice, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 38-39.

Hoare, Samuel. Reconstruction of the Royal Air Force.

Flight, Vol. 15, No. 43 (Oct. 25,1923), London, p. 658.

- Sir Samuel Hoare and the air force.

Flight, Vol. 15, No. 28 (July 12, 1923), London, p. 385.

- The statement by the Secretary of State for Air before the Imperial

Economic Conference.

Flight, Vol. 15, No. 43 (Oct. 25, 1923), London, pp. 658-659.

Hodgson. Sir George Cayley.

Practical Engineer, Vol. 67, No. 1893 (June 7,1923), London, pp. 309-310. Hodgson, J. E. Some notes on Sir George Cayley as a pioneer of aeronautics.

Journ. Roy. Aer. Soc, Vol. 27, No. 152 (Aug. 1923), London, pp. 371-380.

Hodgson, J. Lawrence. Tests on model propellers.

Journ. Roy. Aer. Soc., Vol. 27, No. 151 (July 1923), London, pp. 337-341, ill.

Holzel, A. See Heidelberg, V., and A. Holzel: Speed measurement made by Division A of the Airplane directorate (Flugzeugmeisterei), subdivision for flight experiments.

Hoff, Wilhelm. Betrachtungen zur Förderung des Segelfluge.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 17-22 (Nov. 21,1923), Berlin, pp. 151-152.

Holland. See Noorduyn, R. B. C. : Great aerial activity in Holland.

Holthe, T. De nye retningslinjer inden automobilog flyvemotorteknikken.

Teknisk Ukeblad, No. 33 (special number), Aug. 31, 1923, Christiana, pp. 265-271, ill,

Homburg, Robert. La responsabilité de l'état à raison des fautes de ses agents en matière de locomotion aérienne.

Revue Juridique Internationale de la Locomotion Aérienne (juin 1923), Paris, pp. 257-261.

Hooker, Peter. A new aero engine. Stromboli.

Engineer, Vol. 136, No. 3525 (July 20,1923), London, p. 59.

Hookham, F. J. Fueling aircraft.

International Air Congress, London, 1923. Report, London, 1923; pp. 811-816, ill., diagr.

Hoot, Henry Irvin. The effect of airfoil thickness and plan form on lateral control.

National Advisory Committee for Aeronautics, Report No. 169, Aug. 31, 1923, Washington, Government Printing Office, 1923, pp. 11, 111., tabls., diagrs.

Hopf, L. See Fuchs, R., and L. Hopf: Aerodynamik.

HosKiNS, Arthur C. St. Louis as dirigible center to rehabilitate free ballooning.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 242, 288.

Houard, Georges. Le vol à voile et l'Association Française Aérienne. Paris, Edité par l'Association Française Aérienne, 1923, pp. 180, ill.

HouGHLANn, H. J. Selecting a landing field in case of trouble.

Aviation, Vol. 15, No. 23 (Dec. 3, 1923), New York, pp. 679-680.

Houlberg, A. F. Power plants for model aeroplanes.

Flight, Vol. 15, Nos. 15-16 (Apr. 12-19, 1923), London, pp. 205, 219.

HowARn, En ward P. Unsurpassed training at Del Monte.

U. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, pp. 39-40, ill.

Howard, Herbert S. A proposed British aircraft carrying mail steamer. Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, pp. 74, 119.

Hoyt, Richard F. An air terminal for the city of New York.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 419-420, ill.

Hubendick, E. Researches on the alcohol internal-combustion-engine problem. International Air Congress, London, 1923, Report, London, 1923, pp. 498-515, diagr.

Huebotter, H. A. Mechanics of the gasoline engine.

London, McGraw-Hill Publishing Co., Ltd., 1923, pp. ix, 313.

Huff-Daland. Huff-Daland model TA-6 advanced training plane.

Aviation, Vol. 15, No. 14 (Oct. 1, 1923), New York, pp. 408-409.

- Performance test of Huff-Daland TA-2, equipped with Curtiss OX-5

engine.

United States Air Service Information Circular, Vol. 5, No. 407 (Apr. 1,1923), Washington, Government Printing Office, pp. 4, ill.

- Performance test of Huff-Daland TA-2, equipped with Lawrence "R"

engine.

United States Air Service Information Circular, Vol. 5, No. 411 (Apr. 1, 1923), Washington, Government Printing Office, pp. 5, ill.

Hugershoff, H. Autokartograph und Dopperprojektor.

Bauingenieur, Vol. 4, No. 17 (Sept. 15, 1923), Berlin, pp. 496-499, ill.

Huguenard, E., A. Maqnan, et A. Planiol. Sur une méthode de mesure de la vitesse et de la direction instantanées du vent.

La Tech. Aéron., 14e année, n. s., No. 25-26 (15 nov.-15 déc. 1923), Paris, pp. 79S-806, 854862, ill.

Huguet, L. La construction des avions. Tome i: Calcul de résistance des éléments constitutifs. Tome II: Étude des formes et procédés de construction.

Paris, 1922, pp. 200, ill.

Hulls. See Tuckerman, L. B.: Notes on aerod}'namic forces on airship hulls.

Humphreys, Frederic E. No one flies without utilizing the principle discovered by the Wrights.

TJ. S. Air Service, Vol. 8, No. 12 (Dac. 1923), Washington, pp. 13-15, ill.

Hungary. Ungarische Verordnung betr. den Luftverkehr.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 6-9 (11. Feb.-4. März 1923), Berlin, pp. 62-64, 74-76, 98-100.

Hunsaker, J. C. The story of transportation by air.

Aviation, Vol. 14, No. 8 (Feh. 19, 1923), New York, pp. 215-218.

Hunt, Franklin Livingston. Aeronautic instruments.

United Statas Buraau of Standards, Technologic Paper, No. 237, May 16, 1923, Washington, Government Printing Office, pp. 448-511, ill.

Hunt, F. W. See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

Huntoon, L. D. The aeroplane in engineering.

Mining and Matallurgy, Vol. 4, No. 204 (Dec. 1923), Naw York, pp. 607-611, ill.

Hyde, J. H. See Batson, Reginald George Cyril and J. H. Hyde: Mechanical testing.

Hydrogen. See Rieder, A. : Disturbing effect of free hydrogen on fuel combustion in internal-combustion engines.

Hynes, G. B. A survey of recent work carried out in the engine research and experimental department of the Royal aircraft establishment, South Farn-borough.

International Air Congress, London, 1923, Report, London, 1923, pp. 431-440i

I

I. T. Le concours Espagnol d'avions militaires.

L'Aérophila, 31e annéa. Nos. 5-6 (lar-15 mars 1923), Paris, pp. 72-74, ill.

- Le grand prix de la moto-aviette du Petit Parisien.

L'Aérophile, 31e annéa, Nos. 15-16 (ler-15 août 1923), Paris, pp. 227-230, fflj

- La Moto-Aviette.

L'Aérophile, 31a annéa, Nos 7-8 (ler-15 avril 1923), Palis, pp 99-101, ill?

- Succès des essais de l'hélicoptère Śhmichen.

L'Aérophile, 31a annéa. Nos 1-2 (ler-15 jan. 1923), Paris, p. 4, Uli

- Le vol à voile.

L'Aérophile, 31e année. Nos. 3-4 (ler-15 fév. 1923), Paris, pp. 34-36, 111.

Idrac, P. Contribution à l'étude des vents du large.

La Tech. Aéron., 14e annéa, n. s., No. 25 (15 nov. 1923), Paris, pp. 819-825, ill.

- Études expérimentales sur le vol à voile.

Paris, 1922, pp. 31, ill.

- Remarques sur le vol de l'albatros et sur un procédé simple d'étudier les

variations d'inclinaison du vent.

La Tach. Aeron., 14e année, n. s., No. 19 (15 mai 1923), Paris, pp. 602-606, ill.

Ignition. See Kulebakin, V. S.: Störende Wirkungen des elektrischen Zündsystems der Ezplosionsmotoren auf den Radio-Empfang bei Flugzeugen.

Ihrig, H. K. New type of rigid airship.

Aviation, Vol. 15, No. 10 (Sept. 3, 1923), New York, p. 283, diagr.

Imperial Air Transport Co., Ltd. See Great Britain, Air Council: Agreement made with the British, foreign, and colonial corporation, ltd., providing for the formation of a heavier-than-air transport company, to be called the Imperial Air Transport Co. (Ltd.).

Imperial Conference. The Imperial Conference of the Air.

Flight, Vol. 15, No. 46 (Nov. 15, 1923), London, pp. 693-694.

Imperial Economic Conference. See Hoare, Samuel: Statement by the Secretary of State for Air before the Imperial Economic Conference.

Inchinnan. Inchinnan airship works.

Engineer, Vol. 135, No. 3512 (Apr. 20, 1923), London, p. 417.

Industry. The aircraft industry.

Aviation, Vol. 14, No. 1 (Jan. 1, 1923), New York, p. 7.

- Survey of the aircraft industry.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, p. 134.

Insect wings. See Mallock, A.: Expansion of the wings of Lepidoptera after emergence from chrysalis.

Insignia. See Markings: List of civil aircraft markings.

Institute of Aero Engineers. See Harrison, George B.: An institute of aero engineers.

Institution of Aeronautical Engineers. Minutes of the proceedings of the Institution of Aeronautical Engineers.

London, No. 1, Feb. 1922; No. 2, Mar. 1922; No. 3, Mar. 1922; No. 4, Nov. 1922.

Instone, Samuel. The future of British aviation.

Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, pp. 73, 119-120.

Instruments. The Costanzi multimanograph.

Aerial Age, Vol. 16, No. 6 (June 1923), New York, pp. 275-276, ill.

- Instrument board displayed at Gothenberg.

U. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, p. 35.

- Instruments for aircraft.

Times Trade and Engineering Supplement, Vol. 11, No. 235 (Jan. 6, 1923), London, p. 399.

- Messgeräte der Luftfahrt.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 3-4 (Feh. 26, 1923), Berlin, pp. 17-34.

- New Pioneer flight indicator. A combined bank and turn indicator of

small size and light weight.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, p. 131, ill.

- A pendulum hardness tester.

Flight, Vol. 15, No. 37 (Sept. 13, 1923), London, pp. 550-551, ill.

- Recent progress in aeronautical instruments.

The Aeroplane, Vol. 25, No. 19 (Nov. 7, 1923), London, p. 466, ill.

- Some recent developments in aircraft instruments.

Flight, Vol. 15, No. 45 (Nov. 8, 1923), London, pp. 688-689.

- See Bennewitz, Kurt: Aeronautical instruments.

Instruments. See Hersey, M. D. : Diaphragms for aeronautic instruments.

- »See Hunt, Franklin L.: Aeronautic instruments.

- See Joachim, W. F.: An impulse electric motor for driving recording

instruments.

- »See Paul, George F.: Ground wind indicator for night flying.

- »See Reid, H. J. E.: The N. A. C. A. recording tachometer and angle of

attack recorder.

- »See Ronan, K. M.: An instrument for recording the position of airplane

control surfaces.

- »See Stewart, C. J.: Measurement of air speed in aeroplanes.

Insurance. Flying vs. life insurance.

Aviation, Vol. 15, No. 15 (Oct. 8, 1923), New York, p. 447.

- Insurance rates on military flyers increased.

TT. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, p. 16.

- »See Sturge, A. L.: Aviation insurance.

International Aeronautical Foundation. »See Knight, William: The International Aeronautical Foundation (I. A. F.).

International Air Code. International Air Code. Text adopted by the Prague Congress, translated by W. Jefferson Davis.

Hevue Juridique Internationale de la Locomotion Aérienne (Jan. 1923), Paris, pp. 38-44.

International Air Congress. The International Air Congress.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 1 (July 4, 1923), London, pp. 17-26. The Aeroplane, Vol. 24, No. 24 (June 13, 1923), London, p. 434.

Engineering, Vols. 115-116, Nos. 3001 and 3002 (June 29-July 6, 13, 1923), London, pp. 795-798, 5-11, 35-59.

Flight, Vol. 15, Nos. 26, 27 (June 28-July 5, 1923), London, pp. 347, 368-369.

- The International Air Congress, London, 1923.

Aviation, Vol. 15, No. 9 (Aug. 27,1923), New York, pp. 244-247.

- The International Air Congress, 1923.

Nature, Vol. 112, No. 2802 (July 14,1923), London, pp. 69-70.

- International Air Congress. Report.

London, 1923, pp. 981, ill.

Second International Air Congress since World War. Proceedings to appear later in book form.

- International Air Congress. The slotted wing, F. Handley Page; and

Airscrew research in Great Britain, H. C. Watts.

The Engineer, Vols. 135, 136, No. 3521-3523 (June 22-July 6,1923), London, pp. 663-664, 682684, 5-7, ill.

International flying. Flying between Canada and the United States. Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 22-23.

Internationale Luftfahrtkonvention. Aenderungen zur Internationalen Luftfahrtkonvention vom 13. Oktober 1919.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 45 (11. Nov. 1923), Berlin, p. 449.

- Internationale Luftfahrtkonvention. Aenderung der 14, 15, 16, 17, 19,

36 und 46 des Anhangs D.

Nachrichten für Luitfahrer, Jahrg. 4, Nr. 49 (9. Dez. 1923), Berlin, pp. 477-178.

Invested flight. »See Hill, R. M.: The maneuvers of inverted flight.

Ibving, H. B., and A. S. Batson. On the effect of sideslip on the aerodynamic forces and moments (including those due to the controls) for a model S. E. 5a aeroplane.

Aeronautical Research Committee, Reports and Memoranda, No. 831 (Ae. 82) (Aug. 1922), London, 1923, pp. 17, tabls., diagrs.

- Some experiments on a model biplane having slotted wings, with particular reference to the improvement of lateral control at low speeds.

Aeronautical Research Committee Reports and Memoranda, No. 856 (Ae. 96), Feh. 1923, London, 1923, pp. 8.

Italy. The Italian aeronautical reorganization plan.

Aviation, Vol. 14, No. 10 (Mar. 6, 1923), New York, p. 271.

- Italian air routes.

Aviation, Vol. 14, No. 4 (Jan. 22,1923), New York, p. 103.

- Italienisches Ministerialdecret vom 9. Mai 1922, betr. Vorschriften über

Erteilung und Gebrauch von Luftfahrzeugführerscheinen.

Nachrichten für Luitfahrer, Jahrg. 4, Nr. 15-16 (15. April 1923), Berlin, pp. 169-171, 181-184.

- Kgl. Dekret über die Bildung des Kgl. italienischen Luftfahrwesens vom

28.3.23.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 23 (10. Juni 1923), Berlin, pp. 266-267.

- Kgl. Italienisches Décret vom 24. Jan. 1923 betr. Einrichtung eines

Kommissariats für Luftfahrwesen.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 17 (29. April 1923), Berlin, pp. 193-194.

- The new organization of the Italian air service.

Aeronautical Digest, Vol. 2, No. 1 (Jan. 1923), New York, pp. 2-4, ill.

- Pareri espressi dall'Associazione Italiana di Aerotecnica in merito all'indirizzo nello studio dei problemi aerotecnici in Italia.

Atti Assoc. Ital. Aerotecn., 1923, Vol. 3, N. 2, Roma, 1923, pp. 135-146.

- Unified air service proposed in Italy.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, p. 34.

- »See Guidoni, A.: Reorganization of aeronautics in Italy.

- »See Nobile, Umberto. : Recent progress in airship construction in Italy.

- »See "Rondine": An Italian light plane.

- »See Royse, M. W. : Survey of commercial aviation in Italy.

Itfosd. »See Gliding flight: Gliding and gliders at Itford.

J

JN-4H. »See Norton, Frederick Harwood: The measurement of the damping in roll on a JN-4H in flight.

J. P. Le naufrage du "Dixmude."

L'Aérophile, 31e année, Nos. 23-24 (ler-15 déc. 1923), Paris, pp. 366-367, ill.

Jacobson, Lenn. »See Sweden. Lufttrafikkommittén.

Jacquet, A. Aciers, fers, fontes.

Paris, Libr. Dunod, 1923, pp. viii, 231. Tome 1.

James. Les moteurs au salon de 1922.

L'Aérophile, 31e année, Nos. 3-4 (ler-15 fév. 1923), Paris, pp. 51-54, ill.

Jamin, Raymond. Impressions of the Paris aero exposition.

Aviation, Vol. 14, No. 6 (Feb. 6, 1923), New York, pp. 161-162.

Japan. Representative Japanese civil and military aircraft.

Aviation, Vol. 14, No. 6 (Feb. 5, 1923), New York, pp. 163-104, ill.

Jarat, P. Nondimensional coefficients for comparison of airship characteristics. Aviation, Vol. 14, No. 12 (Mar. 19, 1923), New York, pp. 314-317.

Jasper, T. M. See Moore, H. F., and T. M. Jasper: An investigation of the fatique of metals.

Jatjneatjd, Marcel. L'aviation militaire et la guerre aérienne.

Bibliothèque de Philosophie Scientifique, Paris, E. Flammarion, 1923, pp. 261, ill.

- L'évolution de l'aéronautique.

Bihliothèquo de Philosophie Scientifique, Paris, Ernest Flammarion, éditeur, 1923i pp. 284, ill., diagrs.

Jenkin, C. F. Fatigue in metals.

Journ. Roy. Aer. Soc, Vol. 27, No. 147 (Mar. 1923), London, pp. 89-104.

Jet propulsion. See Buckingham, Edgar: Jet propulsion for airplanes.

Joachim, W. F. An'impulse electric motor for driving recording instruments.

National Advisory Committei for Aeronautics, Technical Notes No. 157, Sept. 1923, Washington, pp. 13, ills., tahls., diagrs.

Johnson, B. K. An improved revolution counter.

Flight, Vol. 15, No. 50 (Dec. 13, 1923), London, p. 752, ill.

Johnson, P. D. Commercial aviation: Some truths on the subject.

Aerial Age, Vol. 10, No. 4 (Apr. 1923), New York, pp. 169-170, ill.

Jones, B. Q. Flying in the Philippine Islands.

U. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 30-32, ill.

Jones, B. Melvill. Aerial surveying.

International Air Congress, London, 1923, Report, London, 1923, pp. 800-806.

Jones, B. Melvill, and J. C. Griffiths. Recent experiments in aerial surveying by vertical photographs.

Nature, Vol. 3, Nos. 2795-2796 (May 26-June 2, 1923), London, pp. 707-709, 745-748, ill.

- See MacLeod, M. N.: Recent developments of air photography. 1. The

adjustment of air photographs to surveying points. 2. The mapping of large areas of unsurveyed country. B. Melvill Jones and J. C. Griffiths.

Jones, E. Army air service railroad helium plant.

International Aeronautics, Vol. 1, No. 3 (Sept. 1923), New York, pp. 83-85, ill.

Jones, H. A. Over the Balkans and South Russia: Being a history of No. 47 Squadron, Royal Air Force.

London, Edwin Arnold & Co., 1923, pp. 191, ill.

Jones, Keith. "Aerial fliver" in sight.

U. S. Air Service, Vol. 8, No. 0 (June, 1923), Washington, pp. 25=20.

- "Draft awaits passive reservists."

U. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, p. 22.

- Easier physical tests urged.

U. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 21-22.

Jones, L. J. See Cowley, W. L., and L. J. Jones: Biplane investigation with R. A. F., 15 section. Part II.

- See Cowley, W. L., A. G. Gadd, L. J. Jones, and Sylvia W. Skan: Biplane

investigation with R. A. F., 15 section.' Part III. Tests at various staggers and gap chord ratios.

Jones, Melvill. Control of airplanes at low speeds.

Journ. Roy. Aer. Soc, Vol. 27, No. 154 (Oct. 1923), London, pp. 473-487.

Jones, R. Aerodynamic pressure on an airship hull in curvilinear flight.

Aeronautical Research Committee, Reports and Memoranda, No. 780 (Ae. 40) (Nov. 1921), London, 1922, pp. 11.

- The equilibrium of R-38 in circling flight.

Aeronautical Research Committee, Reports and Memoranda, No. 782 (Ae. 42) (Nov. 1921), London, 1922, pp. 7, tabls.

Jones, R., D. H. Williams, and A. H. Bell. Experiments on a model of rigid airship R. 32, together with a comparison with the results of full scale turning trials and a consideration of the stability of the ship.

Aeronautical Research Committee, Reports and Memoranda, No. 779 (Ae. 39) (Sept. 1921), • London, 1922, pp. 22, tabls., diagrs.

Jones, R., and D. H. Williams. Experiments on a model of rigid airship R. 38.

Aeronautical Research Committee, Reports and Memoranda, No. 799 (Ae. 54) (May 1920), London, 1923, pp. 23, tabls., diagr.

Jones, R., D. H. Williams, and A. H. Bell. Experiments on model of a rigid airship of new design.

Aeronautical Research Committee, Reports ami Memoranda, No. 802 (Ae. 56) (June 1922), London, 1923, pp. 32, tabls., diagrs.

Jones, R. The motion of airships under certain imposed movements of the rudders.

Aeronautical Research Committee, Reports and Memoranda, No. 781 (Ae. 41) (Nov. 1921), London, 1922, pp. 27, tabls.

Jones, R., and A. H. Bell. The pressure distribution over a model of the hull of airship R-33.

Aeronauticel Research Committee, Reports and Memoranda, No. 801 (Ae. 55), (Mar. 1922), London, 1923, pp. 37, tabls., diagrs.

- On the aerodynamic characteristics of parachutes. A comprehensive

account of researches incorporated in various papers submitted to the Advisory Committee for Aeronautics.

Aeronautical Research Committee, Reports and Memoranda, No. 862 (Ae. 101), June, 1923, London, 1923, pp. 72, tabls., diagrs.

Jones, R., and A. H. Bell. The resistance of a spheroid, with special reference to the effect of wires placed around the model in a plane at right angles to the axis.

Aeronautical Research Committee, Reports and Memoranda, No. 858 (Ae. 98), Nov. 1922, London, 1923, pp. 10, tabls., diagrs.

Jones, R. See Nayler, J. L., and R. Jones: The stability of airships: General case. The mathematical theory and its application.

Joyce, Temple N. Successful commercial aviation analyzed.

Aviation, Vol. 14, No. 16 (Apr. 16, 1923), New York, pp. 420-422.

Joynson-Hicks, William. An imperial air service.

Journal of the Institute of Transport, Vol. 4, No. 2 (Dec. 1922), London, pp. 73-78, 78-79.

Juillot, Ch. L. Les avions sanitaires et l'après-guerre.

Paris, 1922.

Julliot, Henri. Henri Julliot dead.

Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, p. 375, ill.

Jumping balloon. New type of aircraft—the jumping balloon.

Aviation, Vol. 14, No. 18 (Apr. 30, 1923), New York, pp. 472-473, ill.

Junkers. The Junkers all-metal monoplane; 180-horsepower B. M. W. low-compression engine.

Flight, Vol. 15, No. 3 (Jan. 18, 1923), London, pp. 35-38, ill.

Junkers, Hugo. Metal aeroplane construction.

Journ. Roy. Aar. Soc, Vol. 27, No. 153 (Sept. 1923), London, pp. 406-449, 111.

- Metal aeroplanes.

Flight, Vol. 15, No. 2 (Jan. 11, 1923), London, p. 24.

- Metal aircraft.

Aar. Eng. Suppl. The Aeroplane, Vol. 24, No. 5 (Jan. 31, 1923), London, pp. 79-80.

K

Kahn, Julius. Helium—nature's antidote for fire.

Aaronautical Digest, Vol. 2, No. 2 (Fab. 1923), New York, pp. 69-70, 144-145, ill.

Karman. See Heisenberg, Werner: Absolute dimensions of Karman vortex motion.

Karman, von. See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Margoulis, R. Verduzio, Richard Katzmayr, E. B. Wolff and A. F. Zahm: Standardization and aerodynamics.

Kasinger, F. Die derzeitige Lage der deutschen Luftfahrt.

Motorwagen, 26. Jahrg., Heft 10, 11, 12 (Apr. 10, 20, 30, 1923), Berlin, pp. 151-153, 168-170, 185-188.

Katzmayr, Richard. Der motorlose Flug.

Zeitschrift des Oesterreichischen Ingenieur- und Architekten-Vereines, Bd. 75, No. 17-18 (May 4, 1923), Wien, pp. 97-100, ill.

- See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Margoulis,

R. Verduzio, Richard Katzmayr, E. B. Wolff and A. F. Zahm: Standardization and aerodynamics.

Keary, E. M. Experiments with model Aying boat hulls and seaplane floats. Twenty-second series report. Comparison of the Vigilant straight frame type and curved section flying boats.

Aeronautical Resaarch Committee, Raports and Memoranda, No. 785 (Aa. 38) (Jan. 1922), London, 1922, p. 16, tabls., diagrs.

Keil, Henry W. St. Louis, an aeronautical center.

Aaronautical Digest, Vol. 2, No. 5 (May 1923), New York, p. 319.

- St. Louis. Invitation to the international air races and aeronautical

exhibition, October 1, 2, and 3.

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, pp. 139-142, 198.

Keller, H. R. U. S. S. Langley, our first aircraft carrier.

Journal of the Amarican Society of Naval Engineers, Vol. 35, No. 3 (Aug. 1923), pp. 500-525, ill.

Kellett, W. Wallace. Modern air transportation.

Aerial Aga, Vol. 16, No. 5 (May, 1923), New York, pp. 228-229, ill.

- Progress of commercial aviation in France.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, p. 125.

- The twentieth century cabin boy.

Aerial Aga, Vol. 16, No. 2 (Feb. 1923), New York, pp. 59-60, ill.

Kelly, M. Clyde. Air mail delivers striking evidence against inaction. Aerial Age, Vol. 16, No. 6 (June, 1923), New York, pp. 262-263.

- The Post Office Department is willing to contract with private agencies

for the transportation of mail matter by aircraft.

Aaronautical Digest, Vol. 2, No. 1 (Jan. 1923), New York, pp. 5-6.

Kelly, Oakley G., and John A. Macready. The 2,000-mile flight of the Army Fokker T-2. Official report of Lieutenants Kelly and Macready on flight from San Diego to Fort Benjamin Harrison.

Aviation, Vol. 14, No 1 (Jan. 1, 1923), Naw York, pp. 8-11.

Kempe, Erich. Die volkswirtschaftliche Bedeutung des Luftverkehrs. Sein gegenwärtiger stand u. s. Bedeutung für die Schule.

1922, pp. 20.

Kerneis, Jean. La stabilité longitudinale des avions.

La Tech. Aéron., 14e année, n. s., No. 20 (15 juin 1923), Paris, pp. 630-634, ill.

Kerr, Mark. The air and the empire.

Outlook, Vol. 52, No. 1328 (July 14, 1923), London, pp. 27-29.

- Flygning i fred och krig.

Stockholm, 1922, pp. 19.

King's cup. The King's cup race. Entries and handicaps.

The Aeroplane, Vol. 25, No. 2 (July 11, 1923), London, pp. 18.

- On the King's cup race.

The Aeroplane, Vol. 25, No. 3 (July 18, 1923), London, pp. 65-72, 83-84, ill.

Kinner. The Kinner "Airster" sport plane.

Flight, Vol. 15, No. 49 (Dec. 6, 1923), London, pp. 735-736, ill.

Klemin, Alexander. Gliding theory and the operation of gliders.

Aviation, Vol. 15, No. 18 (Oct. 29, 1923), New York, pp. 544-549.

- Handwriting on the sky, the most recent and compelling method of

advertising.

Scient. Amer., Vol. 128 (May 1923), New York, p. 323, ill.

- How the glider flights of German students have brought about a new era

in aeronautics.

Scient. Amer., Vol. 129 (Nov. 1923), New York, pp.*326-327, ill.

- With the men who fly.

Scient. Amer., Vol. 129 (Oet.-Nov. 1923), New York, pp. 226-227, 326-327, 111.

Klempereb. A German light aeroplane.

The Aeroplane, Vol. 25, No. 23 (Dec. 5, 1923), London, p. 552, ill.

Klemperer, W., and T. Bienen. Comparing aerodynamical properties of wings.

Aviation, Vol. 15, No. 13 (Sept. 24, 1923), New York, pp. 368-370.

Knapper, G. Der Vortrieb von Schiffen und Flugzeugen.

Schiffbau, Bd. 24, No. 51-52 (Sept. 19, 26, 1923), Berlin, pp. 791-792.

Knerr, Horace C. Steel structural parts for aircraft.

Iron Age, Vol. 112, No. 13 (Sept. 27, 1923), New York, pp, 816-820, ill.

Knight, William. The International Aeronautical Foundation (I. A. F.).

Aerial Age, Vol. 16, No. 2 (Feb. 1923), New York, pp. 64-67.

- Offices of aeronautic intelligence.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 143-145.

Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Margotjlis, R. Verduzio, Richard Katzmayr, E. B. Wolff and A. F. Zahm. Standardization and aerodynamics.

National Advisory Committee for Aeronautics, Technical Notes No. 134, Mar. 1923, Washington, pp. 98.

Knight, William. What is the matter with commercial aviation?

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, pp. 177-180, 185.

König, Georg. Thrust and power required for climbing.

National Advisory Committee tor Aeronautics, Technical Notes No. 152, Aug. 1923, Washington, pp. 19, tahls., diagrs.

—■— Zur Längsstabilität der Flugzeuge.

Zeitschr. Flugt. Motorluftseh., 14, Jahrg., 7-8 Heft (Apr. 26, 1923), Berlin, pp. 61-64, ill.

See

M.

L.

See

M.

L.

See

M.

L.

See

M.

L.

See

M.

L.

See

M.

L.

See

M.

L.

See

M.

L.

Le développement de notre réseau aérien. L'effort Américain pour les records mondiaux. L'essor des dirigeables en France et en Amérique. Le grand prix des avions de transport. Les nouveaux records de vitesse aux États-Unis.

L., R. See R. L. : Un dimanche au pays du commandeur des Croyants.

- See R. L. : La Xlle Coupe Gordon-Bennett des sphériques.

- See R. L. : Inauguration du monument Caudron, au Crotoy.

i- See R. L.: Récit des deux premiers voyages aériens. Relation de Charles.

- See R. L. : Sarah Bernhardt aéronaute.

Koning, C. See Baumhauer, A. G. von, and C. Koning: On the stability of oscillations of an aeroplane wing.

Koppe, Heinrich. See Wigand, Albert, and Heinrich Koppe: Ein neuer Flugzeug-Meteorograph.

Keassovskt, N., and G. Sabinin. Problems of utilizing of energy of wind.

Scientific-Technical Section S. C. N. E., No. 9, Transactions of the Central Aero-Hydro-dynamical Institute, No. 2, Moscow, 1923, pp. 94, diagrs.

Keassovskt, N. W. A new blade for the Russian windmill.

Transactions of the Central Aero-Hydrodynamical Institute, No. 4. U. S. S. E. Scientific-Technical Department of the Supreme Council of National Economy, No. 23, Moscow, 1923, pp. 3-5.

Kkeuter, C. Der Dietrich-Passagier-Doppeldecker.

Motorwagen, Bd. 26, No. 11 (Apr. 20, 1923), Berlin, pp. 170-171, ill.

- Der neue Dietrich-Gobiet-Doppeldecker.

Motorwagen, Vol. 26, No. 32-33 (Nov. 20-30, 1923), Berlin, pp. 462-463, ill.

KuLEBAKiN, V. S. Störende Wirkungen des elektrischen Zündsystems der Explosionsmotoren auf den Radio-Empfang bei Flugzeugen.

Elektrotechnische Zeitschrift, Bd. 44, No. 23 (June 7, 1923), Berlin, pp. 537-541, ill.

Kützbach, K. Adaptation of aeronautical engines to high-altitude flying.

National Advisory Committee for Aeronautics, Technical Notes No. 141, May 1923, Washington, pp. 30, ill.

- Flexible mounting of airplane engines.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, pp. 188-189.

- The flexible mounting of an airplane engine.

National Advisory Committee for Aeronautics, Technical Notes No. 148, July 1923, Washington, pp. 6.

- Results of experimental flights at high altitudes with Daimler, Benz, and

Maybach engines to determine mixture formation and heat utilization of fuel.

National Advisory Committee for Aeronautics, Technical Notes No. 125, January 1923, Washington, pp. 11, diagrs.

L

L., M. See M. L.: L'avion de Garros au Musée de 1'Aéronautique.

La Brayelle. Le monument de La Brayelle.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 oct. 1923), Paris, p. 303.

La Vaulx, Henri de, Paul Tissandeh et Charles Dollfus. L'aéronautique des origines à 1922.

Paris, H. Floury, 1922, pp. 46, ill.

La Vatjlx, Henri de. Les vainqueurs de l'air; histoire de l'aéronautique: ses débuts sportifs, son application militaire, sa réalisation commerciale. Preface autographe de M. le maréchal Foch. [Paris], Hachette, [1922], pp. 246, ill., diagrs.

Labouchère, René. See Blanchet, Georges: Aviateurs contemporains. René Labouchère.

Lachmann, G. Der englische Wettbewerb für Kleinflugzeuge und seine Lehren.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 23-24 (Dec. 27, 1923), Berlin, pp. 165-172, ill.

Lacmann, Otto. Das photogrammetrische Vermessungverfahren der Internationalen aerogeodätischen Gesellschaft.

Zentralblatt der Bauverwaltung, Vol. 43, No. 45-46 (June 6, 1923), Berlin, pp. 270-272, ill.

Ladevèze, Poujade de. Notices sur quatre inventions ayant trait à l'aviation. Lafat. Sur l'emploi possible du microphone pour faciliter le vol à voile.

C. E. Acad. Sei., T. 176, No. 13 (Mar. 26, 1923), Paris, pp. 887-888.

Lafayette Escadrille. See Veit, Sidney D.: The Lafayette Escadrille memorial association.

Lafon, Charles. Etude sur le ballon captif et les aéronefs marins. Paris, Gauthier-Villars et Cie., 1922, pp. 208, ill.

Lahm. Prix Lahm pour 1922.

L'Aérophile, 31e année. Nos. 5-6 (ler-15 mars 1923), Paris, p. 90.

Lahm, F. P. All honor to the name of Wright.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, p. 10.

Laidler, W. See Hart, Ivor B., and W. Laidler: Elementary aeronautical science.

Laird. The Laird five-passenger limousine plane.

Aviation, Vol. 15, No. 13 (Sept. 24, 1923), New York, p. 371, ill.

Lakehuhst. See Dickeman, Charles T.: The Naval air station at Lakehurst, N. J.

Lallier, H. Roger. En avion au Maroc. Paris, Editions Adol.

Lallier, Roger. L'exposition rétrospective de l'Aéro-Club de France en l'honneur du Physicien Charles.

L'Aérophile, 31e année, Nos. 13-14 (leir-15 juil. 1923), Paris, pp. 215-218,111.

Lamb, Horace. See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

Lambert, Albert Bond. St. Louis has an aeronautical history.

U. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, pp. 34-35.

Lamé. Adaptation des hélices aux avions.

L'Aérophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 209-211, ill.

Land, E. S. Comments on aviation—naval and commercial.

Society of Naval Architects and Marine Engineers. Advance paper No. 2, for meeting Nov. 7-8, 1923, New York, pp. 7.

Landing. Emergency landings from low altitudes.

Aerial Age, Vol. 16, No. 2 (Feb. 1923), New York, pp. 67, 90.

- Has your town a landing field? Aeronautical safety code lists necessary

requirements.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, pp. 186-187.

- Landing-field information.

Aviation, Vol. 14, No. 6 (Feb. 5, 1923), New York, p. 153.

- Landing lights for aircraft.

Times Trade and Engineering Supplement, Vol. 11, No. 231 (Dec. 9, 1922), London, p. 305, 111.

- Liste der englischen fiughäfen nach dem stände vom 1. Juni 1922.

Nachr. Luftf., jahrg. 3, nr. 40 (8 Okt. 1922), Berlin, pp. 503-506.

- Verzeichnis der fiughäfen der Vereinigten Staaten nach dem stände vom

1. Januar 1922.

Nachr. Luftf., jahrg. 3, 1922, Berlin, pp. 305-306, 356-358, 400-401, 532, 638-640.

- See Black, Archibald: Selection of airplane landing fields.

- See Carpenter, Ford A.: Landing fields in vicinity of Los Angeles.

- See Crumrine, C. E.: Airway landing fields.

- See Houghland, H. J.: Selecting a landing field in case of trouble.

- See Stahl, Charles: Artificial illumination for landing fields.

Landis, Reeh G. Air power and the national defense.

TJ. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, p. 21.

Landry, Alphonse. La photographie aérienne.

Revue Trimestrielle Canadienne, T. 8, No. 32 (déc. 1922), pp. 455-465.

Lange, E. J. See Mulvihill: E. J. Lange wins Mulvihill model trophy contest.

Langley. Aircraft carrier Langlcy laboratory for future naval warfare. Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, p. 161, ill.

- Airplane carrier Langley.

Scient. Amer., Vol. 129 (July 1923), New York, p. 42, ill.

- The United States aircraft carrier Langley.

Engineering, Vol. 116, No. 3011 (Sept. 14, 1923), London, pp. 343, ill.

- See Keller, H. R.: U. S. S. Langley, our first aircraft carrier.

Langsdorff, Werner von. Bemerkungen zum Klein-Flugzeugbau.

Motorwagen, Bd. 26, No. 31 (Nov. 10,1923), Berlin, pp. 450-452.

- Der erste Küsten-Segelflug.

Motorwagen, Bd. 26, Nos. 16, 17 (June 10, 20, 1923), Berlin, pp. 245-246, ill.

- Das Fokker-Wasser-Landflugzeug.

Schiffbau, Bd. 24, No. 20 (Feb. 14,1923), Berlin, pp. 324-326, ill.

- Die neuen Rhön-Segelflugzeuge.

Motorwagen, Bd. 26, Nos. 25, 26 (Sept. 10, 20, 1923), Berlin, pp. 378-381, 393-398.

- Das Segelflugzeug.

Berlin, J. F. Lehmauns, Verlag., ill.

Laporte, Fernand. See Blanchet, Georges: Aviateurs contemporains. Fernand Laporte.

Larkin, John D. Air navigation an American institution.

Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, p. 173.

Larned, John Hawley. Reserve reactions—Mitchel Field, 1923.

U. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, pp. 36-38, 111.

Larrouy, Maurice. Le ballon et l'avion. La route aérienne.

Paris, Librarie Armand Colin, 1923, pp. 215, ill.

Larsen, John M. Larsen vindicated at insurance trial.

Aviation, Vol. 15, No. 5 (July 30, 1923), New York, p. 124.

Lateral control. See Hoot, Henry Irvin: The effect of airfoil thickness and

plan form on lateral control. Latey, William. The law of the air.

Grotius Society. Problems of the war. London, 1916-1919, Vol. 7, 1922, pp. 73-87.

Launching. See Roberts, S. G. : Shooting seaplanes from the deck of a speeding ship.

- See Wackett, L. J. : The launching of aircraft from ships.

Lavender, T., T. H. Fewster, and C. F. Henuerson. An attachment of the main balance of 7-foot No. 2 wind tunnel for measuring three forces and three moments.

Aeronautical Research Committee, Reports and Memoranda, No. 822 (Ae. 73) (Sept. 1922), London, 1923, pp. 2, diagr.

Lavender, T. A direction and velocity meter for use in wind tunnel work, etc.

Aeronautical Research Committee, Reports and Memoranda, No. 844 (Ae. 88), Jan. 1923, London, 1923, pp. 2, ill., diagr.

- See Reif, E. F., and T. Lavenuer: A continuous rotation balance for the

measurement of LD at small rates of roll.

- See Reif, E. F., T. Lavender, and E. Ower: The determination of rotary

derivatives.

Lawrence. See Colvin, Fred H.: Making the Lawrence airplane engine.

Laws and regulations. Air Service rules for flying over cities and towns. u. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, p. 22.

—*— Aviation without law.

Outlook, Vol. 132 (Dec. 27, 1922), New York, p. 738.

- Convention for the regulation of aerial navigation, done at Paris, October

13, 1919. Additional protocol to the convention * * * procès-verbal of the deposit of ratification and notification of the accession of Persia.

American Journal of International Law, Vol. 17, 1923, Concord, N. H., Suppl., pp. 195-215. Annexes A-G, omitted, are lound in Great Britain. Foreign Office, Treaty series, 1922, No. 2 (Cmd. 1609).

- Decision against cadet flying pay.

U. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, p. 32.

- Great Britain. Britische luftfahrt-verordnung vom 20. Juni 1922.

Nachr. Luftf., jahrg. 3, nr. 51-52 (31. Dez. 1922), Berlin, pp. 633-634.

- Law memoranda upon civil aeronautics. Printed for the use of the Committee on Interstate and Foreign Commerce, House of Representatives. January 31, 1923.

Washington, Government Printing Office, 1923, pp. iii, 100.

- Making the air safe for everybody.

Literary Digest, Vol. 76 (Mar. 3, 1923), New York, pp. 58-63, ill., map.

- Need for a Federal air law.

American City, Vol. 27 (Dec. 1922), New York, pp. 542-543.

- To curb reckless aviators.

Literary Digest, Vol. 75 (Dec. 9, 1922), New York, p. 16, ill.

-s See Ambrosini, Aw. A. : Per la legge Italiana sulla navigazione aerea.

- See Codice: Il codice internazionale dell'aria.

s

Laws and regulations. See Commission of Jurists on the Laws of War: General report [on radio and aerial warfare] of the commission of jurists at The Hague.

—— See Comité juridique internationale de l'aviation: Comité juridique internationale de l'aviation. De l'enterriotorialité; rapporteur M. Perrin. Code international de l'air.

- See Congrès (Premier) du comité juridique international de l'aviation

tenu au palais du Trocadéro les 31 mai et 1er juin 1911 sous la présidence de M. Millerand.

- See Congrès (Deuxième) du comité juridique international de l'aviation

tenu à Genève les 28 et 29 mai 1912.

- See Congrès (Troisième) internationale de législation aérienne du comité

juridique international de l'aviation. Tenu à Francfort-sur-le-Mein du 25 au 27 septembre 1913.

- See Congrès (Quatrième) internationale de legislation aérienne. Tenu à

Monaco en décembre 1921.

- See Congrès International de Législation Aérienne. Quatrième Congrès

International de Législation Aérienne. . .

- See Congrès (Cinquième) internationale de legislation aérienne du comité

juridique internationale de l'aviation. Tenu à Prague du 25 au 30 septembre 1922.

- See Davis, W. Jefferson: The international air code.

- See Great Britain: Air Force act.

—— See Henry-Couannier, André: Examen de principe de la convention internationale portant réglementation de la navigation aérienne du 13 octobre 1919.

- See Latey, William: The law of the air.

- See Machado y Ortega, Luis: Legislación internacional del aire; estudio

de derecho internacional público.

- See Patterson, T. T. : Aircraft under international law.

- See Rodgers, William Ledyard: The laws of war concerning aviation and

radio.

- See Scandinavia: Meddelande frân Luftfartsmyndigheten 1923.

- See Spiropulos, J. : Der Luftraum, integrierender Teil des Staatsgebietes.

- See Sweden. Lufttrafikkommittén.

Lb Bidolec, A. Le système moteur-avion: L'accouplement différentiel.

Technique Automobile et Aérienne, Vol. 14, No. 121, 1923, Paris, pp. 45-60, ill.

Le Grain, René. Les carburateurs à pulvérisation thermique. (Application à l'aviation.)

LAérophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 212-213, ill.

Le Page, W. L. Wind channel experiments on a pariah kite.

Journ. Roy. Aer. Soc, Vol. 27, No. 147 (Mar. 1923), London, pp. 114-115, diagr.

- See Nayler, J. L., and W. L. LeJPage: Tandem aerofoils.

Leblanc, Alfred. Le prix Alfred Leblanc.

L'Aérophile, 31e année. Nos. 15-18 (ler-15 août 1923), Paris, pp. 251-252, 111* 61287—26-6

Lecointe. La méthode de navigation de l'Admiral Gago Coutinho.

L'Aéiophile, 31e année, Nos 11-12, 13-14 (ler-15 juin-ler-15 jnll. 1923), Paris, pp. 172-174, 214, ill.

Lecointe, Sadi, and John A. Macready. How high altitudes are attained. Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 408-410, ill.

Lecointe, Sadi. Records et performances. Sadi Lacointe ramene en France le record du monde de hauteur en avion.

L'Aérophile, 31e année, Nos. 17-18 (ler-15 sept. 1923), Paris, p. 271.

- Tentative de record de vitesse de Sadi Lecointe.

L'Aérophile, 31e année, Nos. 1-2 (ler-15 jan. 1923), Paris, p. 16

- See Neal, Eric, et Sadi Lecointe: Le lexique aéronautique par Eric Neal

et Sadi Lecointe.

- See R. D.: Sadi-Lecointe bat son propre record de hauteur. U monte a

11.145 metres.

Ledbetter, W. M. The international air races.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, p. 424.

Lee, A. See Cápon, R. S., and A. Lee: Preliminary report on the forced oscillations of aircraft compasses.

Lee, A. S. G. The spirit of air force discipline. A series of lectures for recruits of the Royal Air Force.

London, Gale and Polden, 1923, pp. 29.

Reviewed in the Aeroplane, Vol. 24, No. 14 (Apr. 4, 1923), London, p. 262.

Lee, Charles E. Aircraft yearbook, 1923, compiled by Charles E. Lee, edited by C. G. Grey.

London, Sampson Low, Marston et Company, Ltd., 1923, pp. 182.

- The British Air Minister's helicopter competition.

Aeronautical Digest. Vol. 3, No. 1 (July 1923), New York, p. 24.

- Gliding the English Channel.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, p. 22.

Lee, John G. See Rettew, H. F., and G. Thumin: Tests on riveted joints in sheet duralumin.

- See Schwamb, T. A., and C. S. Smith: Tests on built-up airplane struts

having initial tension in outside fibers.

- See Shoemaker, James M., and John G. Lee: Preliminary study of the

damping factor in roll.

Lee, Stephen M., and Stanwood W. Sparrow. Testing fuels for high-compression engines.

Journal of the Society of Automotive Engineers, Vol. 12, No. 1 (Jan. 1923), New York, pp. 11-16, ill.

Lee, Willis T. The face of the earth as seen from the air. New York, American Geographical Society, 1923, pp. 103, ill.

Lees, W. E. See St. Louis: W. E. Lees wins flying club of St. Louis trophy.

Lefranc, Jean-Abel. Les avions.

Paris, 1922, pp. 191, ill.

- Les voyages de nuit en avion.

La Nature, No. 2563 (msi 19, 1923), Paris, pp 310-315, ill.

Lehr. L'emploi du réducteur de vitesse sur les moteurs d^aéronefs. Paris, 1923.

Leibenzon, L. C. Calculation of torsional stresses in propeller blades.

TJ. S. S. R. Scientific-Technical Department of the Supreme Council of National Economy, No. 65. Transactions of the Central Aero-Hydrodynamlcal Institute, No. 8, Moscow, 1924, pp. 24, diagrs.

Leiqhton, Bktjce G. Recent developments in aircraft engines in the Navy. Aerial Age, Vol. 16, No. 5 (May 1923), New York, pp. 220-226, diagr. Journ. Soc. Automotive Engineers, Vol. 12, No. 4 (Apr. 1923), New York, pp. 325-334, ill.

Leiqhton, Bruce G., and R. M. Parsons. Wright-Navy development work yields great increase in engine life.

Automotive Industries, Vol. 48, No. 17 (Apr. 26, 1923), New York, pp. 928-931, ffl.

Leitholf, O. Die erste Drehalle für Luftschiffe.

Bauingenieur, Bd. 4, No. 21 (Nov. 15, 1923), Berlin, pp. 581-583, ill.

Lemoine, Jean. Les accidents de la Coupe Gordon-Bennett des ballons et l'électricité atmosphérique.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 oct. 1923), Paris, pp. 300-302, ill.

Lepère. Orientation à donner aux recherches et aux expériences aérodynamiques.

L'Aérophile, 31e année, Nos. 6-6 (ler-15 mars 1923), Paris, pp. 70-71.

Lepere, G. Considérations sur l'établissement d'un projet d'avion.

La Tech. Aéron., 14e année, n. s., No. 23 (15 sept. 1923), Paris, pp. 748-758, 111.

- Recherche d'une formule de classement pour la qualité de transport des

avions.

La Tech. Aéron., 14e année, n. s., No. 26 (15 déz. 1923), Paris, pp. 836-840, ill.

Leroux, E. Les hélices aériennes. L'adaptation des hélices aux avions. Les hélices métalliques. Les hélices a changement de pas.

La Tech. Aéron., 14e année, n. s., Nos. 19-20 (15 mai-15 juin 1923), Paris, pp. 594-601, 634637, diagrs.

Leroy, L. Le chronométrage au Congrès de Chronometrie.

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, p. 342.

Leseurre, Jean. Considérations sur le centrage et l'équilibre des avions.

La Tech. Aéron., 14e année, n. s., No. 17 (15 mars 1923), Paris, pp. 528-538, ill.

Lesley, E. P. See Münk, Max Michael: Analysis of W. F. Durand's and E. P. Lesley's propeller tests.

Lessage, Aitoré. Hangar en béton armé, pour avions, construit pour le service technique de l'aéronautique à Viliacoublay.

Génie Civil, T. 82, No. 10 (Mar. 10, 1923), Paris, pp. 217-220, ffl.

Letombe. The Letombe engine starter's utility.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 424, 449.

Lewe, Viktor. Compressive strength of tapered airplane struts.

National Advisory Committee for Aeronautics, Technical Notes No. 171, Dec. 1923, W»ih-ington, pp. 7, diagrs.

Lewis, I. M. Helium hunting in the Milky Way.

Science, n. s. Vol. 56 (Dec. 1, 1922), Garrison, sup 9.

Liberty engine. Lieut. C. McMullen wins Liberty engine builders' trophy. Aviation, Vol. 15, No. 16 (Oct. 15, 1923), New York, pp. 479480, ffl.

- See Engines: Comparative mathematical analysis of the stresses occurring

in the cam-shaft drive gears of the Liberty "12" and the Packard "2025" engines.

- See Seymour, L. D.: Is the Liberty engine obsolescent?

Lift. Lift and drag of the Bristol fighter with wings of three aspect ratios.

Aeronautical Research Committee Reports and Memoranda No. 859 (Ae. 99), Apr. 1923, London 1923, pp. 23, ill., tabls.

- See Bacon, David Leonard: The distribution of lift over wing tips and

ailerons.

Light airplanes. Light airplanes as flying scale models of large machines. Good beginning made in France.

Flight, Vol. 15, No. 51 (Dec. 20,1923), London, pp. 761-763, ill.

- On finding the best light aeroplanes.

The Aeroplane, Vol. 25, No. 23 (Dec. 5, 1923), London, p. 538.

- The price of light aeroplanes.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 25 (June 20, 1923), London, p. 464.

- See Blackburne: Engines for light airplanes. The Blackburne 697 c. c.

engine.

- See Douglas: Cycle engines for light planes. The 500 c. c. Douglas

flat twin.

- See Hendon: Light planes at Hendon. First meeting a great success.

- See I. T. : Le grand prix de la motoaviette du Petit Parisien.

- See Lympne: The light plane meeting at Lympne.

-: See M. S.: Le congrès expérimental pour planeurs et moto-aviettes à

Vauville.

Lighting. The field lighting system at Le Bourget.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, p. 35.

Lightning. See Lemoine, Jean: Les accidents de la Coupe Gordon-Bennett des ballons et l'électricité atmosphérique.

- See Winters, S. R. : Lightning protector for balloons and airships.

Lilienthal, Gustav. Der Ruderflug der Vögel.

Automohil Motorrad und Flugverkelve, 5 Jahrg. Nr. 11 (Nov. 1923), Berlin, pp. 255-256.

- Vom Gleitflug zum Segelflug: Flugstudien auf Grund zahlreicher Versuche

und Messungen.

Berlin-Charlottenhurg, C. J. E. Volckmann Nachf. G. m. b. H., 1923, p. 159, III. Volckmanns Bibliothek für Flugwesen, Band 15.

Lincoln-Standard. Lincoln-Standard LS5 commercial airplane.

Aviation, Vol. 15, No. 9 (Aug. 27, 1923), New York, pp. 242-243, ül.

Lioré-Olivier. Avion-Lioré-Olivier biplace, LEO-8.

L'Aérophile, 31e année, Nos. 3-4 (ler-15 fév. 1923), Paris, p. 48, ill.

- See R. D. : L'avion biplace Lioré-Olivier, type LEO-8.

Liptrot, R. N. Three ply and its uses in aircraft construction.

Institution of Aeronautical Engineers, Minutes of Proceedings, No. 8, 1923, London, pp. 7-22

Lister, S. The two-dimentional motion of a lamina in a resisting medium under the action of a propeller thrust.

London, Edinhurgh and Duhlin Philosophical Magazine and Journal of Science, Vol. 46, No. 275 (Nov. 1923), London, pp. 819-827, ill.

Litchfield, P. W. The Goodyear Tire & Rubber Co. has entered into an agree • ment to control the Zeppelin rights for the United States.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 399-401.

Lock, C. N. H. »See Batson, A. S., and C. N. H. Lock: Lateral control at large angles of incidence. Yawing and rolling moments due to aileron movement on a complete model of S. E. 5A.

- See Cowley, W. L., and C. N. H. Lock: A comparison between the aerodynamic properties of two aerofoils of the same section, but with square and rounded wing tips, respectively.

Lodge, John C. Detroit: Automotive capital.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, p. 239, ill.

Loening. The Loening control.

Flight, Vol. 15, No. 17 (Apr. 26, 1923), London, p. 223, 111.

- Loening new monoplane control proves successful.

TT. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, p. 27.

- New monoplane control proves successful.

Aerial Age, Vol 16, No. 1 (Jan. 1923), New York, pp. 20-21, ill.

- New type of flying control proves successful. Demonstration of the

Loening lateral pressure equalizer.

Aviation, Vol. 14, No. 1 (Jan. 1, 1923), New York, p. 13, ill.

Loening, Grover Cleveland. The French aero salon.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 124-126, ill.

- Impressions of European air lines.

Aviation, Vol, 14, No. 9 (Feb. 26,1923), New York, pp. 238-240, ill.

- Military aviation in Europe to-day.

TJ. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 11-12.

- »See Control: New monoplane control proves successful.

Loges, Jean des. L'art de commander dans l'aviation. Paris, 1922, pp. 32.

London. See Civil Aviation Advisory Board: Report on aerodrome facilities of London.

- »See Great Britain, Civil Aviation Advisory Board: Report on aerodrome

facilities of London.

London-Berlin. London-Berlin airway service proposed.

Aviation, Vol. 14, No. 4 (Jan. 22, 1923), New York, p. 105, ill.

Longitudinal control. Note on the determination of longitudinal control forces of airplanes during horizontal flight.

Aerial Age, Vol. 16, No. 6 (June 1923), New York, pp. 267-268.

- Note on the interpretation of wind tunnel experimental data with reference

to the longitudinal damping characteristics of an airplane.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 137-139.

Longitudinal oscillations. »See Everling, E. : Längsschwingungen von Flugzeugen.

- »See Norton, Frederick Harwood, and W. G. Brown: Complete study of

the longitudinal oscillation of a VE-7 airplane.

Lonsdale, John G. How banks can benefit by aerial transport. Aviation, Vol. 15, No. 11 (Sept. 10, 1923), New York, pp. 309-310.

Lôrraine-Diétrich. Les performances du 400 c. v. Lorraine-Dietrich. L'Aérophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris, p. 86, ill*

Los Angeles. »See Carpenter, Ford A.: Landing fields in vicinity of Los Angeles.

Low, A. R. The circulation theory of lift, with an example worked out for an albatross wing profile.

International Air Congress, London, 1923, Report, London, 1923, pp. 255-280, diagrs.

- Review of air-screw theories.

Jour. Roy. Aer. Soc, Vol. 27, Nos. 146, 150 (Feh., June 1923), London, pp. 38-72, 318-319, ill.

- Use of the millibar in aerodynamics.

Nature, Vol. Ill, No. 2790 (Apr. 21, 1923), London, p. 535, ill. Low power. Flying with low power. v

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 21 (May 23, 1923), London, pp. 379-382.

- The low-powered airplane and the professional mind.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 25 (June 20,1923), London, pp. 459-460.

Lübeck, Thor. Suggested minor alterations in the I. A. C.

International Air Congress, London, 1923, Report, London, 1923, pp. 657-659.

Lubricants. See Evans, Elliott A.: Some physical properties of lubricants.

- See Hersey, Mayo Dyer: Viscosity of lubricants at high pressure and

temperature.

- See Stanton, T. E.: The nature of lubricants in engineering practice.

Lubrication. See Chaloner, J. L.: The heavy-oil aero engine.

- See Champsaur, N.: Le problème du graissage dans les moteurs et les

phénomènes de viscosité.

- See Hardecker, John F.: Aeronautical fuel, lubricating, and cooling

systems.

- See Wyman, W. W.: Aeronautical lubrication.

Luckiesh, M. The fairyland of the heavens.

U. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 19-20, ill.

Lucking, D. F. The design of marine aircraft in relation to seaworthiness.

Jour. Roy. Aer. Soc, Vol. 27, No. 155 (Nov. 1923), London, pp. 535-552.

Ludinqton, C. T. An aerial taxi ride.

u. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, pp. 21-23, ill.

- Commercial aeronautics and the national defense.

TJ. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 33-34.

Luftfartsbok. Luftfartsbok, omhandlende Danmark, Finland, Norge og Sverige.

Stockholm, 1922, pp. 314.

Luft-Fahrzeug-Gesellschaft. The L. F. G "Putbus."

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 9 (Feb. 28, 1923), London, p. 158, diagr.

Luke, A. K. Aviation in South America.

The Aeroplane, Vol. 24, Nos. 21, 23 (May 23, June 6, 1923), London, pp. 390, 426-428.

Luke, G. F. Aviation in South America, with an introduction on the South

Atlantic flight.

Journ. Roy. Aer. Soc, Vol. 27, No. 153 (Sept. 1923), London, pp. 450-468.

Luke, Frederick Kitto. Aviation in South America, with an introduction on the South Atlantic flight.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, pp. 333-335, 377-379.

Lupberqer, Edwin. See Rohrbach, Adolf, and Edwin Lupberger: Graphic method for calculating the speed and climbing ability of airplanes.

Ltmpne. Competition conjectures.

Aer. Eng. Suppl. Tha Aeroplane, Vol. 25, No. 15 (Oct. 10, 1923), London, pp. 369-376, 111.

- The English light plane meeting at Lympne.

Aviation, Vol. 15, No. 21 (Nov. 19, 1923), New York, pp. 622-625, ill.

- The light plane competitions at Lympne, October, 8-13.

Flight, Vol. 15, No. 40 (Oct. 4, 1923), London, pp. 602-611, ill.

- The light plane meeting at Lympne.

Flight, Vol. 15, Nos. 41-42 (Oct. 11-18, 1923), London, pp. 618-628, 635-648, ill.

- Lympne—comments and criticisms.

Aer. Eng. Suppl. The Aeroplana, Vol. 25, No. 17 (Oct. 24, 1923), London, pp. 419-424, diagr.

- See M. S.: Le meeting international des avions à faible puissance de

Lympne.

M

M. L. L'avion de Garros au Musée de l'Aéronautique.

L'Aérophile, 31e armés, Nos. 23-24 (ler-15 déc. 1923), Palis, p. 354.

- Congrès international Aéronautique de Londres.

L'Aérophile, 31e année. Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 203-204.

- La coupe Michelin.

L'Aérophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, p. 207.

- Le développement de notre réseau aérien. France—Espagne—Portugal—

Afrique du Nord et Afrique Occidentale.

L'Aérophile, 31e année, Nos. 11-12 (ler-15 juin 1923), Paris, pp. 175-176, ill.

- L'effort Américain pour les records mondiaux.

L'Aérophile, 31e année, Nos. 9-10 (ler-15 mai 1923), Paris, pp. 141-142, ill.

- L'essor des dirigeables en France et en Amérique.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 oct. 1923), Paris, p. 304.

- Le grand prix des avions de transport.

L'Aérophile, Me année, Nos. 19-20 (ler-15 oct. 1923), Paris, pp. 291-295, ill.

- Les nouveaux records de vitesse aux États-Unis.

L'Aérophile, 31e année. Nos. 21-22 (ler-15 nov. 1923), Paris, pp. 328-329, ill.

- Le record du monde de hauteur en hydravion.

L'Aérophile, 31e année, Nos. 23-24 (lar-15 déc. 1923), Paris, p. 360, ill.

M. S. Le congrès expérimental pour planeurs et moto-aviettes à Vauville. L'Aérophile, 31e année, Nos. 17-18 (lar-15 sept. 1923), Paris, pp. 266-270, ill.

- Le meeting international des avions à faible puissance de Lympne.

L'Aérophile, 31e annêa, Nos. 19-20 (ler-15 oct. 1923), Paris, pp. 302-303, ill.

M., G. See G. M-: Moteurs et combustibles.

McAdie, Alexander. Wind and weather.

Naw York, The MacMillan Co., 1923, pp. 82, ill.

MacAllister, J. E. S. See Parkin, J. H., H. C. Crane, and J. E. S. MacAllister: Wing tip research.

McComas, Henry C. The aviator.

New York, E. P. Dutton & Co., 1923, pp. 214, ill.

McConnell, B. M. What Amundsen would face in a flight to the North Pole. Outlook, Vol. 134 (Juna 27, 1923), New York, pp. 272-273, ill.

McCook Field. An aeronautical museum at McCook Field, Aerial Aga, Vol. 16, No. 2 (Feh. 1923), New York, pp. 81-82.

McDarment, Cohley P. New pursuit ship.

U. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, pp. 17-18, ill.

MacDill, Leslie, and F. W. Herman. Design characteristics for most suitable pursuit airplanes.

U. S. Air Service Information Circular, Vol. 5, No. 436 (May 1, 1923), Washington, Government Printing Office, pp. 7, ill.

MacDill, Leslie. A study of controllability, angular velocity, and dynamic stability of an airplane about the axis of pitch.

U. S. Air Service Information Circular, Vol. 5, No. 418 (Apr. 1, 1923), Washington, Government Printing Office, pp. 14, ill.

McIntyre, M. H. Air Service to ask $25,000,000 next year. Aviation, Vol. 15, No. 6 (Aug. 6, 1923) New York, pp. 153.

M'Kechnie, W. E. Soaring flight and the "Olfactory" organs of Birds. Nature, Vol. Ill, No. 2776 (Jan. 13, 1923), London, pp. 48-49.

MacLeod, M. N. Airplane photographic survey.

Journal of the Surveyors' Institution, Vol. 3, No. 6 (Dec. 1923), Westminster, England, pp. 26-36.

- Recent developments of air phototopography. 1. The adjustment of air

photographs to surveyed points. 2. The mapping of large areas of un-surveyed country. B. Melvill Jones and J. C. Griffiths.

Geographical Journal, Vol. 61 No. 6 (June 1923), London, pp. 413-428, ill.

McMullen, C. See Liberty engine: Lieut. C. McMullen wins Liberty engine builders' trophy.

McNamee, L. Aviation and the Navy.

Aviation, Vol. 15, No. 20 (Nov. 12,1923), New York, pp. 604-608, ill.

Machado y Ortega, Luis. Legislación internacional del aire; estudio de derecho internacional público.

Habana, Imprenta "El Siglo XX," 1923, pp. 27.

Macready, John A. See Kelley, Oakley G., and John A. Macready: The 2,000 mile flight of the Army Fokker T2. Official report of Lieutenants Kelly and Macready on flight from San Diego to Fort Benjamin Harrison.

- See Lecointe, Sadi, and John A. Macready: How high altitudes are

attained.

Madelung, Georg H.' The development of the Hannover sailplane.

Journ. Soc. Automotive Engineers, Vol. 12, No. 1 (Jan. 1923), New York, pp. 77-85, ill.

Maqaldi, Giulio. Aspetti aerodinamici della costruzione de grandi velivoli. Atti Assoc. Ital. Aerotecn., 1923, Vol. 3, N. 3, Roma, 1923, pp. 198-211, ill.

- I montanti per a.erei.

Atti Assoc. Ital. Aerotecn., 1923, Vol. 3, N. 1, Roma, 1923, pp. 12-40, ill.

Maqnan, Antoine. Les caractéristiques des oiseaux suivant le mode de vol; leur application ä la construction des avions. Ouvrage subventionné par le sous-secrétariat de l'Aéronautique.

Annales des Sciences Naturelles. Zoologie. 10e serie, T5, 1922, Paris, pp. 125-334, ill.

- See Huguenard, E., A. Magnan et A. Planiol: Sur une méthode de mesure

de la vitesse et de la direction instantanées du vent.

Mail. Air-mail night flying schedule between New York and San Francisco

u. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, p. 30.

- Air-mail service schedule.

u. S. Air Service, Vol. 8, No. 6 (May 1923), Washington, p. 32,

- Airplane-mail service across the continent.

Current Opinion, Vol, 76 (Sept. 1923), New York, pp. 347-348, map.

Mail. Annual report of the United States air-mail service.

Aviation, Vol. 15, No. 26 (Dec. 24, 1923), New York, pp. 770-771, ill.

- Consolidated statement of the operation and performance of the air-mail

service for the calendar year 1922.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, p. 119.

- Contract air-mail services advertised.

Aviation, Vol. 14, No. 18 (Apr. 30, 1923), New York, pp. 468-469.

- A day-and-night air-mail service.

American Review of Reviews, Vol. 68, No. 402 (July 1923), New York, pp. 100-101, ill,

- The epoch-making night mail flights.

Aviation, Vol. 15, No. 10 (Sept. 3, 1923), New York, pp. 266-269, ill.

- J. P. Moore wins air-mail trophy race.

Aviation, Vol. 15, No. 16 (Oct. 15, 1923), New York, pp. 474-476, ill.

--N. A. C. A. recommendations for the air-mail service.

Aviation, Vol. 14, No. 6 (Feb. 5, 1923), New York, p. 155.

- New American night-flying mail planes.

Flight, Vol. 15, No. 44 (Nov. 1, 1923), London, pp. 672-674, ill

- The night flight of the air mail.

Aeronautical Digest, Vol. 3, Nos. 3,4 (Sept., Oct. 1923), New York, pp. 153-154,222-231,280, ill.

- Night mail in reality.

Literary Digest, Vol. 78 (Sept. 8, 1923), New York, pp. 16-17. ill., map.

- Path of light for the New York-Frisco air mail.

Literary Digest, Vol. 77 (May 12, 1923), New York, pp. 71-74.

- Start of the night air mail.

Aviation, Vol. 15, No. 8 (Aug. 20, 1923), New York, p. 222, map.

- The transcontinental air mail.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 334.

- Transcontinental air mail New York-San Francisco.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 219-221.

- United States air mail has flown 5,000,000 miles.

Aviation, Vol. 14, No. 19 (May 7, 1923), New York, pp. 502-503.

- The United States air-mail experiments.

Flight, Vol. 15, No. 41 (Oct. 11, 1923), London, pp. 629-630, ill.

- The United States air-mail night flying.

Tha Aeroplane, Vol. 25, No. 20 (Nov. 14, 1923), London, p. 484.

- Winter schedule of air-mail service with report of performances covering

period of eighteen months' operations.

Aviation, Vol. 14, No. 3 (Jan. 15, 1923), New York, pp. 73, 76.

—— See Agen, Myer: The air-mail service of Europe.

- See Australia: Australia's air-mail services.

- See Brinker, J.: And now they'll fly by night.

- See Brunner, Frank J.: Night air-mail service from coast to coast.

- See Curtiss: The Curtiss night mail plane.

- See Eyncourt, Eustice d', and John H. Norbeth: A proposed aircraft-carrying mail steamer.

- See Gregg, Willis R., and J. Parker Van Zandt: The wind factor in flight:

An analysis of one year's record of the air mail.

Mail. See Henderson, Paul: Review of the air-mail night-flying trials.

- See Kelly, M. Clyde: Air mail delivers striking evidence against inaction.

- See Kelly, M. Clyde: The Post Office Department is willing to contract

with private agencies for the transportation of mail matter by aircraft.

- See Murphy, Prank: Night flying in the air mail.

- See Radio: Air-mail planes to have radio telepho.

- See Taylor, Edward P. : The air mail an economic necessity.

- See Williamson, F. H.: Air mails.

- See Williamson, F. H.: Future of air-mail services.

- See Work, Hubert: Speeding the mails.

Maillard, Pierre. Les ailes et la résistance de l'air.

Paris, 1923.

Maistre, C. le. International aircraft standards.

International Air Congress, London, 1923, Report, London, 1923, pp. 137-141.

Maitland, Lester J. Lieut. L. J. Maitland makes new world speed record. Aviation, Vol. 14, No. 17 (Apr. 23, 1923), New York, p. 443, ill.

—— Markings for American airways.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, pp. 327-329, 381, ill.

Mallock, A. Expansion of the wings of Lepidoptera after emergence from chrysalis.

Nature, Vol. 112, No. 2801 (June 7, 1923), London, pp. 7-8, ill.

Malone, Cecil L'Estrange. Commercial aircraft and the state.

International Air Congress, London, 1923, Report, London, 1923, pp. 700-703.

Maps. Airplane camera surveys Mississippi Delta.

Science, n. s. Vol. 56 (Dec. 1, 1922), Garrison, pp. 10-12.

- Map making from air photographs.

Nature, Vol. 112, No. 2806 (Aug. 11, 1923), London, pp. 194-197. Review of book by J. W. Gordon.

- See Birdseye, C. H.: Aerial mapping by the Geological Survey.

- See Cassinis, G. : Il rilenamento topografico dagli aerei.

- See Dacy, George H.: Mapping from the skies.

- See Photogrammetry, Photography, Topography.

Marbtjry, Elisabeth. The triumph of Wilbur Wright at Le Mans.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, p. 18, ill.

Marcotte, E. Les carburants et l'industrie des lignites.

International Air Congress, London, 1923, Report, London, 1923, pp. 564-565.

- Organisation du balisage lumineux nocturne.

International Air Congress, London, 1923, Report, London, 1923, pp. 628-631.

- Les hélices aériennes et la navigation aérienne.

Paris, 1923, pp. 5, ill.

Margotjlis, W. Les hélicoptères.

Paris, Gauthiers-Villars et Cie, 1923, pp. 91, ill.

- See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Margoulis,

R. Verduzio, Richard Katzmayr, E. B. Wolff, and A. F. Zahm: Standardization and aerodynamics,

Margotjlis, W. See Toussaint, A., W. Margoulis et R. Pris: Répertoire d'aérodynamique expérimentale.

Marie, Felix. See Blanchet, Georges: Aviateurs contemporains. Le Colonel Félix Marie. «

Marine aircraft. See Lucking, D. F.: The design of marine aircraft in relation to seaworthiness.

Markings. List of civil aircraft markings.

Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, p. 369.

Marks, Lionel S. The airplane engine.

New York, McGraw-Hill Book Co. (Inc.), 1922.

Marsh, William Lockwood. See International Air Congress: International Air Congress. Report.

Marshall, Dorothy. On the rate of transmission of heat from the walls of an airship passenger car.

Aeronautical Research Committee, Reports and Memoranda, No. 797 (Ae. 53), Apr., 1922, London, 1923, pp. 11, tahls., diagr.

Martin. The Glenn L. Martin night mail plane.

Aviation, Vol. 15, No. 10 (Sept. 3, 1923), New York, pp. 270-271, ill.

- Martin bomber lands with elevator controls gone.

TJ. S. Air Service, Vol. 8, No. 2 (Feh. 1923), Washington, p. 26.

- The Martin MS-1, Navy ship board scout.

Flight, Vol. 15, No. 22 (May 31, 1923), London, p. 298, ill.

- Martin Navy all-metal scout seaplane.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, p. 51, 111.

- The Martin "Night mail plane."

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 13 (Sept. 26, 1923), London, p. 314, 111.

- The Martin United States Navy "Gun-spotter" monoplane.

Flight, Vol. 15, No. 12 (Mar. 22, 1923), London, pp. 155-166, ill.

Martin, Jack. Wind, tunnels.

Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, pp. 26, 46.

Martin-Navy. The Martin-Navy all-metal scout seaplane. Aerial Age, Vol. 16, No. 6 (June, 1923), New York, p. 263, ill.

- The shipboard scout seaplane, the Martin-Navy.

Aviation, Vol. 14, No. 18 (Apr. 30, 1923), New York, p. 474, ill.

Martinot-Lagarde. Les accessoires du groupe motorpropulsuer. Aéronautique, T. 5, No. 48 (May 1923), Paris, pp. 185-193, ill.

- Les groupes motorpropulseurs au salon.

Aéronautique, T. 5, No. 45 (fév. 1923), Paris, pp. 52-61,111.)

Marvin, Charles F. The Weather Bureau and aviation.

Aeronautical Digest, Vol. 2, No. 1 (Jan. 1923), New York, pp. 6-7, ill.

- The effect of a temperature of 212° F. on steel submitted to alternating

torsion.

Aeronautical Research Committee, Reports and Memoranda, No. 863 (M. 21), Feh., 1923, London, 1923, pp. 12, tahls.

- The mechanics of the Wohler rotating bar fatigue test.

Aeronautical Research Committee, Reports and Memoranda, No. 838, (M. 13), Sept., 1922, London, 1923, pp. 8.

Matthews, Robertson. Influences in the selection of a cycle for small highspeed engines running on solid or airless injection with compression ignition. National Advisory Committee for Aeronautics, Technical Notes No. 149, July 1923, Washington, pp. 11, tahls., diagrs.

Matthews, Robertson, and A. W. Gardiner. The time lag and interval of discharge with a spring-actuated fuel-injection pump.

National Advisory Committaa for Aaronautics, Technical Notes No. 159, Sept. 1923, Washington, pp. 8, tabls., dlagrs.

Maublanc, Pierre André, and Victor Charles Marie Ratié. The medical examination of airmen; a practical guide for use in the examination of members of the air service and its recruits. Translated from the French by Norman Ball.

London, J. Bale, sons and Danielsson, Ltd., 1920, pp. x, 88.

Matjghan. Lieutenant Maughan's successful failure.

Litarary Digest, Vol. 78 (Aug. 11, 1923), Naw York, pp. 53-54.

Maurain, Ch. See Painlevé, Paul; Emile Burel et Ch. Maurain: L'aviation.

Mater, G. Drei neue kleine L. F. G.,-Flugzeuge.

Motorwagen, Bd. 25, No. 32 (Nov. 20,1922), Barlln, pp. 614-617, ill.

- Neue deutsche Verkehrsflugzeuge.

Motorwagan, Bd. 26, No. 1 (Jan. 10,1923), Berlin, pp. 10-11, ill.

Mato, R. H. The design of commercial aircraft.

International Air Congress, London, 1923, Report, London, 1923, pp. 784-792.

- The development of high-speed aircraft.

Flight, Vol. 15, No. 49 (Dec. 6, 1923), London, pp. 743-745.

Mecozzi, Amedeo. L'aeroplano e l'aviatore. Milano, Vallardi, 1923.

Medical service. Air medical service.

U. S. Air Sarvice Information Circular, Vol. 4, No. 359 (Aug. 1,1922), Washington, Govarn-ment Printing Omca, pp. 73, ill. Vol. 5, No. 414 (Apr. 1, 1923), pp. 80, ill.

Medicine. See Air Ministry: Health of the R. A. F. Report for 1921.

- See Brichambaut, Perrin de, et Pierre Béhague: Malaises des aviateurs.

- See R. D.: L'Inauguration du centre médical d'examens et d'études de

l'aéroport du Bourget.

- See Vincent: Les avions sanitaires.

Mediterranean. See R. D.: La Course-Croisière de la Méditerranée. Meisinger, C. Le Rot. The aviator and the meteorologist.

U. S. Air Sarvice, Vol. 8, No. 5 (May 1923), Washington, pp. 31-32.

- The scope of aeronautical meteorology.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 251-252, 295, ill.

Meissner, Walther. Entfernungs- und Höhenmessung in d. Luftfahrt. 1922, pp. iv, 92.

Melot, Vincent J. National Guard handicaps.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 14-16.

Merchants' exchange trophy. Lieut. H. L. George wins merchants' exchange trophy race.

Aviation, Vol. 15, No. 18 (Oct. 15, 1923), Naw York, pp. 482-484, 111.

Meredith, F. W. Determination of lift and drag coefficients during a stall by means of accelerometers.

Aaronautical Research Committee, Reports and Memoranda, No. 861 (Aa. 100), Mar. 1923, London, 1923, pp. 10. tabls., diagrs.

- Full scale determination of the characteristics of a variable pitch air screw.

Aeronautical Research Committea, Reports and Memoranda, No. 870 (Ae. 106), Mar. 1923, London, 1923, pp. 3, ill., tabls., diagrs.

Merrill, A. A. Simple chart for choosing a wing surface.

Aviation, Vol. 15, No. 4 (July 23, 1923), New York, p. 96, chart.

Metal construction. See Junkers, Hugo: Metal aircraft.

- See Junkers, Hugo: Metal aeroplane construction.

- See Miller, Roy G., and F. E. Seiler, jr. : The design of metal airplanes.

- See North, John D. : The case for metal construction.

- See Upson, Ralph: Metal-clad versus fabric-covered rigid airships.

- See Wright: The Wright all-metal pursuit airplane.

- See Zimmerman, P. G.: The aeromarine all-metal hull flying boat.

Metals. See Jenkin, C. F. : Fatigue in metals.

- See Vickers, Charles: Metals and their alloys.

Meteorograph. See Wigand, Albert, and Heinrich Koppe: Ein neuer Flugzeug-Meteorograph.

Meteorology. Aerological aid for aviators.

Aerial Age, Vol. 16, No. 6 (June 1923), New York, pp. 276-278.

- Inventor says he can make rain, but Weather Bureau won't predict his

shower.

U. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, p. 27.

- See Baldit, Albert: Études élémentaires de météorologie pratique.

- See Burzio, Filippo: Theorie délia dinamica atmosfetica.

- See Gamba, Pericle: La caratterististiche dell'atmosfera terrestre in val

Padana.

- See Hay, G. R.: Supplying pilots of London-Continental air routes with

weather forecasts.

- See McAdie, Alexander: Wind and weather.

- See Meisinger, C. Le Roy: The aviator and the meteorologist.

- See Meisinger, C. Le Roy: The scope of aeronautical meteorology.

- See Ripley, C. M. : What's above the clouds.

- See Shaw, Napier: The air and its ways.

- See Sherry, B. J.: The meteorological service on the Army's model airway.

Meyer, Carl F. G. Financing an air meet.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, pp. 39, 41.

Meyer, C. W. Erich. Das Schulflugzeug Mark R IV 23.

Motorwagen, 26, Jahrg., Heft 25 (Sept. 10, 1923), Berlin, pp. 381-382, ill.

- Die Geschichte des freitragenden verspannungslosen Flugzeuges.

Motorwagen, 26, Jahrg., Heft 16-19 (June 10-July 10, 1923), Berlin, pp. 247-250, 266-270, 279-284, 297-303, ill.

- Segelfiug.

Schweiszerische Bauzeitung, Bd. 81, No. 9 (Mar. 3, 1923), Zurich, Switzerland, pp. 103-106 107, m.

Meyer, P. Is there any available source of heat energy lighter than gasoline?

National Advisory Committee for Aeronautics, Technical Notes No. 136, Apr. 1923, Washington, pp. 6.

- Sources of heat energy other than gasoline.

Aviation, Vol. 14, No. 21 (May 21, 1923), New York, pp. 558-559.

Michelin. See M. L.: La coupe Michelin.

Michell, A. G. M. See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson, F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

Mignet. The Mignet light 'plane.

Flight, Vol. 15, No. 24 (June 14, 1923), London, p. 321, 111.

Military aeronautics. Aerial bombardment maneuvers with warships.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, p. 190.

- Aircraft in war.

Aeronautical Digest, Vol. 3, No. 6 (Nov. 1923), New York, p. 340.

- Airplanes and general slaughter in the next war.

Literary Digest, Vol. 79 (Nov. 17, 1923), New York, pp. 60-66, ill.

- Air power and peace.

Independent, Vol. 110 (May 26, 1923), New York, pp. 329-330.

- The air service in the national guard.

Aviation, Vol. 14, No. 2 (Jan. 8, 1923), New York, p. 48.

- Air Service makes impressive mobilization test.

Aviation, Vol. 15, No. 11 (Sept. 10, 1923), New York, pp. 305-306, ill.

- Army committee finds Air Service situation critical.

Aviation, Vol. 15, No. 19 (Nov. 5, 1923), New York, pp. 572-573.

- Bombs, battleships, Avros and Supermarines.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 6 (Aug. 8, 1923), London, pp. 155-156.

- Bombs for babies; bombing from airplanes in India and Mesopotamia.

Nation, Vol. 116 (Mar, 21, 1923), New York, p. 328.

- Bombs sink battleships Virginia and New Jersey.

Aviation, Vol. 15, No. 12 (Sept. 17, 1923), New York, pp. 330-334, ill.

- Combined Coast Artillery-Air Service exercises held at Fort Monroe in

October and November, 1922.

Aviation, Vol. 14, No. 19 (May 7, 1923), New York, p. 501.

- Compensation for American use of British aircraft.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 21 (May 23, 1923), London, p. 384.

- French sky hornets worry Britain.

Literary Digest, Vol. 78 (July 14, 1923), New York, pp. 12-13.

- Industrial mobilization and aviation.

Aviation, Vol. 14, No. 13 (Mar. 26, 1923), New York, pp. 344-346.

- New antiaircraft equipment.

Aviation, Vol. 15, No. 8 (Aug. 20, 1923), New York, p. 224.

- On army cooperation.

The Aeroplane, Vol. 25, Nos. 13, 15 (Sept. 26, Oct. 10, 1923), London, pp. 305-307, 366, 37i

- On war.

The Aeroplane, Vol. 25, No. 5 (Aug. 1, 1923), London, pp. 117-120, 135-136.

- The question of battleships versus airplane.

Aviation, Vol. 14, No. 24 (June 11, 1923), New York, pp. 634-638, ill.

- Relative strengths of European air forces.

Aviation, vol. 14, No. 5 (Jan. 29, 1923), New York, p. 136.

- To mend war, not end it; rules now agreed upon by the commission of

jurists sitting at The Hague.

Literary Digest, Vol. 78 (July 14, 1923), New York, p. 14.

Military aeronautics. Total cost of war aviation, $382,111,063.50. Aviation, Vol. M, No. 13 (Mar. 26, 1923), New York, pp. 338-339.

- The United States Army Air Service, 1922-23.

Aviation, Vol. 15, No. 22 (Nov. 26, 1923), New York, pp. 650-652.

- See Ballou, S.: Airplane and coast defense.

- See Benn, W. : Air force.

- See Commission of Jurists on the Laws of War: General report [on radio

and aerial warfare] of the commission of jurists at The Hague.

- See Easterbrook, L. F.: Air force and air folly.

- See France. Ministère de la Guerre (Direction de l'aéronautique) :

Guide pour les examinateurs des candidats aux brevets de mécanician d'aéronautique et aux certificats d'instruction technique.

- See Grey, Charles Grey: Aircraft in war.

- See Loening, Grover Cleveland: Military aviation in Europe to-day.

- See Patrick, Mason M.: Some phases of the Army Air Service.

- See Pershing, John J.: Military aviation.

- See Ricker, George W.: Position finding by airplane.

- See Rodgers, William Ledyard: The laws of war concerning aviation and

radio.

- See Royse, M. W.: Next war in the air.

- See Scammell, J. M.: Policies and the new armament competition.

- See Sneed, Albert L.: British air fleets hold Turkey in grip.

- See Walser, A. A.: Air power.

- See Weeks, John W. : Military and commercial aviation.

Miller, B. A. Airplane wing fittings.

United States Air Service Information Circular, Vol. 4, No. 287 (Jan. 2, 1923), Washington, Government Printing Office, pp. 20, ill.

Miller, J. M. Description of carburetor test chamber and method of making computations.

United States Air Service Information Circuler, Vol. 5, No. 405, April 1, 1923, Washington, Government Printing Office, pp. 16, ill.

Miller, Roy G., and F. E. Seiler, jr. The design of metal airplanes. Aviation, Vol. 14, No. 8 (Feb. 19, 1923), New York, pp. 210-214, ill.

Miller, William H. The efficiency of a wind tunnel.

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, p. 173.

Millibar. See Low, A. R.: Use of the millibar in aerodynamics.

Mingos, H. Airship program.

Outlook, Vol. 135 (Sept. 12, 1923), New York, pp. 61-64, 111.

Minino. Mining by airplane.

Literary Digest, Vol. 75 (Dec. 30,1922), New York, p. 18.

Mirea, M. St. N. Note sur le calcul des ailes d'un avion.

International Air Congress, London, 1923, Report, London, 1923, pp. 391-395, diegrs.

Mises, Richard von. Fluglehre. Vorträge über Theorie u. Berechnung d. Flugzeuge in elementarer Darstellung.

1922, pp. vii, 210, ill.

Mitchell, William. Aviation and geology.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 8-10.

- General Mitchell on aeronautical progress.

Aviation, Vol. 14, No. 7 (Feb. 12, 1923), New York, p. 187.

- Recent progress in airplane devices.

Eeview of Eeviews, Vol. 67 (June 1923), New York, pp. 635-638, ill.

Mitchell, William, Clayton L. Bissell, and Alfred Verville. Report of inspection trip to France, Italy, Germany, Holland, and England, made

during the winter of 1921-22; technical supplement.

Air Service Information Circular (aviation) published by the Chief of Air Service, Vol. 4, No. 391, Nov. 1, 1922. Washington, Government Printing Office, 1923, pp. 206, 111.

Mitchell trophy. Capt. Burt E. Skeel wins Mitchell trophy race.

Aviation, Vol. 15, No. 16 (Oct. 15, 1923), New York, p. 478, ill.

Mittelholzer, W. Flying in the arctic.

Living Age, Vol. 318 (Sept. 15,1923), Boston, pp. 505-510.

Model supports. See Bacon, David L.: Model supports and their effect on the results of wind tunnel tests.

Models. See Baker, G. S.: Ten years' testing of model seaplanes.

- See Mulvihill: E. J. Lange wins Mulvihill model trophy contest.

Moedebeck. Moedebecks Taschenbuch für Flugtechniker und Luftschiffer bearb. u. hrsgeg. v. R. Süring u. K. Wegener.

Berlin, Verlag von M. Krayn, 1923, pp. 920, ill.

v Moffett, Charles A. Commercial possibilities of aviation.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 103-104.

Moffett, William A. The aeronautical engine.

TJ. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 13-15, ill.

- Air supremacy.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 416-417.

- Aviation and the fleet.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 81-82, 148, ill.

- Aviation progress in America.

Current History Monthly Magazine of New York Times, Vol. 17 (Feb. 1923), New York, pp. 775-782, ill.

- Guardian of gateway to the world.

U. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, pp. 18-19.

- Mystery ship, challenger of sea and air.

Outlook, Vol. 134 (June 20, 1923), New York, pp. 231-233, ill.

- Rigid airship building and operation in this country originated with the

TJ. S. Navy.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 402-404, ill.

- Seaplane routes for our water courses.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 242-243.

- The United States Naval Air Service.

Aviation, Vol. 14, No. 21 (May 21, 1923), New York, pp. 556-557, ill.

Molthan, Wilhelm. »See Münk, Max Michael, and Wilhelm Molthan: Tests on an airplane model AEG-D-I of the Allgemeine Elektricitats Gesellschaft, A.-G., airplane construction section conducted at the Göttingen model testing laboratory for aerodynamics.

Monnieb, Marcel. Les inconvénients de l'emploi des bois en aviation et les remèdes à apporter.

Techn. Aéron., 14e année, n. s., No. 15 (15 jan. 1923), Paris, pp. 450-460, ill.

MoNNiN, Marcel. Les inconvénients de l'emploi des bois en aviation et les remèdes à apporter.

La Technique Aéronautique, T. 14, No. 15 (15 Jan. 1923), Paris, pp. 450-460, ill.

Monoplanes. A variable camber monoplane.

Plight, Vol. 15, No. 11 (Mar. 15, 1923), London, pp. 143-145, ill.

Montjotj, Gut de. Czynniki rozwoju niemieckiego lotnictwa.

Warszawa, Bibljoteczka "Lotu," 1921, pp. 27. Cover dated 1922.

- Impressions d'Allemagne. D'où viennent nos déceptions. Enquête sur

l'aviation allemande.

Paris, 1922, pp. 148.

Moore, H. F., and T. M. Jasper. An investigation of the fatigue of metals. Series of 1922.

Urbana, University of Illinois, 1923, pp. 100. Engineering Experiment Station, Bulletin No. 136.

Moore, J. F. See Mail: J. F. Moore wins air-mail trophy race.

Moore, Richard B. ' Helium, a natural asset.

Transactions of the American Institute of Mining and Metallurgical Engineers, No. 1269-M, Aug. 1923, pp. 11.

Abstract in Mining and Metallurgy, Vol. 4, No. 200 (Aug. 1923), New York, pp. 426-427.

Mooring. The U. S. Navy airship mooring mast.

Plight, Vol. 15, No. 9 (Mar. 1, 1923), London, pp. 124-125, ill.

Morptjrgo, Emilio. Les droits et les devoirs des états neutres en ce qui concerne les aéronefs des puissances belligérantes.

Revue Juridique Internationale de la Locomotion Aérienne, nov. 1923, Paris, pp. 497-508.

Moran, C. War on the boll weevil.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, pp. 54-55, ill.

Morris, J. On the stability of aero engines.

Journ. Roy. Aer. Soc, Vol. 27, No. 148 (Apr. 1923), London, pp. 182-217.

Morrison, Lacey H. Diesel engines.

New York and London, McGraw-Hill Publishing Co., Ltd., 1923, pp. xiii, 598, ill.

Moseley, C. C. Air Service reserve of southern California.

Aviation, Vol. 15, No. 27 (Dec. 31, 1923), New York, pp. 801-802, ill.

Moss, H. Air consumption and B. H. P. of aero engines.

Aeronautical Research Committee, Reports and Memoranda, No. 798 (E. 3), Mar., 1922, London, 1922, pp. 19, ill. tahls., diagrs.

Moss, H., and W. J. Stern. Phase setting of engine indicators.

Aeronautical Research Committee, Reports and Memoranda, No. 878 (E. 7), June 1923, London, 1923, pp. 12.

Motor gliding. On motor gliding.

The Aeroplane, Vol. 25, Nos. 15-16 (Oct. 10-17, 1923), London, pp. 361-364, 385-402, ill.

MouiLLARn, L. P. Le vol sans battements. Reconstitué et précédé d'une étude sur l'oeuvre ignorée de L. P. Mouillard par André Henry-Coüannier.

Paris, 1923, pp. 480, ill.

Müller, Fritz. See Bredow, Traugott, und Fritz Müller: Das Luftverkehrsgesetz vom 1. August 1922.

Muffling, Adrian van. Transporting ore by airplane.

Engineering and Mining Journal-Press, Vol. 116, No. 19 (Nov. 10, 1923), New York, pp. 797-802, ill.

61287—26--7

Mulvihill, Bernard H. Approaching manhood's estate in aeronautics. Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 245, 293.

- Do we need a national aeronautic association?

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, pp. 144, 196.

- E. J. Lange wins Mulvihill model trophy contest.

Aviation, Vol. 15, No. 16 (Oct. 15, 1923), New York, p. 484.

- Homogeneous air organization.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 131-132.

- Why the civilian aero infant must be healthy.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, p. 332.

Mttmmert. The "Mummert" (U. S. A.) light plane.

Flight, Vol. 15, No. 43 (Oct. 25, 1923), London, p. 656, ill.

- New Mummert sport plane.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, p. 193, ill.

Münk, Max Michael. Analysis of Doctor Schaffran's propeller model tests.

National Advisory Committee for Aeronautics, Technical Notes No. 158, Sept. 1923, Washington, pp. 5, ills., tabls., diagrs.

- Analysis of W. F. Durand's and E. P. Lesley's propeller tests.

National Advisory Committee for Aeronautics, Report No. 175, Dec. 10,1923, Washington, Government Printing Office, 1923, pp. 14, diagrs.

- The determination of the angles of attack of zero lift and of zero moment,

based on Munk's integrals.

National Advisory Committee for Aeronautics, Technical Notes No. 122, Jan. 1923, Washington, pp. 9, diagrs.

Monk, Max Michael, and Gunther Cario. Downwash of airplane wings.

National Advisory Committee for Aeronautics, Technical Notes No. 124, Jan. 1923, Washington, pp. 9, diagrs.

Münk, Max Michael. General biplane theory.

National Advisory Committee for Aeronautics, Report No. 151, Washington, Government Printing Office, 1922, pp. 47, tabls.

- General theory of windmills.

National Advisory Committee for Aeronautics, Technical Notes No. 164, Oct. 1923, Washington, pp. 5, diagrs.

- Reduction in efficiency of propellers due to slipstream.

National Advisory Committee for Aeronautics, Technical Notes No. 170, Dec. 1923, Washington, pp. 6.

Münk, Max Michael, and Wilhelm Molthan. Tests on an airplane model, AEG-D-I of the Allgemeine Elektricitats Gesellschaft, A.-G., airplane construction section conducted at the Göttingen model testing laboratory for aerodynamics.

National Advisory Committee for Aeronautics, Technical Notes No. 128, Feb. 1923, pp. 4, tabls.

Munro, D. Guiding principles in the medical selection and care of aviators. International Air Congress, London, 1923, Report, London, 1923, pp. 730-732.

Murphy, Frank. Night flying in the air mail.

Aeronautical Digest, Vol. 2, No. 2 (Feh. 1923), New York, pp. 78-79, ill.

Musée de l'Aéronautique. See M. L.: L'avion de Garros au Musée de l'Aéronautique.

Musset, Paul. La Coupe Aumont-Thiéville.

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, pp. 337-241, map, port.

N

N. B. S.-l. Performance test of N. B. S.-l (Curtiss) equipped with two 400 Liberty "12" engines.

United States Air Servica Information Circular, Vol. 5, No. 435 (May 1, 1923), Washington, Government Printing Office, pp. 5, ill.

Nadar, Felix Totjrnachon. See Brahm, Alcanter de: La collection Nadar.

Nathan, Matthew. Aviation in Queensland, Australia.

Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, pp. 170-171.

National Advisory Committee for Aeronautics. Aeronautics. Eighth annual report of the National Advisory Committee for Aeronautics, 1922. Including Technical reports Nos. 133 to 158.

Washington, Government Printing Office, 1923, pp. 708, ill., tabls. diagrs. Technical Reports: No. 133. Tha tail plana, by Mai M. Munk, pp. 53-87. No. 134. Performance of Maybach 300-horsepowar airplane engine, by S. W. Sparrow, pp. 89-99. No. 135. Performance of B. M. W. 185-horsepower airplane engine, by S. W. Sparrow, pp. 101110. No. 136. Damping coefficients due to tail surfaces in aircraft, by Lynn Chu, pp. 111-124 No. 137. Point drag and total drag of Navy struts No. 1 modified, by A. F. Zahm, R. H. Smith, and G. C. Hill, pp. 125-139. No. 138. The drag of "C" class airship hull with varying length of cylindric midships, by A. F. Zahm, R. H. Smith, and G. C. Hill, pp. 141-149. No. 139. Influence of model surface and air flow texture on resistance of aerodynamic bodies, by A. F. Zahm, pp. 151-157. No. 140. Lift and drag effects of wing-tip rake, by A. F. Zahm R. M. Baer, and G. C. Hill, pp. 157-165. No. 141. Experimental research on air propellers, V, by W. F. Durand and E. P. Lesley, pp. 167-241. No. 142. General theory of thin wing sections, by Max M. Munk, pp. 243-261. No. 143. Analysis of stresses in German airplanes, by Wilhelm Hoff, pp. 263-316. No. 144. The decay of a simple eddy, by H. Bateman, pp. 317-323. No. 145. Intarnal stresses in laminated construction, by Forest Products Laboratory, pp. 325-382. No. 146. The six-component wind balanca, by A. F. Zahm, pp. 383-395. No. 147. Standard atmosphere, by W. R. Gregg, pp. 397-409. No. 148. The pressure distribution over tha horizontal tail surfaces of an airplane, III, by F. H. Norton and W. G. Brown, pp. 411-438. No. 149. Pressure distribution over the rudder and fln of an airplane in flight, by F. H. Norton and W. G. Brown, pp. 439-448. No. 150. Pressure distribution over thick airfoils-model tests, by F. H. Norton and D. L. Bacon, pp. 449-471. No. 151. General biplane theory, by Max M. Munk, pp. 473-517. No. 152. Tha aerodynamic properties of thick airfoils, II, by F. H. Norton and D. L. Bacon, pp. 519-533. No. 153. Controllability and maneuverability of airplanes, by F. H. Norton and W. G. Brown, pp. 535-552. No. 154. A study of taking off and landing an airplane, by T. Carroll, pp. 553-560. No. 155. A study of airplana maneuvers with special referenca to angular velocities, by H. J. E. Reid, pp. 561-570. No. 156. The altitude effect on air speed indicators, II, by H. N. Eaton and W. A. MacNair, pp. 571616. No. 157. Nomenclature for Aeronautics, by National Advisory Committea for Aeronautics, pp. 617-675. No. 158. Mathematical equations for heat conduction in the fins of air-cooled engines, by D. R. Harper and W. B. Brown, pp. 677-708.

- Bibliography of Aeronautics 1917-1919, by Paul Brockett.

National Advisory Committea for Aeronautics, Washington, Government Printing Offica 1923, pp. 494.

- Making America independent in the air.

Mech. Eng., Vol. 45, No. 9 (Sept. 1923), New York, pp. 513-520, ill.

- National Advisory Committee for Aeronautics, compressed air wind

. tunnel.

Aerial Age1, Vol. 16, No. 1 (Jan. 1923), Naw York, pp. 8-9, ill.

- National Advisory Committee for Aeronautics control position recorder.

Aarial Aga, Vol. 16, No. 5 (May 1923), Naw York, p. 234, 111.

- The National Advisory Committee for Aeronautics three component

accelerometer.

Aarial Age, Vol. 16, No. 2 (Fab. 1923), Naw York, pp. 74-76, ill.

- New National Advisory Committee for Aeronautics air speed meter.

Aerial Aga, Vol. 16, No. 7 (July 1923), New York, pp. 323-324, 111.

- Publications of the American Advisory Committee for Aeronautics.

Aar. Eng. Suppl. Tba Aeroplane, Vol. 24, No. 9 (Feb. 28,1923), London, pp. 155-166.

National Advisory Committee for Aeronautics. Report No. 151. General biplane theory, by Max M. Munk.

National Advisory Committee for Aeronautics, Washington, Government Printing Office, 1922, pp. 47, tabls.

-- Report No. 157. Nomenclature for aeronautics, by National Advisory

Committee for Aeronautics.

Prepared by a special conference on aeronautical nomenclature, composed of representatives of the Army and Navy air services, the air-mail service, the Bureau of Standards, the National Advisory Committee for Aeronautics, Society of Automotive Engineers, and Aeronautical Chamber of Commerce.

National Advisory Committee for Aeronautics, Feb. 19, 1923, Washington, Government Printing Office, 1923, pp. 59, ill.

— Report No. 158. Mathematical equations for heat conduction in the fins of air-cooled engines, by D. R. Harper, 3d, and W. B. Brown.

National Advisory Committee for Aeronautics, Mar. 1, 1923, Washington, Government Printing Office, 1923, pp. 32, diagrs.

- Report No. 159. Jet propulsion for airplanes, by Edgar Buckingham.

National Advisory Committee for Areonautics, May 21, 1923, Washington, Government Printing Office, 1923, pp. 18, tabls", diagrs.

- Report No. 160. An airship slide rule, by E. R. Weaver and S. F. Pickering.

National Advisory Committee for Aeronautics, July 19, 1923, Washington, Government Printing Office, 1923, pp. 12, ill., diagr.

- Report No. 161. The distribution of lift over wing tips and ailerons, by

David L. Bacon.

National Advisory Committee for Aeronautics, Aug. 14, 1923, Washington, Government Printing Office, 1923, pp. 24, ill., diagrs.

--Report No. 162. Complete study of the longitudinal oscillation of a

VE-7 airplane, by F. H. Norton and W. G. Brown.

National Advisory Committee for Aeronautics, Apr. 19, 1923, Washington, Government Printing Office, 1923, pp. 5, ill., tabl., diagrs.

--Report No. 163. The vertical, longitudinal, and lateral accelerations experienced by an S. E. 5A airplane while maneuvering, by F. H. Norton and T. Carroll.

National Advisory Committee for Aeronautics, July 9, 1923, Washington, Government Printing Office, 1923, pp. 5, ill., diagrs.

- Report No. 164. The inertia coefficients of an airship in a frictionless

fluid, by H. Bateman.

National Advisory Committee for Aeronautics, June 7, 1923, Washington, Government Printing Office, 1923, pp. 16, ill.

- Report No. 165. Diaphragms for aeronautic instruments by M. D.

Hersey.

National Advisory Committee for Aeronautics, July 27, 1923, Washington, Government Printing Office, 1923, pp. 32, ill.

- Report No. 166. The aerodynamic plane table, by A. F. Zahm, Aerodynamical Laboratory, Bureau of Construction and Repair, U. S. Navy.

National Advisory Committee for Aeronautics, Aug. 22, 1923, Washington, Government Printing Office, 1923, pp. 11, ill.

- Report No. 167. The measurement of the damping in roll on a JN-4h in

flight, by F. H. Norton.

National Advisory Committee for Aeronautics, May 29, 1923, Washington, Government Printing Office, 1923, pp. 6, ill., diagrs.

- Report No. 168. The general efficiency curve for air propellers, by

Walter S. Diehl.

National Advisory Committee for Aeronautics, June 18, 1923, Washington, Government Printing Office, 1923, pp. 11, tabls., diagrs.

National Advisory Committee for Aeronautics. Report No. 169. The effect of airfoil thickness and plan form on lateral control, by H. I. Hoot, Langley Memorial Aeronautical Laboratory.

National Advisory Committee for Aeronautics, Aug. 31, 1923, Washington, Government Printing Office, 1923, pp. 11, ill., tabls., diagrs.

- Report No. 170. A study of longitudinal dynamic stability in flight, by

F. H. Norton.

National Advisory Committee for Aeronautics, June 28, 1923, Washington, Government Printing Office, 1923, pp. 9, ill., diagrs.

- Report No. 171. Engine performance and the determination of absolute

ceiling, by Walter S. Diehl, Bureau of Aeronautics, Navy Department.

National Advisory Committee for Aeronautics, Sept. 14, 1923, Washington, Government Printing Office, 1923, pp. 12, tabls., diagrs.

- Report No. 172. Dynamic stability as affected by the longitudinal moment of inertia, by Edwin B. Wilson, Harvard University.

National Advisory Committee for Aeronautics, Oct. 1, 1923, Washington, Government Printing Office, 1923, pp. 8.

- Report No. 173. Reliable formulae for estimating airplane performance

and the effects of changes in weight, wing area, or power, by Walter S. Diehl.

National Advisory Committee for Aeronautics, Nov. 14, 1923, Washington, Government Printing Office, 1923, pp. 22, tahls., diagrs.

- Report No. 174. The small angular oscillations of airplanes in steady

flight, by F. H. Norton.

National Advisory Committee for Aeronautics, Jan. 4, 1924, Washington, Government Printing Office, 1923, pp. 8, ill., tabl., diagrs.

- Report No. 175. Analysis of W. F. Durand's and E. P. Lesley's propeller

tests, by Max M. Munk.

National Advisory Committee for Aeronautics, Dec. 10, 1923, Washington, Government Printing Office, 1923, pp. 14, diagrs.

- Report No. 176. A constant pressure bomb, by F. W. Stevens.

National Advisory Committee for Aeronautics, Feb.. 8, 1924, Washington, Government Printing Office, 1923, pp. 8, ill., tabl.

- Report No. 178. Relative efficiency of direct and geared drive propellers,

by Walter S. Diehl.

National Advisory Committee for Aeronautics, Jan. 11, 1924, Washington, Government Printing Office, 1923, pp. 9, tahls., diagrs.

- Report No. 179. The effect of electrode temperature on the sparking

voltage of short spark gaps, by F. B. Silsbee.

National Advisory Committee for Aeronautics, Jan. 30, 1924, Washington, Government Printing Office, 1923, pp. 10, ill., diagrs.

- Technical Notes No. 122. The determination of the angles of attack of

zero lift and of zero moment, based on Munk's integrals, by Max M. Munk.

National Advisory Committee for Aeronautics, Jan. 1923 (Mimeograph), Washington, pp. 9, diagrs.

- Technical Notes No. 123. An optical altitude indicator for night landing,

by John A. C. Warner, Bureau of Standards.

National Advisory Committee for Aeronautics, Jan. 1923 (Mimeograph), Washington, pp. 5, ill.

- Technical Notes No. 124. Downwash of airplane wings, by Max Munk

and Gunther Cario.

National Advisory Committee for Aeronautics, Jan. 1923 (Mimeograph), Washington, pp. 9, diagrs.

From Tecbniscbe Berichte, Vpl. 3, Pt. 1,

National Advisory Committee for Aeronautics. Technical Notes No. 125. Results of experimental flights at high altitides with Daimler, Benz, and Maybach engines to determine mixture formation and heat utilization of fuel, by K. Kutzbach.

National Advisory Committee for Aeronautics, Jan. 1923 (Mimeograph), Washington, pp. 11, diagrs. From Technische Berichte, Vol. 3, Pt. 1.

- Technical Notes No. 126. Absolute dimensions of Karman vortex motion,

by Werner Heisenberg.

National Advisory Committee for Aeronautics, Jan. 1923 (Mimeograph), Washington, pp. 10, diagrs. From Physikalische Zeitschrift, Sept. 15, 1922.

- Technical Notes No. 127. The air propeller, its strength and correct

shape, by H. Dietsius.

National Advisory Committee for Aeronautics, Feb. 1923 (Mimeograph), Washington, pp. 9, diagrs. From Technische Berichte, Vol. 3, No. 2.

- Technical Notes No. 128. Tests on an airplane model, AEG-D-I of

the Allgemeine Elektricitats Gesellschaft, A-G., airplane construction section conducted at the Göttingen model testing laboratory for aerodynamics, by Max Münk and Wilhelm Molthan.

National Advisory Committee for Aeronautics, Feb. 1923 (Mimeograph), Washington, pp. 4, tabls. From Technische Berichte, Vol. 3, Pt. 2.

- Technical Notes No. 129. Notes on aerodynamic forces on airship hulls,

by L. B. Tuckerman, Engineer Physicist, Bureau of Standards.

National Advisory Committee for Aeronautics, Mar. 1923 (Mimeograph), Washington, pp. 27, diagrs..

-- Technical Notes No. 130. Model supports and their effect on the results

of wind-tunnel tests, by David L. Bacon, Langley Memorial Aeronautical Laboratory.

National Advisory Committee for Aeronautics, Feb. 1923 (Mimeograph), Washington, pp. 7, tabls., diagrs.

- Technical Notes No. 131. Variation in the number of revolutions of air

propellers, by W. Achenbach.

National Advisory Committee for Aeronautics, Mar. 1923 (Mimeograph), Washington, PP. 7.

From Technische Berichte, Vol. 3, Pt. 2.

- Technical Notes No. 132. The increase in dimensions of airplanes weight,

area, and loading of wings, by E. Everling.

National Advisory Committee for Aeronautics, Mar. 1923 (Mimeograph), Washington, pp. 27, tabls., diagrs. From Technische Berichte, Vol. 3, Part 2.

- Technical Notes No. 133. Disturbing effect of free hydrogen on fuel

combustion in internal-combustion engines, by A. Rieder.

National Advisory Committee for Aeronautics, Mar. 1923 (Mimeograph), Washington, pp. 5.

From Technische Berichte, Vol. 3, Pt. 2.

- Technical Notes No. 134. Standardization and aerodynamics, by William

Knight, Prof. L. Prandtl, Göttingen, Prof, von Karman, Aachen, Col. Ing. G. Costänzi, Rome, W. Margoulis, Paris, Lieut. Col. Ing. R. Verduzio, Rome, Dr. Ing. Richard Katzmayr, Vienna, E. B. Wolff, Amsterdam, Dr. A. F. Zahm.

National Advisory Committee for Aeronautics, Mar. 1923 (Mimeograph), Washington, pp. 98.

From Aerial Age, June 20, and Oct. 3, 1921, Jan. 2, Feb. 20, Mar. 6, Apr. 3, May 8, June 19, Sept. and Dec. 1922.

National Advisory Committee for Aeronautics. Technical Notes No. 135. Measuring an airplane's true speed in flight testing, by W. G. Brown.

National Advisory Committee for Aeronautics, Apr. 1923 (Mimeograph), Washington, pp. 10, ill.

- Technical Notes No. 136. Is there any available source of heat energy

lighter than gasoline? by P. Meyer.

National Advisory Committee for Aeronautics, Apr. 1923 (Mimeograph), Washington, pp. 6.

From Technische Berichte, Vol. 3, No. 3.

- Technical Notes No. 137. Experiments with fabrics for covering airplane

wings, by A. Pröll.

National Advisory Committee for Aeronautics, Apr. 1923 (Mimeograph), Washington, pp. 37, tahls., diagrs. From Technische Berichte, Vol. 3, No. 3, 1918.

- Technical Notes No. 138. Determination of the value of wood for structural purposes. Communication from the Material Testing Laboratory of the Royal Technical High School at Stuttgart, by Richard Baumann.

National Advisory Committee for Aeronautics, Apr. 1923 (Mimeograph), Washington, pp. 10, ill., tabls. From Technische Berichte, Vol. 3, No. 4.

- Technical Notes No. 139. Influence of ribs on strength of spars, by

L. Ballenstedt.

National Advisory Committee for Aeronautics, May 1923 (Mimeograph), Washington, pp. 18, tahls., diagrs. From Technische Berichte, Vol. 3, No. 4.

-- Technical Notes No. 140. General theory of stresses in rigid airship,

ZR-1, by W. Watters Pagon, member special committee on Airship ZR-1, National Advisory Committee for Aeronautics.

National Advisory Committee for Aeronautics, May 1923 (Mimeograph), Washington, pp. 43, diagrs.

- Technical Notes No. 141. Experiments with a built-in or fuselage radiator, by C. Wieselsberger.

National Advisory Committee for Aeronautics, May 1923 (Mimeograph), Washington, pp. 12, tabls., diagrs. From Technische Berichte, Vol. 3, Part 4.

- Technical Notes 142. Adaptation of aeronautical engines to high-altitude flying, by K. Kutzbach.

National Advisory Committee for Aeronautics, May 1923 (Mimeograph), Washington, pp. 30, ill.

- Technical Notes No. 143. Calculations for a single-strut biplane with

reference to the tensions in the wing bracing, by 0. Blumenthal.

National Advisory Committee for Aeronautics, June 1923 (Mimeograph), Washington, pp. 28, tabls., diagrs. From Technische Berichte, Vol. 3, No. 5.

- Technical Notes No, 144. Notes on the design of ailerons, by W. S.

Diehl, Bureau of Aeronautics, United States Navy.

National Advisory Committee for Aeronautics, June 1923 (Mimeograph), Washington, pp. 10, tabls., diagrs.

- Technical Notes No. 145. Aeronautical instruments, by Kurt Bennewitz.

National Advisory Committee for Aeronautics, June 1923 (Mimeograph), Washington, pp. 13, ill.

From Technische Berichte, Vol. 3, No. 5.

- Technical Notes No. 146. The fairing of airfoil contours, by Edward P.

Warner, professor of aeronautics, Massachusetts. Institute of Technology.

National Advisory Committee for Aeronautics, June 1923 (Mimeograph), Washington, pp. 7, diagrs,

National Advisory Committee for Aeronautics. Technical Notes No. 147. Speed measurements made by Division A of the airplane directorate (Flug-zeugmeisterei), subdivision for flight experiments, by V. Heidelberg and A. Holzel.

National Advisory Committee for Aeronautics, July 1923 (Mimeograph), Washington, pp. 11, tabls., diagrs. From Technische Berichte, Vol. 3, No. 5 (1918).

- Technical Notes No. 148. The flexible mounting of an airplane engine,

by K. Kutzbach.

National Advisory Committee for Aeronautics, July 1923 (Mimeograph), Washington, pp. 6.

- Technical Notes No. 149. Influences in the selection of a cycle for small

high-speed engines running on solid or airless injection with compression ignition, by Robertson Matthews, Langley Memorial Aeronautical Laboratory.

National Advisory Committee for Aeronautics, July 1923 (Mimeograph), Washington, pp. 11, tabls., diagrs.

- Technical Notes No. 150. Notes on the N. A. C. A. control force recorder,

by H. J. E. Reid, Langley Memorial Aeronautical Laboratory.

National Advisory Committee for Aeronautics, July 1923 (Mimeograph), Washington, pp. 4, ill.

- Technical Notes No. 151. Tests on built-up airplane struts having initial

tension in outside fibers, by T. A. Schwamb and C. S. Smith. Abstracted by John C. Lee.

National Advisory Committee for Aeronautics, Aug. 1923 (Mimeograph), Washington, pp. 6, ills.1, diagrs.

- Technical Notes No. 152. Thrust and power required in climbing, by

Georg Koenig.

National Advisory Committee for Aeronautics, Aug. 1923 (Mimeograph), Washington, pp. 19, tabls., diagrs. From Technische Berichte, Vol. 3, No. 5.

—— Technical Notes No. 153. Flight characteristics, by Captain Student.

National Advisory Committee for Aeronautics, Aug. 1923 (Mimeograph), Washington, pp. 8. From Technische Berichte, Vol. 3, No. 6.

- Technical Notes No. 154. An instrument for recording the position of

airplane control surfaces, by K. M. Ronan.

National Advisory Committee for Aeronautics, Aug. 1923 (Mimeograph), Washington, pp.

4, ill.

- Technical Notes No. 155. Regulations governing the issuance of certificates of airworthiness of aircraft in France.

National Advisory Committee for Aeronautics, Aug. 1923 (Mimeograph), Washington, pp. 46.

From Bulletin de la Navigation Aérienne, Mar. 1923.

- Technical Notes No. 156. The National Advisory Committee for Aeronautics recording tachometer and angle of attack recorder, by H. J. E. Reid, Langley Memorial Aeronautical Laboratory.

National Advisory Committee for Aeronautics, Aug. 1923 (Mimeograph), Washington, pp. 3, ill.

- Technical Notes No. 157. An impulse electric motor for driving recording

instruments, by W. F. Joachim, Langley Memorial Aeronautical Laboratory.

National Advisory Committee for Aeronautics, Sept. 1923 (Mimeograph), Washington, pp. 13, tabls., ills., diagrs. Taken from Journal of the Franklin Institute Aug. 1923.

- Technical Notes No. 158. Analysis of Doctor Schaffran's propeller model

tests, by Max M. Münk.

National Advisory Committee for Aeronautics, Sept. 1923 (Mimeograph), Washington, pp.

5, ills., tabls., diagrs.

National Advisory Committee for Aeronautics. Technical Notes No. 159. The time lag and interval of discharge with a spring-actuated fuel-injection pump, by Robertson Matthews and A. W. Gardiner, Langley Memorial Aeronautical Laboratory.

National Advisory Committee for Aeronautics, Sept. 1923 (Mimeograph), Washington, pp

8, tabls., diagrs.

- Technical Notes No. 160. Fittings and other structural parts of airplanes, by P. Eydam.

National Advisory Committee for Aeronautics, Oct. 1923 (Mimeograph), Washington, pp. 12, ill.

From Technische Berichte, Vol. 3, No. 6.

- Technical Notes No. 161. Preliminary study of the damping factor in

roll, by Lieut. James M. Shoemaker, United States Navy, and John G. Lee, Massachusetts Institute of Technology.

National Advisory Committee for Aeronautics, Oct. 1923 (Mimeograph), Washington, pp. 17, ills., diagrs.

- Technical Notes No. 162. The arithmetic of distribution in multi-cylinder engines, by Stanwood W. Sparrow, Bureau of Standards.

National Advisory Committee for Aeronautics, Oct. 1923 (Mimeograph), Washington, pp.

9, tabls., diagrs.

- Technical Notes No. 163. Graphic method for calculating the speed and

climbing ability of airplanes, by Adolf Rohrbach and Edwin Lupberger, Zeppelin Works, Staaken, near Spandau.

National Advisory Committee for Aeronautics, Oct. 1923 (Mimeograph), Washington, pp. 9, diagrs.

From Technische Berichte, Vol. Ill, No. 6.

- Technical Notes No. 164. General theory of windmills, by Max M. Münk.

National Advisory Committee for Aeronautics, Oct. 1923 (Mimeograph), Washington, pp. 5, diagrs.

- Technical Notes No. 165. Tests on riveted joints in sheet duralumin, by

H. F. Rettew and G. Thumin, Massachusetts Institute of Technology. Abstracted and revised by J. G. Lee.

National Advisory Committee for Aeronautics, Nov. 1923 (Mimeograph), Washington, pp. 5, diagrs.

- Technical Notes No. 166. Determination of climbing ability, by H.

Blasius.

National Advisory Committee for Aeronautics, Nov. 1923 (Mimeograph), Washington, pp. 16, diagrs.

- Technical Notes No. 167. Wind-tunnel tests of five strut sections in yaw,

by Edward P. Warner, professor of aeronautics, Massachusetts Institute of Technology.

National Advisory Committee for Aeronautics, Nov. 1923 (Mimeograph), Washington, pp. 7, diagrs.

- Technical Notes No. 168. Experiments with fabrics for covering airplane

wings to determine effect of method of installation, by A. Pröll.

National Advisory Committee for Aeronautics, Dec. 1923 (Mimeograph), Washington, pp. 39, tahls., diagrs.

-—- Technical Notes No. 169. Air resistance measurements on actual airplane parts, by C. Wieselsberger.

National Advisory Committee for Aeronautics, Nov. 1923 (Mimeograph), Washington, pp. 11, tabls., diagrs.

——■ Technical Notes No. 170. Reduction in efficiency of propellers due to slip stream, by Max M. Münk.

National Advisory Committee for Aeronautics, Dec, 1923 (Mimeograph), Washington, pp.6. From Technische Berichte, Vol. III, No. 7.

National Advisory Committee for Aeronautics. Technical Notes No. 171. Compression strength of tapered airplane struts, by Viktor Lewe.

National Advisory Committee for Aeronautics, Dec. 1923 (Mimeograph), Washington, pp. 7, diagrs.

- Technical Notes No. 172. The Nichols wing cutting equipment, by

James B. Ford, Massachusetts Institute of Technology.

National Advisory Committee for Aeronautics, Dec. 1923 (Mimeograph), Washington, pp. 6, ill.

- See Carroll, Thomas: The practical importance of the free flight work of

the National Advisory Committee for Aeronautics.

- See Mail: National Advisory Committee for Aeronautics recommendations for the air mail service.

- See Norton, F. H.: Flight work now being carried on by the National

Advisory Committee for Aeronautics at Langley Field.

- See Orcy, Ladislas d': The new nomenclature for aeronautics. Some

critical remarks on report 157 of the National Advisory Committee for Aeronautics.

- See Seymour, L. D.: Regarding the new National Advisory Committee

for Aeronautics nomenclature.

National Aeronautical Association. National Aeronautical Association annual banquet a great success.

Aviation, Vol. 15, No. 17 (Oct. 22, 1923), New York, pp. 508-520, ill.

- The National Aeronautic Association's policy.

Aviation, Vol. 14, No. 21 (May 21, 1923), New York, pp. 553-555, ill.

National airway system. Organizing the national airway system.

Aviation, Vol. 15, No. 2 (July 9, 1923), New York, pp. 41-43, ill., map.

National balloon race. Army team wins national balloon race. Aviation, Vol. 15, No. 5 (July 30, 1923), New York, pp. 121-123.

- Results of the national balloon race.

Aviation, Vol. 15, No. 3 (July 16, 1923), New York, p. 71.

National Physical Laboratory. The annual inspection of the National Physical Laboratory.

Flight, Vol. 15, No. 27 (July 5, 1923), London, p. 371, diagr.

- The work of the National Physical Laboratory wind tunnels.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 9 (Feb. 28, 1923), London, pp. 156-158.

- See Cowley, W. L.: Wind-tunnel work at the National Physical Laboratory.

Naval aeronautics. Aircraft and the Navy.

Flight, Vol. 15, No. 41 (Oct. 11, 1923), London, p. 630.

- Aircraft v. battleship.

Flight, Vol. 15, No 52 (Dec. 27, 1923), London, p. 776.

- Bombing the battleships; Virginia to Maine flight.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 250, 284, ill.

- The Navy spotting plane.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 31-32, ill.

- On the great agreement.

The Aeroplane, Vol. 25, No. 6 (Aug. 8, 1923), London, pp. 145-148.

- On the why not of a naval air service.

The Aeroplane, Vol. 25, No. 7 (Aug. 15, 1923), London, pp. 173-178,

Naval aeronautics. See Bombing: United States aerial bombing tests on battleships.

- See Coontz, Robert E.: The wings of the fleet.

- See Den by, Edwin: Fleet aviation.

—:— See Gleaves, A.: Has sea power passed?

- See McNamee, L.: Aviation and the Navy.

- See Overstreet, L. M.: Naval strategy as affected by aircraft and battleships.

Naval Air Service. See Moffett, William A.: The United States Naval Air Service.

Navigation. See Airways: Airways and landing facilities.

- See Alayrac: La navigation et le rayon d'action.

- See Constantin, Louis: Une nouvelle méthode simple de navigation

aérienne à l'estime.

- See Felton, Samuel M.: Uses to be made of the highways of the air.

- See Italy: Italian air routes.

- See M. L. : Le developpment de notre réseau aérien.

- See Lecointe: La méthode de navigatiou de l'Admirai Gago Coutinho.

- See Rowe, A. P.: Aerial navigation.

- See Sextant: The sextant and air navigation.

- See Werenskiold, W. : Mean monthly air transport over the north Pacific

Ocean.

- See Wimperis, H. E.: Navigation equipment for long-distance flights.

Navy Department. See United States Bureau of Aeronautics.

Navy-Wright. The Navy-Wright racer for the Schneider cup. Aviation, Vol. 15, No. 13 (Sept. 24, 1923), New York, p. 365, ill.

- Navy-Wright racing plane is built around 700-horsepower engine.

Automotive Industries, Vol. 49, No. 14 (Oct. 4, 1923), New York, pp. 687-689, ill.

Nayler, J. L., and R. Jones. The stability of airships: General case. The mathematical theory and its application.

Advisory Committee for Aeronautics, Reports and Memoranda, No. 602 (Nov.1918), London, 1923, pp. 16, diagr.

Nayler, J. L., and W. L. Le Page. Tandem aerofoils.

Aeronautical Research Committee, Reports and Memoranda, No. 804 (Ac 57) (Mar. 1922), London, 1922, p. 12, tabls., diagrs.

Neal, Eric, et Sadi Lecointe. Le lexique aéronautique par Eric Neal et Sadi Lecointe. Annuaire et revue des revues de l'aviation. Paris, 1923, Tome 1, pp. 192, ill., Tome 2, pp. 344, ill.

Nelles, Douglas H. Application of aerial photograph to map making. Canadian Engineer, Vol. 44, No. 11 (Mar. 13, 1923), Toronto, pp. 309-315, ill.

Neslen, C. C. Salt Lake City: Transcontinental air depot.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, p. 318.

Netherlands. Niederländische Bestimmungen über die Benutzung von Flughäfen für deu Zivilluftverkehr durch Zivilluftfahrzeuge.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 39-10 (30 Sept.-7 Okt. 1923), Berlin, pp. 401-402, 410-412.

Neville, Wendell C. The flying marines.

U. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 17-18.

New YoBK-Newport. New York-Newport air fleet formed.

TJ. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, p. 30. *

Newell, J. S., and A. S. Niles. Comparison of column formulas.

TJ. S. Air Service Information Circular, Vol. 4, No. 395 (Feb. 15, 1923), Washington, Government Printing Office, pp. 4, ill.

Newell, J. S. The distribution of load among the spars in multi-spar construction of airplane wings.

U. S. Air Service Information Circular, Vol. 4, No. 394 (Feb. 15,1923), Washington, Government Printing Office, pp. 10, ill.

Newspaper delivery. Aerial newspaper delivery service in Florida. Aviation, Vol. 14, No. 16 (Apr. 16, 1923), New York, p. 423, ill.

Nichols. See Ford, James B.: The Nichols wing-cutting equipment.

Niedner, J. Die wichtigsten Prüfmethoden, Ballonstoffe auf Gasdurchlässigkeit zu untersuchen und der Vergleich der mit ihnen gesonnenen Resultate. Zeitschr. Flugt. Motorluftscb., Bd. 13, No. 12 (June 30, 1923), Berlin, pp. 172-176, ill.

Night flying. Developing equipment for night flying.

Aviation, Vol. 14, No. 22 (May 28, 1923), New York, pp. 578-581, ill.

- Improved equipment for night flying.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, pp. 130-131, ill.

- Night flying.

Aviation, Vol. 14, No. 16 (Apr. 16, 1923), New York, p. 427.

- Night-flying experiments.

Flight, Vol. 15, No. 31 (Aug. 2, 1923), London, p. 461.

- See Bassett, P. R.: Night flying.

- See Black, Archibald: Night-flying equipment.

—■— See Patterson, M. L.: Night-flying progress.

-■ See Sperry, Elmer A.: The high intensity light in night aviation.

Night landing. See Warner, John A. C.: An optical altitude indicator for night landing.

Niles, A. S. Design of internally braced biplane wings.

TJ. S. Air Service Information Circular, Vol. 5, No. 440 (May 1, 1923), Washington, Government Printing Office, pp. 31, ill.

- See Newell, J. S., and A. S. Niles: Comparison of column formulas.

1922. The review of the year. [1922]

Tbe Aeroplane, Vol. 24, Nos. 2-5, 12 (Jan. 10-31, Mar. 21, 1923), London, pp. 24, 34, 54, 60, 74-76, 222-223.

1923. 1923.

Flight, Vol. 15, No. 52 (Dec. 27, 1923), London, pp. 773-776.

- See Warner, Edward P.: Commercial aviation in 1923.

1923-24. Flying in 1923-24.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, pp. 341, 379, ill.

Nisi, Hirata. See Hirata Nisi and Alfred W. Porter: On eddies in air.

Nistri. The Nistri aerial camera.

Aviation, Vol. 14, No. 15 (Apr. 9, 1923), New York, p. 403, ill.

Nixon, H. L. See Batson, A. S., and H. L. Nixon: Pressure distribution over the wings of, and force measurements on, a model BE-2C biplane with raked wing tips,

Nobile, Umberto. Prove di ormeggio funicolare per dirigibili.

Comm. Aeron. Eertd. Teen., Anno 11, N. 3 (15 Ott. 1923), Eoma, 1923, pp. 11-19, 111.

- Recent progress in airship construction in Italy.

International Air Congress, London, 1923, Eeport, London, 1923, pp. 917-940, ill., dlagrs.

- Sugli ultimi progress! realizzati in Italia nella tecnica costruttiva dei

dirigibili.

Qiornale del Genio Civile, Vol. 61, No. 5 (may 31, 1923), pp. 317-330, ill.

Nomenclature. Nomenclature for aeronautics.

National Advisory Committee (or Aeronautics, Eeport No. 157, Feb. 19, 1923, Washington, Government Printing Office, 1923, p. 59, ill.

- See Black, Archibald, and Donald R. Black: Proposed landing field

nomenclature.

- See British Engineering Standards Association : British standard glossary

of aeronautical terms.

- See Orcy, Ladislas d': The new nomenclature for aeronautics. Some

critical remarks on report 157 of the National Advisory Committee for Aeronautics.

- See Seymour, L. D. : Regarding the new N. A. C. A. nomenclature.

Noordtjtn, R. B. C. Great aerial activity in Holland.

TJ. S. Air Service, Vol. 8, No. 10 (Oct. 1923), Washington, pp. 26-28, ill.

- New Fokker transport airplane.

U. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, pp. 25-26, ill.

Norbeth, John H. See Eyncourt, Eustice d', and John H. Norbeth: A proposed aircraft-carrying mail steamer.

Nordman. The Nordman sail plane.

Aerial Age, Vol. 16, No. 7 (July 1923), New York, p. 344, ill.

Nordmann, Charles. Sur le mécanisme du vol à voile et la morphologie des oiseaux voiliers.

C. E. Acad. Sel., T. 177, No. 8 (Aug. 20, 1923), Paris, pp. 446-448.

North, John D. The case for metal construction.

Journ. Eoy. Aer. Soc, Vol. 27, No. 145 (Jan. 1923), London, pp. 3-25.

- The technical development of the aeroplane.

Flight, Vol. 15, No. 37 (Sept. 13,1923), London, pp. 545-546.

Aviation, Vol. 15, No. 23 (Dec. 3,1923), New York, pp. 676-678.

International Air Congress, London, 1923, Eeport, London, 1923, pp. 177-195, tabls.

North Pole. See Ekholm, Nils, och G. V. E. Svedenborg: S. A. Andres ballon-färd mot nordpolen 11/7 1897.

- See McConnell, B. M.: What Amundsen would face in a flight to the

North Pole.

- See Polar flight.

Norton, Frederick Harwood, and W. G. Brown. Complete study of the longitudinal oscillation of a VE-7 airplane.

National Advisory Committee lor Aeronautics, Eeport No. 162, Apr. 19, 1923, Washington, Government Printing Office, 1923, pp. 5, ill., tab!., diagrs.

Norton, Frederick Harwood. Flight work now being carried on by the National Advisory Committee for Aeronautics at Langley Field.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 84-85,148-149, 111.

■—— The measurement of the damping in roll on a JN-4h in flight.

National Advisory Committee (or Aeronautics, Eeport No. 167, May 29, 1923, Washington Government Printing Office, 1923, pp. 6, 111., diagrs.

Norton, Frederick Harwood. The small angular oscillations of airplanes in steady flight.

National Advisory Committee for Aeronautics, Report No. 174, Jan. 4, 1924, Washington, Government Printing Office, 1923, pp. 8, ill., tabls., diagrs.

- A study of longitudinal dynamic stability in flight.

National Advisory Committee for Aeronautics, Report No. 170, June 28, 1923, Washington, Government Printing Office, 1923, pp. fi, ill., diagrs.

Norton, Frederick Harwood, and T. Carroll. The vertical, longitudinal, and lateral accelerations experienced by an SE-5A airplane while maneuvering.

National Advisory Committee for Aeronautics, Report No. 163, July 9, 1923, Washington, Government Printing Office, 1923, pp. 5, ill., diagrs.

Notiziario di Aeronautica. Commissariato dell'Aeronautica, Intendenza Generale, Direzione Superiore del Genio e delle Costruzione. Notiziario di Aeronautica, N. 1 Lugio-N. 6 Dicembre 1923.

Roma, Tipografia della R. Accademia Nazionale dei Lincei, 1923.

Reprints and abstracts of articles that have appeared in aeronautical publications elsewhere.

o

O'Mallet, Frank Ward. When the Wrights joined the flying shows. U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, pp. 19-26, ill.

(Emichen. See I. T. : Succès des essais de l'hélicoptère Śmichen.

OEHMiCHEN-Peugeot. The Oehmichen-Peugeot helicopter. Aviation, Vol. 14, No. 16 (Apr. 9, 1923), New York, p. 399.

Offermann, E. Seilstart motorloser Flugzeuge und Fesselflug.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 17-22 (Nov. 21, 1923), Berlin, pp. 167-169.

Ogilvie, Alec. Gliders.

The Aeroplane, Vol. 24, No. 7 (Feb. 14, 1923), London, pp. 120-122.

- Gliders and light planes.

Journ. Roy. Aer. Soc, Vol. 27, No. 166 (Nov. 1923), London, pp. 624-634.

- Gliders and their value to aeronautical progress.

Flight, Vol. 16, No. 8 (Feb. 22, 1923), London, pp. 104-106.

Oldys, Robert. Formal dedication of the Boston airport.

TJ. S. Air Service, Vol. 8, No. 10 (Oct. 1923), Washington, p. 22.

Olmeda, Fernando Bertozzi. Caratteristiche aerodinamiche di modelli d'ala.

Comm. Aeron. Rend. Teen, Anno 11, N. 3 (15 Ott. 1923), Roma, 1923, pp. 53-178, ill., tahls., diagrs.

Olmstead, Robert S. The international balloon race.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, pp. 319-320.

Orain, F. Construction des aéroplanes. Résistance des matériaux. Monoplans. Biplans. Multiplans. Les aéroplanes de 1910-1922. Paris, pp. 78, ill.

Orcy, Ladislas d'. Foreign air armaments and the United States. Aviation, Vol. 15, No. 3 (July 16,1923), New York, pp. 66-70.

- Foreign air transport by seaplane.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, pp. 122-125, ill.

- German air activities and Latin America.

Aviation, Vol. 14, No. 15 (Apr. 9, 1923), New York, pp. 394-395.

- Low-powered airplanes and gliding experiments.

Aviation, Vol. 14, No. 24 (June 11, 1923), New York, pp. 640-642, Ul.

Oect, Ladislas d'. The new nomenclature for aeronautics. Some critical remarks on report 157 of the National Advisory Committee for Aeronautics. Aviation, Vol. 14, No. 16 (Apr. 16, 1923), New York, pp. 418-419.

- The passing of a great aeronautical pioneer.

Aviation, Vol. 14, No. 22 (May 28, 1923), New York, pp. 684-685, ill.

- Some marginal remarks on air transport.

Aviation, Vol. 14, No. 19 (May 7, 1923), New York, pp. 499-500.

Ore. See Muffling, Adrian van: Transporting ore by airplane.

Ornithopters. See Reiffenstein, Manfred: Ueber neue Versuche mit Schwingenfliegern.

Orton, A. The Diesel engine; an introductory treatment of the principles of working, construction, and operation of Diesel engines, for students, mechanics, and others.

Pitman's technical primers London, Sir I. Pitman and Sons, Ltd., 1923, pp. x, 111.

Osborn, Earl D. Cost accounting in aerial transportation.

Aviation, Vol. 15, No. 21 (Nov. 19, 1923), New York, pp. 628-630.

Osman, W. H. Message carrying by pigeons from aircraft.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, pp. 347-349, 375, ill.

Osterland, Erich. See Haffner, Camillo, und Erich Osterland: Handbuch für Flugzeug-Konstrukteure.

Otte, R. Neue Fortschritte im Flugzeugbau.

Zeitschr. Flugt. Motorluftseh., Bd. 14, No. 13-14 (Juli 26, 1923), pp. 104-106, ill.

Overstreet, L. M. Naval strategy as affected by aircraft and battleships. Outlook, Vol: 133 (Jan. 17, 1923), New York, pp. 130-133, ill., diagr.

Ower, E. See Reif, E. F., T. Lavender, and E. Ower: The determination of rotary derivatives.

- See Reif, E. F., and E. Ower: Experiments on complete models of six

aeroplanes.

- See Reif, E. F., and E. Ower: Lift, drag, and pitching moment of the

fifth scale Bristol fighter model in the Duplex wind tunnel.

- See Simmons, L. F. G., and E. Ower: Elimination of the static pressure

gradient along wind tunnels of the N. P. L. type.

Oxygen. See Beach, B. S.: Oxygen booster will aid in new altitude flight.

P

P., E. See E. P.: La réception à la Sorbonne des aviateurs Portugais Gago Coutinho et Sacadura Cabrai (31 mai 1923).

P., J. See J. P.: Le naufrage du "Dixmude."

P. M. Les obsèques du Commandant Destrem.

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, pp. 344-345.

Packard. See Engines: Comparative mathematical analysis of the stresses occurring in the cam-shaft drive gears of the Liberty 12 and the Packard 2025 engines.

- See Vincent, J. G.: Packard model 1551 300-horsepower airship engine.

Packard, Vernon W. Organized reserves one of country's greatest assets. U. S. Air Service, Vol. 8, No. 2 (Feh. 1923), Washington, p. 21.

Page, Frederick Handlet. Air transport.

Journal of the Institute of Transport, Vol. 4, No. 4 (Feb. 1923), London, pp. 126-139, ill.

Page, Frederick Hanuley, and W. P. Savage. The development of commercial aviation.

Flight, Vol. 15, No. 37 (Sapt. 13, 1923), London, pp. 546-547.

International Air Congress, London, 1923, Beport, London, 1923, pp. 689-700.

Page, Freuerick Handley. The slotted wing.

Flight, Vol. 15, No. 28 (July 12, 1923), London, pp. 388-389, diagr.

— Slotted wings.

International Air Congress, London, 1923, Report, London, 1923, pp. 68-97, ill., tabls.

- See International Air Congress: International Air Congress.

Pagon, W. Watters. General theory of stresses in rigid airship, ZR-1.

National Advisory Committee for Aeronautics, Technical Notes No. 140, (May 1923), Washington, pp. 43, diagrs.

Painleve, Paul; Emile Burel et Ch. Maurain. L'aviation.

Paris, Felix Alcan, 1923, pp. viii, 308. Nouvelle collection scientifique. Nouvelle édition, revue et augmentée.

Palmer, Thomas F. A technical dictionary in Eoglish, Spanish, and Portuguese.

London, E. Marlborough & Co. (Ltd.), 1923, p. 73.

Pannell, J. R., R. A. Frazer, and H. Bateman. Experiments on rigid airship R-32. Part I: Pressures on the upper fin and rudder.

Aeronautical Research Committee Reports and Memoranda, No. 811 (Aa. 62) (Feb. 1921), London, 1923, p. 30, tabls., diagrs.

- Experiments on rigid airship R-32. Part II: Controllability and turning trials.

Aeronautical Research Committee Reports and Memoranda, No. 812 (Ae. 63) (Apr. 1921), London, 1923, p. 19, tabls., diagrs.

- Experiments on rigid airship R-32. Part III: Measurements of resistance and airspeed.

Aeronautical Research Committee Reports and Memoranda, No. 813 (Ae. 64) (June 1921), London, 1923, p. 24, tabls., diagrs.

Pappafava, Vladimiro. Les contrats aériens. Du moment et du lieu où l'on doit considérer comme conclu un contrat entre deux parties, l'une en avion et l'autre à terre.

Ravue Juridiqua Internationale de la Locomotion Aérienna (juil. 1923), Paris, pp. 305-309.

Parachutes. See Collin, Denyse: Les impressions d'une parachutiste.

- See Philippe, J. : Le concours de parachutes.

- See Philippe, J. : Le second concours de parachutes.

Paragon. The Paragon adjustable and reversible propeller. Change from full speed ahead to reverse made in 3 secoDds.

Aviation, Vol. 14, No. 1 (Jan. 1, 1923), Naw York, p. 19, ill.

Paris. Aerooautical eDgines at the Paris exposition.

Aviation, Vol. 14, No. 5 (Jan. 29, 1923), New York, pp. 132-133, ill.

- New aircraft at the Paris aero exposition.

Aviation, Vol. 14, Nos. 6-7 (Fab. 5-12, 1923), New York, pp. 156-160, 190-191.

- The Paris aero show, 1922.

Flight, Vol. 15, Nos. 1-5 (Jan. 4-Fab. 1,1923), London, pp. 3-8, 17-22, 29-33, 45-50, 60-65, ill.

- See Jamin, Raymond: Impressions of the Paris aero exposition.

Parkes, Oscar. See By water, Hector, Maurice Prendergast, and Oscar Parkes: A vision of terror. A concept of future war by sea and air.

Pbona. The Pegna "Rondine" light monoplane; 400 cubic centimeter A. B. C. engine.

Flight, Vol. 15, No. 52 (Dec. 27, 1923), London, pp. 779-780, ill.

Peqna-Bonmartini. An Italian light aeroplane.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 2 (July 11, 1923), London, p. 54, ill.

Pellizzari, Luis Roque. Estudio técnico-comercial del avion.

Ingenieria, Vol. 27, No. 8 (Aug. 1923), Buenos Aires, pp. 356-362, ill.

Pendulum. See Vetschinkin, V. P., and N. G. Tchentsoff: Plane pendulum with two degrees of freedom, applied for determination of the height of the center of gravity and of the moment of inertia of a solid.

Perkins, Albert T. St. Louis.

Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, pp. 77-78.

Perrin, Jean. L'Exterritorialité en matière de locomotion aérienne.

Revue Juridique Internationale de la Locomotion Aérienne (fév. 1923), Paris, pp. 49-75.

Peru. Aviation in Peru.

The Aeroplane, Vol. 25, No. 9 (Aug. 29, 1923), London, pp. 230, 242, ill.

Pershino, John J. Military aviation.

Aeronautical Digest, Vol. 2, No. 2 (Feh. 1923), New York, pp. 71,145.

Pescara. Pescara détenteur du record de durée hélicoptère.

L'Aérophile, 31e armée, Nos. 23-24 (ler-15 déc. 1923), Paris, p. 359.

Peterson, C. G. Immediate possibilities of commercial airplane service.

Journ. Soc. Autom. Eng., Vol. 12, No. 3 (Mar. 1923), New York, pp. 263-264.

Petit Parisien. The "Petit Parisien" prize for light aeroplanes.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 4 (July 25, 1923), London, pp. 102-104.

Peyriller, Edouard. Aviateurs contemporains. Le Colonel de Goys.

L'Aérophile, 31e armée, Nos. 9-10 (ler-15 mai 1923), Paris, pp. 129-130, port.

- Congrès des sociétés affiliées à l'Aéro-Club de France.

L'Aérophile, 31e année, Nos. 1-2 (ler-15 jan. 1923), Paris, pp. 20-23.

- Le Xlle grand prix de l'Aéro-Club de France.

L'Aérophile, 31e année, Nos. 11-12 (ler-15 juin 1923), Paris, pp. 163-169, ill. Reconstitution de la première ascension de Charles et Robert.

- See Sudre, et E. Peyriller: Réperttoire de l'aéronautique et des transports

aériens.

Philippe, J. Le concours de parachutes.

L'Aérophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 198-200, ill.

- Le second concours de parachutes (Voir le compte-rendu du premier dans

l'Aérophile de juillet 1923).

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, pp. 330-332, ill.

Philippine Islands. »See Jones, B. Q.: Flying in the Philippine Islands. Phillips, Stanley. Postage stamps of the air mails.

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, pp. 154-156, ill.

Phillips, Thomas R. Dome phases of the effect of aircraft on the future mission, organization, equipment, and tactics of the Coast Artillery Corps. Coast Artillery Journal, Vol. 58, No. 3 (Mar. 1923), Fort Monroe, Va., pp. 203-224.

Photogrammbtry. »See Antilli, C. : Lo stato attuale degli studi sulla fotogrammetria aerea.

- »See Cassinis, G. : Il rilevamento topografico dagli aerei.

- »See Clementi, A.: Sui metodi di fototopografia aerea.

Photoqrammetry. See Dacy, George H.: Mapping from the skies.

- See Dolezal, E. : Internationales Archiv für Photogrammetrie.

- See Gordon, J. W.: Generalized linear perspective: Treated with special

reference to photographic land surveying and military reconnaissance.

- See Gruber, O. v.: Die Perspektiven und optischen Verhältnisse bei der

Entzerrung von Fliegerbildern.

- See Gruber, O. v. : Der Stereoplanigraph der Firma Carl Zeiss, Jena.

- See Gruber, 0. v.: Der v. Orel-Zeissische Stereo-Autograph, Modell 1914,

mit Zusatz-Vorrichtung für Ausarbeitung von Luftaufnahmen.

- See Hugershoff, H.: Autokartograph und Dopperprojektor.

- See Lacmann, Otto: Das photogrammetrische Vermessungverfahren der

Internationalen aerogeodätischen Gesellschaft.

- See MacLeod, M. N. : Recent developments of air photography. 1. The

adjustment of air photographs to surveying points. 2. The mapping of large areas of unsurveyed country. B. Melvill Jones and J. C. Griffiths.

- See Nelles, Douglas H.: Application of aerial photograph to map making.

- See Map making: Map making from air photographs.

- See Poivilliers, C: Sur un nouveau Stéréo-autographe.

- See Roussilhe, H.: Résultats obtenus en 1921 et 1922 par l'application de

la photographie aérienne aux levés de précision & grande échelle.

Photography. Aerial pictures in telephone study.

Telephony, Vol. 85, No. 8 (Aug. 25, 1923), Chicago, pp. 14-16, ill.

- See Adams, Haddon C: Aerial photography in highway building.

- See Desha, Jack D. : Aerial photography.

- See Donaldson, E. W. : Photography from the air.

- See Eastman Kodak Co.: Aerial haze and its effect on photography from

the air.

- See Goussot, C. M.: Précis de photographie aérienne.

- See Landry, Alphonse: La photographie aérienne.

- See MacLeod, M. N.: Aeroplane photographie survey.

- See Maps, Photogrammetry, Topography.

- See.Nistri: The Nistri aerial camera.

- See Porro, F., e F. Voila: La fotografia aerea.

- See Volmerange, A.: La restitution des photographies aérienne.

Picard, Emil. Le gale Picard.

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, p. 341.

Piccioli, G. The Pegna "Rondine."

International Aeronautics, Vol. 1, No. 3 (Sept. 1923), New York, pp. 93-94, ill.

Pickering, S. F. See Weaver, E. R., and S. F. Pickering: An airship slide rule.

PiERCY, N. A. V. Note on the experimental aspect of one of the assumptions of Prandtl's aerofoil theory.

Journ. Eoy. Aer. Soc, Vol. 27, No. 154 (Oct. 1923), London, pp. 501-511.

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Propellers. See Diehl, Walter Stuart: Relative efficiency of direct and geared drive propellers.

- See Dietsius, H.: The air propeller, its strength and correct shape.

- See Leibenzon, L. C. : Calculation of torsional stresses in propeller blades.

- See Leroux, E. : Les hélices aériennes.

- See Münk, Max Michael: Analysis of Doctor Schaffran's propeller model

tests.

- See Münk, Max Michael: Analysis of W. F. Durand's and E. P. Lesley's

propeller tests.

- See Münk, Max Michael: Reduction in efficiency of propellers due to

slip stream.

- See Reed, S. Albert: Air reactions to objects moving at rates above the

velocity of sound with application to the air propeller.

- See Watts, H. C. : Air-screw research in Great Britain.

Pulitzer. Army and Navy entries in the Pulitzer trophy race.

Aviation, Vol. 15, No. 14 (Oct. 1, 1923), New York, pp. 400-103, ill.

- Lieut. A. J. Williams wins Pulitzer trophy race.

Aviation, Vol. 15, No. 16 (Oct. 15, 1923), New York, pp. 468-474, ill.

Pulitzer trophy. See Van Zandt, J. Parker: The 1923 Pulitzer air classic. Pumps. Tests of R. A. E. gear-wheel type petrol pump.

Aeronautical Research Committee, Reports and Memoranda No. 877 (E. 6), July, 1923, London, 1923, pp. 8, diagr.

Q

Qtjadruplan. See Besson: L'hydravion quadruplan Besson.

Queensland. Air services in Queensland.

Flight, Vol. 15, No. 31 (Aug. 2, 1923), London, p. 459, ill.

R

R. D. L'avion biplace Liore-Olivier, type LeO 8.

L'Aêrophile, 31e année, Nos. 5-6 (ler-15 mars 1923), Paris, pp. 74-76, ill.

- L'avion de chasse monoplan Wibault 3 C—l.

' 'Aérophile, 31e année, Nos. 9-10 (ler-15 mai 1923), Paris, pp. 138-141, ill.

—— Le biplan de transport quadrimoteur Bleriot type B-115.

L'Aêrophile, 31e année, Nos. 23-24 (ler-15 déc. 1923), Paris, pp. 355-358, ill.

- La coupe de consommation d'aviation Zénith.

L'Aêrophile, 31e année, Nos. 15-16 (ler-15 août 1923), Paris, pp. 235-237, ill.

- La Course-Croisière de la Méditerranée.

L'Aêrophile, 31e année, Nos. 17-18 (ler-15 sept. 1923), Paris, pp. 277-279, ill.

- L'exposition aéronautique internationale et la semaine d'aviation de

Gothembourg.

L'Aêrophile, 31e année, Nos. 17-18 (ler-15 sept. 1923), Paris, pp. 273-276, ill.

- Les hélicoptères.

L'Aêrophile, 31e année, Nos. 1-4, 11-12 (ler-15 jan.-ler-15 fév., ler-15 juin, 1923), Paris, pp. 17-19, 47-48, 169, ill.

- L'inauguration du centre médical d'examens et d'études de l'aéroport du

Bourget.

L'Aêrophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, p. 208, ill.

R. D. Nos derniers avions de vitesse.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 oct. 1923), Paris, pp. 308-310, ill.

- Sadi-Leeointe bat son propre record de hauteur. Ilmonteà 11.145 mètres.

L'Aérophile, 31e année, Nos. 21-22 (ler-15 nov. 1923), Paris, pp. 327-328, graph.

R. L. Un dimanche au pays du commandeur des Croyants.

L'Aérophile, 31e année, Nos. 7-8 (ler-15 avril 1923), Paris, pp. 115-116, ill.

- La XHe Coupe Gordon-Bennett des sphériques.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 oet. 1923), Paris, pp. 296-299, ill.

- Inauguration du monument Caudron, au Crotoy.

L'Aérophile, 31e année, Nos. 17-18 (ler-15 sept. 1923), Paris, p. 286, ill.

- Récit des deux premiers voyages aériens. Relation de Charles.

L'Aérophile, 31e année, Nos. 9-10 (ler-15 mai 1923), Paris, pp. 134-137, ill.

- Sarah Bernhardt aéronaute.

L'Aérophile, 31e année, Nos. 7-8 (ler-15 avril 1923), Paris, pp. 107-108, ill.

R. L. S. L'inauguration du monument Guynemer à poelcapelle.

L'Aérophile, 31e année, Nos. 15-16 (ler-15 août 1923), Paris, p. 250.

Races. International air races, St. Louis, U. S. A., October 1, 2, 3, 1923. Aeronautical Digest, Vol. 3, No. 1 (July 1923), New York, p. 17.

Racing. La Course-Croisière de la Méditerranée.

Flight, Vol. 15, No. 39 (Sept. 27, 1923), London, p. 583.

- The development of racing aeroplanes.

The Aeroplane, Vol. 25, No. 23 (Dec. 5, 1923), London, p. 550.

- The King's cup race.

Flight, Vol. 15, Nos. 28-29 (July 12-19, 1923), London, pp. 379-381, 393-399, ill.

Radiators. Making the airplane radiator and wing in one. Scient. Amer., Vol. 128 (May 1923), New York, p. 317, ill.

——■ Wing radiators.

Flight, Vol. 15, No. 13 (Mar. 29, 1923), London, p. 174, ill.

——■ See Wicselsberger, C. : Experiments with a built-in or fuselage radiator.

Radio. Air industry to pay tribute on basic radio patent.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 36-37.

-■ Air-mail planes to have radio telepho.

Aviation, Vol. 15, No. 24 (Dec. 10, 1923), New York, pp. 704-705, ill.

-■ Fighting aircraft with radio.

Literary Digest, Vol. 77 (June 16, 1923), New York, p. 25.

- Radio telephony on the London-Continental air routes.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 343.

- What balloon racers did with receiving sets.

Kadio Broadcast, Vol. 3 (Oct. 1923), Garden City, N. Y., pp. 507-509, ill.

- See Alessandri: La radio au service de l'aviation.

-■ See Kulebakin, V. S.: Störende Wirkuugen des elektrischen Zündsystems

der Explosionsmotoren auf den Radio-Empfang bei Flugzeugen.

Rafex. Helicopter Aying machines.

Discovery, Vol. 3, No. 25 (Jan. 1922), London, pp. 5-8, ill.

Rain. Making artificial rain at McCook Field.

Aviation, Vol. 14, No. 8 (Feb. 19, 1923), New York, p. 223.

Raker, John E. Helium in the national defense.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 129-130, ill.

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Renard, A. Un avion beige.

Association des Ingénieurs Sortis de l'Ecole Polytechnique de Bruxelles, T. 19, No. 1, 1923, pp. 3-19, m.

Renabu, Paul. Notice biographique du lieutenant-colonel Georges Espitallier. La Tech. Aéron., 14e année, n. s., No. 17 (15 mars. 1923), Paris, pp. 522-527, port.

- Le salon de l'aéronautique de 1922.

Paris, 1923, pp. 7, ill.

Renault. Le travail des moteurs d'aviation Renault.

L'Aérophile, 31e année, Nos. 11-12 (ler-15 juin 1923), Paris, pp. 184-185, ill.

Rénaux, Eugène. L'inauguration du monument Eugène Rénaux.

L'Aérophile, 31e année, Nos. 15-16 (ler-15 août 19231, Paris, p. 249, ill.

Rennie, J. D. Some notes on the design, construction, and operation of flying boats.

Journ. Roy. Aer. Soc, Vol. 27, No. 148 (Apr. 1923), London, pp. 123-181, diagr.

Renwick, W. S. See Green, F. M., and W. S. Renwick: Note on temperature measurements.

Research. Airplane research work through flight tests.

Aviation, Vol. 15, No. 6 (Aug. 6, 1923), New York, pp. 154-155, ill.

——- How Army and Navy air research pays its way.

Literary Digest, Vol. 76 (Feh. 3, 1923), New York, pp. 66-68.

-: International cooperation in aeronautical research.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 3 (Jan. 17, 1923), London, pp. 47-48.

•--L'office national des recherches scientifiques et industrielles et des inventions.

L'Aérophile, 31e année, Nos. 3-4 (ler-16 fév. 1923), Paris, p. XVIII.- Official research in 1922-23.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 13 (Sept. 26, 1923), London, pp. 313-314.

——• Research and results. •

The Aeroplane, Vol. 25, No. 23 (Dec. 5, 1923), London, p. 537.

- See Ames, Joseph Sweetman: Aeronautics and scientific research.

- See Ames, Joseph Sweetman: Relation between aeronautic research and

aircraft design.

- See Glazebrook, Richard Tetley: Standardization of methods of research.

- See Salmond, W. Geoffrey: The progress,of research and experiment.

Rettew, H. F., and G. Thumin. Tests on riveted joints in sheet duralumin.

National Advisory Committee for Aeronautics, Technical Notes No. 165, Nov. 1923, Washington, pp. 5, diagrs.

Rhoen. The 1923 Rhoen gliding and soaring competition.

Aviation, Vol. 15, No. 22 (Nov. 26, 1923), New York, p. 655, ill.

--■ The Rhoen soaring and gliding competition.

Aviation, Vol. 14, No. 16 (Apr. 16, 1923), New York, p. 426.

Rhön. A criticism of the 1923 Rhön gliding.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 13 (Sept. 26, 1923), London, p. 316, ill.

- The 1923 Rhön meeting.

Aer. .Eng. Suppl. The Aeroplane, Vol. 25, No. 9 (Aug. 29, 1923), London, pp. 236-238, ill.

- The Rhön gliding competitions.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 10 (Sept. 5, 1923), London, p. 256, ill.

Riabouchinski, M. D. Sur la resistance des fluides.

International Air Congress, London, 1923, Report, London, 1923, pp. 280-298, ill., diagr.

Ribs. See Ballenstedt, L.: Influence of ribs on strength of spars.

- See Tests: The Curtiss rib-testing machine.

Ricardo, Harry R. The internal-combustion engine, Vol. 1. Slow-speed engines.

London, Blackie & Son (Ltd.), 1923.

Richard. Le problème général de l'avion. Paris, 1923.

Richardson, Edward Adams. The strength and air resistance of tapered struts.

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, pp. 173-174.

Richmond, V. C. The hulls of rigid airships.

International Air Congress, London, 1923, Report, London, 1923, pp. 851-910, tabls.

Ricker, George W. Position finding by airplane.

Coast Artillery Journal, Vol. 58, No. 1 (Jan. 1923), Fort Monroe, Va., pp. 20-37, ill. Results of artillery firing tests observed and regulated by airplane reports.

Rieder, A. Disturbing effect of free hydrogen on fuel combustion in internal-combustion engines.

National Advisory Committee for Aeronautics, Technical Notes No. 133, Mar. 1923, Washington, pp. 5.

Rieman, Charles S. Chicago: The nation's airport.

U. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, pp. 27-28, ill.

Riiser-Larsen, H. J. The marking of aircraft.

International Air Congress, London, 1923, Report, London, 1923, pp. 659-662.

Rijkssttjdiedienst voor de Luchtvaart Amsterdam. Drijfproeven, verricht met een model van het Fokker Fill verkeersvliegtuig. Rapport V 20. De Ingenieur, 38e Jaargang, No. 28 (14 Juli 1923), Den Haag, pp. 561-562, ill.

- Invloed van den profielvorm van molenwieken op het opgenomen vermögen. Rapport A 38.

De Ingenieur, 38e Jaargang, No. 13 (31 Maart 1923), Den Haag, pp. 254-258, ill.

- Invloed van een afwijking van den juisten stand van snelheidsmeters op

de aanwijzing. Rapport A 42.

De Ingenieur, 38e Jaargang, No. 42 (20 Oct. 1923), Den Haag, pp. 869-870, ill.

- Onderzoek naar den invloed van een uitsnijding in den voorrand van het

draagvlak van het Fokker F3-vliegtuig op de aerodynamische eigenschap-pen. Rapport A 29.

De Ingenieur, 38e Jaargang, No. 3 (20 Jan. 1923), Den Haag, pp. 50-54, ill.

- Weerstandsmeeting van vliegtuigwielen en -koelers. Rapport A 64.

De Ingenieur, 38e Jaargang, No. 43 (27 Oct. 1923), Den Haag, pp. 882-884, ill.

Rikli, M. Aufgaben, Organisation und bisherige Tätigkeit der "Agis." Motorwagen, Bd. 26, No. 20 (July 31, 1923), Berlin, pp. 327-328, ill.

Ripert, Georges. Responsabilité du transporteur aérien. Le projet de loi français sur les clauses d'exonération de la responsabilité dans la transport aérien.

Revue Juridique Internationale de la Locomotion Aérienne, août 1923, Paris, pp. 353-363.

Ripley, C. M. What's above the clouds.

St. Nicholas, Vol. 50 (May 1923), New York, pp. 708-711, ill.

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Royal Air Force. King's regulations and orders for the Royal Air Force, 1918.

London, 1921, pp. 256.

Amendments, London, 1921, pp. 90. ^

Amendments, London, 1923, pp. 50.

- On apprentices for the R. A. F.

The Aeroplane, Vol. 25, No. 9 (Aug. 29,1923), London, pp. 224-226.

- On enlarging the Royal Air Force.

The Aeroplane, Vol. 24, Nos. 20-21 (May 16-23,1923), London, pp. 358-360, 373-374.

- On technical officers in the R. A. F.

The Aeroplane, Vol. 25, No. 11 (Sept. 12, 1923), London, pp. 265-268.

- On the R. A. F. pageant.

The Aeroplane, Vol. 25, No. 1 (July 4,1923), London, pp. 4-14, 33-36, ill.

- On the Royal Air Force Reserve.

Tha Aeroplane, Vol. 24, No. 7 (Feh. 14, 1923), London, pp. 109-110.

- The R. A. F. aerial pageant.

Flight, Vol. 15, No. 26 (Juna 28,1923), London, pp. 339-341, ill.

- R. A. F. Memorial.

Flight, Vol. 15, No. 29 (July 19,1923), London, pp. 400-401, ill.

.- The relations of the navy and the air force.

Flight, Vol. 15, No. 32 (Aug. 9, 1923), London, pp. 477-480.

- Training R. A. F. reserve pilots. The de Haviland Flying School.

Flight, Vol. 15, No. 29 (July 19,1923), London, pp. 416-417, ill.

- See Air Ministry: Health of the R. A. F. Report for 1921.

- See Hoare, Samuel: Reconstruction of the Royal Air Force.

- See Lee, A. S. G.: The spirit of air force discipline. A series of lectures

for recruits of the Royal Air Force.

- See Pattinson, L. A.: History of 99 Squadron, Independent Force Royal

Air Force.

Royce, F. H.< Derby en fête for Mr. F. H. Royce.

Flight, Vol. 15, No. 27 (July 5, 1923), London, pp. 372-374, 111.

Royce, M. W. The next war in the air. I. The road to universal slaughter. Nation, Vol. 116, No. 3018 (May 9,1923), New York, pp. 537-539, ill.

- Birth of a new sport.

Outlook, Vol. 133 (Apr. 21, 1923), New York, pp. 750-753, ill.

- Next war in the air.

Nation, Vol. 116 (May 9-16, 1923), New York, pp. 537-539, 566-568.

- Survey of commercial aviation in Italy.

Aviation, Vol. 14, No. 10 (Mar. 5, 1923), New York, pp. 262-265, ill.

Royer, E. Methode graphique permettant le trace d'ailes d'avions.

International Air Congress, London, 1923, Eeport, London, 1923, pp. 387-391, diagr.

Rubber. See United States Bureau of Foreign and Domestic Commerce, Department of Commerce: The use of statistics of rubber-goods exports.

Rules. Air-traffic rules agreed upon.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, p. 148.

- American air-traffic rules.

Aviation, Vol. 14, No. 8 (Feb. 19, 1923), New York, p. 224.

---- Rules of the air for balloonists.

Aviation, Vol. 15, No. 4 (July 23,1923), New York, p. 102.

Runbaken. The Runbaken petrol gauge.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 15 (Apr. 11,1923), London, pp. 272-274, ill.

Russell, Frank H. The American airplane and motor engineer. tj. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, p. 29.

- The development and construction of military airplanes in peace times.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 88-90.

- How modern racing planes are developed.

Aviation, Vol. 15, No. 13 (Sept. 24, 1923), New York, pp. 366-367, ill.

- Military-airplane development and construction in peace time.

Journ. Soc. Automotive Engineers, Vol. 12, No. 3 (Mar. 1923), New York, pp. 296-298.

Russia. Aviation in Russia.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 9 (Feh. 28, 1923), London, p. 158.

- Civil aviation in Russia.

Flight, Vol. 15, No. 15 (Apr. 12, 1923), London, p. 202, ill.

--Dekret der russischen Volkskommissare über den Luftverkehr. Vom

17. Januar 1921.

Nachrichten für Luftfahrer, Jahrg. 4, Nr. 46-47 (25. Nov. 1923), Berlin, pp. 457-459.

- On aviation in Russia.

The Aeroplane, Vol. 24, No. 13 (Mar. 28, 1923), London, p. 239.

- Russian aviation of to-day.

Flight, Vol. 15, No. 15 (Apr. 12, 1923), London, p. 203.

- Russia's German air fleet.

Literary Digest, Vol. 77 (June 30, 1923), New York, p. 23.

- See Popoff, G.: Air travel in Russia.

RTKS-Studiedienst Voor de Luchtvaart. "Note on a photographic method of measuring the deflections of a wing structure under static load."

International Air Congress, London, 1923, Report, London, 1923, pp. 212-216, ill., diagr.

S

S., M. See M. S.: Le congrès expérimental pour planeurs et moto-aviettes à Vauville.

S., M. See M, S.: Le meeting international des avions à faible puissance de Lympne. £

S., R. L. See R. L. S.: L'inauguration du monument Guynemer à poelcapelle.

S., W. H. 1922.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 1 (Jan. 3, 1923), London, p. 7.

Sabatier, J. Influence des conditions minima de sécurité sur la charge utile des avions de transport.

Aéronautique, T. 5, No. 48 (May 1923), Paris, pp. 210-215.

Sabinin, G. See Krassovsky, N., and' G. Sabinin: Problems of utilizing of energy of wind.

Sadi-Lecointe, J. See Records: Le record du monde de vitesse. Sadi Lecointe de nouveau 1' "Homme de plus vite du Monde."

Safety. American aeronautical safety code.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, p. 421.

- Security in the air.

Outlook, Vol. 51, No. 1312 (Mar. 24, 1923), London, pp. 240-241.

Sahlin Matjritz Reinhold. See Sweden. Lufttrafikkommittén.

Saybbs, W. H. The design of low-powered aeroplanes.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, Nos. 19-20 (May 9-16, 1923), London, pp. 343-344, 363-364.

- The lesson of the Schneider cup race.

The Aeroplane, Vol. 25, No. 14 (Oct. 3, 1923), London, pp. 340-352, ill.

- The low-powered aeroplane.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 18 (May 2, 1923), London, pp. 323-324.

- Lympne impressions.

The Aeroplane, Vol. 25, No. 16 (Oct. 17, 1923), London, pp. 404-407.

——■ The "mystery" of soaring flight.

The Aeroplane, Vol. 25, Nos. 20-21 (Nov. 14-21, 1923), London, pp. 488, 508.

- On congresses.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 2 (July 11, 1923), London, pp. 51-52.

- Practical aspects of the new subsidy scheme.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 11 (Mar. 14, 1923), London, pp. 195-198.

- The two extremes.

The Aeroplane, Vol. 25, No. 19 (Nov. 7, 1923), London, p. 464.

——■ Vorticism in aeronautics.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, Nos. 12-17 (Mar. 21-Apr. 25, 1923), London, pp. 211-214, 231-234, 253-256, 271-272, 287-288, 307-310.

ScAMMBLL, J. M. Lessons from recent aircraft operations.

U. S. Air Service, Vol. 8, No. 10 (Oct. 1923), Washington, pp. 29-30.

- Policies and the new armament competition.

North Amer. Bev., Vol. 218 (Oct. 1923), New York, pp. 448-454.

Scandinavia. Meddelande frän Luftfartsmyndigheten 1923 nr 1-2, 3-4. Stockholm, 1923, pp. 4+25.

Schappban. See Münk, Max Michael: Analysis of Doctor Schaffran's propeller model tests.

Schaffran, H. Der antrieb von luft- und Wasserfahrzeugen durch Luftpropeller.

Schiffbau, Bd. 24, No. 20, 25, 26 and 29 (Feb. 14, März 21, 28, April 18, 1923), Berlin, pp. 319-324, 399-401, 418-421, 459-463, ill. Tests made in Prussian Experimental Inst, for hydraulic and marine engineering.

Schebz, Walter. Ueber die Möglichkeit eines wirtschaftlichen Luftschiffverkehrs zwischen Lissabon und Rio de Janeiro.

Luftfahrt, Bd. 27, No. 7 (Juli 5, 1923), Berlin, pp. 74-77, ill.

Schieferstein. See Schrenk, M.: Bedenken gegen die Anwendung des Schie-fersteinschen Prinzips in der Flugtechnik.

Schildhauer, Edward. Chicago, the center of airship routes of the world. Ü. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 23-24, ill.

- Commercial airways of America.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 246, 294.

Schlink, W. Bemerkungen über Rhön-Wettbewerb 1923.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 17-22 (Nov. 21, 1923), Berlin, pp. 154-157.

Schmidt, F. E. Building the large Navy dirigible ZR-1.

American Machinist, Vol. 59, No. 10 (Sept. 6, 1923), New York, pp. 367-371, ill.

Schmitz, Val A. Lighthouses of the sky for municipal landing fields.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 260-261, ill.

61287—26-9

Schneider cup. La Coupe Jacques Schneider des hydravions.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 oct. 1923), Paris, pp. 311-313, ill.

- On the Schneider trophy competition.

The Aeroplane, Vol. 25, No. 14 (Oct. 3, 1923), London, pp. 332-340, ill.

- The Schneider cup contest.

The Aeroplane, Vol. 25, No. 13 (Sept. 26, 1923), London, pp. 308-310, diagr., map.

- The Schneider cup international seaplane race. America scores a well-deserved win.

Flight, Vol. 15, No. 40 (Oct. 4, 1923), London, pp. 592-601, ill.

- The Schneider cup seaplane race.

Flight, Vol. 15, No. 37, 39 (Sept. 13, 27, 1923), London, pp. 549, 571-574, ill.

- Schneider international seaplane race.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 246-248, ill. Aviation, Vol. 14, No. 8 (Feb. 19,1923), New York, p. 222. Flight, Vol. 15, No. 33 (Aug. 16, 1923), London, p. 495.

- The Schneider international seaplane race: Plan of the course.

Flight, Vol. 15, No. 38 (Sept. 20, 1923), London, p. 556, map.

- The story of the Schneider cup seaplane race.

Aviation, Vol. 15, No. 19 (Nov. 5, 1923), New York, pp. 575-580, ill.

- Trials of American Schneider cup entry.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, p. 191, ill.

- The United States wins the Schneider cup race.

Aviation, Vol. 15, No. 15 (Oct. 8, 1923), New York, pp. 436-437, ill.

- See Sayers, W. H.: The lesson of the Schneider cup race.

Schools. New York University inaugurates courses in aeronautical engineering and industrial aviation.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 417-418.

Schoop. The Schoop metal-spraying process.

Aero. Eng. Suppl. The Aeroplane, Vol. 24, No. 26 (June 27, 1923), London, pp. 484-486, ill.

Schrenk, M. Bedenken gegen die Anwendung des Schiefersteinschen Prinzips in der Flugtechnik.

Zeitschr. Flugt. Motorluftsch., 14 Jahrg., 15-16 Heft (Aug. 31, 1923), Berlin, pp. 122-124.

ScHÜTTE-Lanz. Schütte-Lanz luftschiffe.

Nachr. Luftf., Jahrg. 3, nr. 52 (31 Dez. 1922), Berlin, pp. 644-645.

Schwab, Charles M. Safe and sane Aying.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 67, 144.

Schwamb, T. A., and C. S. Smith. Tests on built-up airplane struts having initial tension in outside Abers.

National Advisory Committee for Aeronautics, Technical Notes No. 151, Aug. 1923, Washington, pp. 6, ills., diagrs.

Schwengler, H. Das projekt des Boerner-Luftschiffes und seine Eignung für den Ueberseeverkehr.

Schiffbau, Bd. 24, No. 17 (Jan. 24, 1923), Berlin, pp. 259-262, ill.

Science Museum, South Kensington. Catalogue of the collections in the Science Museum, South Kensington, with descriptive and historical notes and illustrations. Aeronautics.

London, H. M. Stationery Office, 1922, pp. 71, ill.

Scott, C. H. Commercial aspect of airship transport.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 333. International Air Congress, London, 1923, Report, London, 1923, pp. 823-845.

Scott, Wisnbb Gillette. Commercial aviation and Pacific Coast defense.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 421, 454.

- Landing places for aircraft alongside state highways.

Aeronautical Digest, Vol. 2, No. 1 (Jan. 1923), New York, p. 15, ill.

Scott, Verner T. Airplane deafness and its prevention.

U. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, p. 36.

Seaplanes. French seaplane competition.

Aviation, Vol. 15, No. 20 (Nov. 12, 1923), New York, p. 600.

- The French seaplane cruiser competition.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 13 (Sept. 26, 1923), London, p. 318.

- Ten years' testing of model seaplanes.

Flight, Vol. 15, No. 6 (Feh. 8,1923), London, p. 85.

- See Cave-Brown-Cave, T. R. : The practical aspect of seaplanes.

- See Fairey, C. R.: Seaplanes.

Seable, Frank. Colonel Searle talks on air transport.

Aviation, Vol. 14, No. 10 (Mar. 5, 1923), New York, p. 272.

- London-Manchester-Amsterdam-Paris air service.

Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, pp. 165-166, 212, ill.

Sears, J. E. Who's who in engineering.

London, The Compendium Publishing Co., third edition, 1923.

Reviewed in Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 3 (Jan. 17, 1923), London, p. 52.

Seattle. Seattle, the aeronautical base of the north Pacific coast.

Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, pp. 178-179, ill.

Seehase, H. Holz- oder Metallflugzeug.

Zeitschr. Flugt. Motorluftsch., Bd. 14, No. 1-2 (Jan. 26, 1923), Berlin, pp. 2-6, ill.

Seotjin, Marc. See Tissandier, Paul: Marc Seguin (1786-1875). Ses travaux sur l'aéronautique.

Seiler, F. E., Jr. See Miller, Roy G., and F. E. Seiler, jr. : The design of metal airplanes.

Sellers, Matthew B. A comparison of some modern wing profiles. Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, pp. 182-183.

- Requirements of a man propelled airplane.

Aviation, Vol. 15, No. 20 (Nov. 12,1923), New York, p. 608.

Serph, André. Le centenaire du physicien Charles.

L'Aérophile, 31e année, Nos. 9-10 (ler-15 mai 1923), Paris, pp. 131-133, ill.

Sextant. The sextant and air navigation.

Aviation, Vol. 15, No. 16 (Oct. 15, 1923), New York, pp. 492-493.

Seymour, Lester D. Is the Liberty engine "Obsolescent"?

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, pp. 174-175.

- Regarding the new N. A. C. A. nomenclature.

Aviation, Vol. 14, No. 21 (May 21, 1923), New York, pp. 560-561.

- Technical developments in aviation.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, p. 347.

Shaw, B. Russell. Air transport values evolved from American duration flights.

U. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, pp. 14-15.

- International air races and the designer.

Aviation, Vol. 16, No. 10 (Sept. 3, 1923), New York, pp. 282-2S3.

Shaw, B. Russell. The St. Louis air races.

V. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, pp. 23-24.

- The timing of airplane races.

Aerial Age, Vol. 16, No. 4 (Apr. 1923), New York, pp. 171-172, ill.

Shaw, Napier. The air and its ways. Rede Lecture 1921, in the University of Cambridge, with other contributions to meteorology for schools and colleges.

London, Cambridge University Press; New York, Macmillan, 1923, pp. 257, ill. Shenandoah. U. S. S. Shenandoah.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, pp. 322-326, ill.

Sheppard, Morris. Helium and the national defense.

U. S. Air Service, Vol. 8, No. 1 (Jan. 1923), Washington, pp. 11-12.

Sheriff, J. Ed. The soaring wave.

Aerial Age, Vol. 16, No. 2 (Feb. 1923), New York, pp. 68-69.

Sherry, B. J. The meteorological service on the Army's model airway. U. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, pp. 23-24.

- Wind conditions at time of airplane accidents.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, p. 44.

Shoemaker, James M., and John G. Lee. Preliminary study of the damping factor in roll.

National Advisory Committee lor Aeronautics, Technical Notes, No. 161, Oct. 1923, Washington, pp. 17, ills., diagrs.

Silcrome. See Valves: Silcrome valves.

Silsbee, Francis Briggs. The effect of electrode temperature on the sparking voltage of short spark gaps.

National Advisory Committee for Aeronautics, Report No. 179, Jan. 30, 1924, Washington, Government Printing Office, 1923, pp. 10, ill., diagrs.

Simmonds, O. E. See Bradfield, F. B., and O. E. Simmonds: Rolling and yawing moments due to roll of model Avro wings, with standard and interplane rudder moments for standard and special large rudder.

Simmons, L. F. G., and E. Owes. Elimination of the static pressure gradient along wind tunnels of the N. P. L. type.

Aeronautical Research Committee, Reports and Memoranda, No. 873 (Ae. 109), June 1923, London, 1923, pp. 7, ill., diagr.

- An investigation of the influence of downwash on the rotary derivative Ma.

Aeronautical Research Committee, Reports and Memoranda, No. 826 (Ae. 77), June, 1921, London, 1923, pp. 8, tahls., diagrs.

Simmons, L. F G., and H. Bateman. An investigation of the wind forces , and moments acting on models, 1/50 scale, of the Caquot kite balloon.

Aeronautical Research Committee, Reports and Memoranda, No. 753 (Ae. 17), June, 1920, London, 1923, pp. 20, tahls., diagr.

Singapore. On the Singapore base and the great war.

The Aeroplane, Vol. 25, No. 4 (July 25, 1923), London, pp. 93-98.

Skan, Sylvia W. See Cowley, W. L., A. G. Gadd, L. J. Jones, and Sylvia W. Skan: Biplane investigation with Royal Air Force, 15 section. Part III. Tests at various staggers and gap chord ratios.

Skeel, Burt E. See Mitchell trophy: Capt. Burt E. Skeel wins Mitchel trophy race.

Skimmers. An Indian aero-skimmer.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 18 (May 2, 1923), London, pp. 324-326, ill.

Skywriting. Commercial value of skywriting.

Aviation, Vol. 15, No. 4 (July 23, 1923), New York, p. 102.

- Skywriting—A successful commercial activity.

Aviation, Vol. 15, No. 26 (Dec. 24, 1923), New York, pp. 772-773, ill.

- Skywriting as a business.

U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, ï>p. 43-14.

- Skywriting for advertising purposes.

Aviation, Vol. 14, No. 6 (Feb. 5, 1923), New York, pp. 152-153, ill.

- See Cameron, Allan J. : Skywriting pilots have covered United States.

- See Klemin, A. : Handwriting on the sky, the most recent and compelling

method of advertising.

Slide rule. See Weaver, E. R., and S. F. Pickering: An airship slide rule.

Slotted wing. See International Air Congress: International Air Congress.

Smith. The Smith retractible chassis.

Aerial Age, Vol. 16, No. 7 (July, 1923), New York, pp. 343, 346, ill.

Smith, C. S. See Schwamb, T. A., and C. S. Smith: Tests on built-up airplane struts having initial tension in outside fibers.

Smith, Earl B. Accleerometer for measuring impact.

Proc. 26, Annual Meeting Amer. Soc. Testing Materials, Vol. 23, ii, 1923, pp. 626-639.

Smith, Hilmar F. Huge airship hangar for United States Army: Scott Field, Illinois.

Engineering News-Record, Vol. 90, No. 8 (Feb. 22, 1923), New York, pp. 334-340, ill.

Snbed, Albert L. British air fleets hold Turkey in grip.

TJ. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, pp. 15-16.

Soaring flight. Congrès du vol à voile.

L'Aérophile, 31e année, Nos. 1-2 (ler-15 jan. 1923), Paris, p. 31.

- Locating fields for soaring flight.

TJ. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, p. 32, diagr.

- The soaring flight question.

Flight, Vol. 15, No. 46 (Nov. 15, 1923), London, pp. 702-704.

- See Beach, Stanley Yale: Some achievements in soaring flight.

- See Biska: Le vol à voile.

- See Eisenlohr, Roland: Der motorlose Flug.

- See Georgii, W.: Der Segelflug und seine Kraftquellen im Luftmeer.

- See Germany: The development of soaring flight in Germany.

- See Gliding flight.

- See Hankin, E. H.: The soaring flight question.

- See I. T.: Le vol à voile.

- See Sayers, W. H.: The "mystery" of soaring flight.

- See Sheriff, J. Ed.: The soaring wave.

- See Suffrin-Hébert, H.: L'avion sans moteur.

- See Weiss, J. B. : Gliding and soaring flight.

South Africa. Südafrikanisches Gesetz über das Inkrafttreten der Internationalen Konvention znr Regelung der Luftfahrt und über den Erlass von Vorschriften zur Kontrolle, Regelung und Förderung des Fingwesens in der Union und zn anderen hiermit im Zusammenhang stehenden Zwecken. Nachrichten für Luttfahrer, Jahrg. 4, Nr. 31-33 (11-19 Aug. 1923), Berlin, pp. 341-343, 353354.

South America. An aeronautical survey of South America.

Aviation, Vol. 15, No. 1 (July 2, 1923), New York, pp. 14-16.

- See Luke, G. F.: Aviation in South America, with an introduction on the

South Atlantic flight.

Southern California. United States Air Service reserve of southern California.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 418-419, 449.

Southwell, R. V. Apparatus and equipment recently constructed in the aerodynamics department of the National Physical Laboratory. Flight, Vol. 15, No. 27 (July 5, 1923), London, pp. 370-371.

International Air Congress, London, 1923, Report, London, 1923, pp. 101-116, ill., diagr.

- On Castigliano's theorem of least work, and the principle of St. Venant.

Aeronautical Research Committee, Reports and Memoranda, No. 821 (Ae. 72) (May 1922), London, 1923, pp. 22.

- On the determination of the stresses in braced frameworks. Part II:

The effect of shear upon a framework of uniform rectangular cross-section.

Aeronautical Research Committee, Eeports and Memoranda, No. 790 (Ae. 47) (Feh. 1922), London, 1922, pp. 15.

- On the determination of the stresses in braced frameworks. Part III:

The effect of axial loading, torsion, flexure, and shear upon a braced tube of any uniform cross section.

Aeronautical Eesearch Committee, Reports and Memoranda, No. 791 (Ae. 48) (Apr. 1922), London, 1922, pp. 16.

- On the determination of the stresses in braced frameworks. Part IV:

The effects of axial loading, flexure, torsion, and shear upon a tubular framework with taper.

Aeronautical Research Committee, Reports and Memoranda, No. 819 (Ae. 71) (Sept. 1922), London, 1923, pp. 11, diagr.

Sowing. See Agriculture: Sowing seeds by airplane.

Spad. Prove compiute con l'elica a passo variabile per l'apparecchio Spad XIII con motore H. S. 44.

Rend. Istituto Sper. Aeron., Anno 11, Vol. 1, N. 2 (15 Agosto 1923), pp. 87, ill.

Spain. See Antogira: A new type of flying machine.

Spark plugs. Multiple spark plugs may mean more power.

Aerial Age, Vol. 16, No. 6 (June, 1923), New York, p. 265, diagr.

- See Silsbee, Francis Briggs: The effect of electrode temperature on the

sparking voltage of short spark gaps.

Sparrow, Stanwood Willston. The arithmetic of distribution in multi-cylinder engines.

National Advisory Committee for Aeronautics, Technical Notes No. 162, Oct. 1923, Washington, pp. 9, tabls., diagrs.

- See Lee, Stephen M., and Stanwood W. Sparrow: Testing fuels for high-compression engines.

Spars. See Ballenstedt, L.: Influence of ribs on strength of spars.

Special commission organizing the first aerial derby around the world. Bulletin No. 1-10. Special commission organizing the first aerial derby around the world under the rules of the Fédération Aéronautique Internationale.

Hongkong, etc., 1919-20, ten numbers in one volume. No more published; in 1921 commis sion was superseded by the World's Board of Aeronautical Commissioners (Inc.).

Specifications. American and foreign airplane specifications.

Automotive Industries, Vol. 48, No. 8 (Feb. 22, 1923), New York, pp. 454-459.

Speed. Air speeds approaching 5 miles a minute.

Literary Digest, Vol. 79 (Nov. 17, 1923), New York, pp. 71-74.

- American pilots make new world's speed records.

Aviation, Vol. 14, No. 15 (Apr. 9, 1923), New York, p. 396.

- Building the world's fastest plane.

Literary Digest, Voi.'75 (Dec. 9, 1922), New York, pp. 67-68.

- Fastest flying plane in the world.

Literary Digest, Vol. 77 (Apr. 14, 1923), New York, pp. 48-50, ill.

- Shall we fly 500 miles an hour?

Literary Digest, Vol. 77 (May 26, 1923), New York, pp. 67-70.

- Some sensations in flying 248 miles an hour.

Literary Digest, Vol. 76 (Mar. 10, 1923), New York, pp. 72-75.

—;— Two new speed records for American planes.

Literary Digest, Vol. 79 (Oct. 20, 1923), New York, pp. 70-75, ill.

- The world's high-speed records.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 243-245, 288.

- World's maximum airplane speed record beaten.

Aviation, Vol. 15, No. 20 (Nov. 12, 1923), New York, pp. 598-599, ill.

— See Bacon, E. F.: Bamberg speed measuring station.

- -See Brown, W. G. : Measuring an airplane's true speed in flight testing.

- See M. L.: Les nouveaux records de vitesse aux États-Unis.

Speed indicators. See Stewart, C. J.: Measurement of air speed in aeroplanes.

Spencer, G. K. The contest for air power in the Pacific.

Aviation, Vol. 14, No. 12 (Mar. 19, 1923), New York, pp. 318-319, ill.

Sperrt, Elmer A. The automatic pilot.

International Air Congress, London, 1923, Report, London, 1923, pp. 406-413, ill.

- The high intensity light in night aviation. i

International Air Congress, London, 1923, Report, London, 1923, pp. 816-821, 111.

- The Sperry gyro turn indicator.

International Air Congress, London, 1923, Report, London, 1923, pp. 404-405, ill.

- A substitute for aviation gasoline that will not burn.

International Air Congress, London, 1923, Report, London, 1923, pp. 602-605, ill.

Sperrt, L. B. L. B. Sperry lost at sea.

Aviation, Vol. 15, No. 26 (Dec. 24,1923), New York, p. 777, ill.

Sperrt, Lawrence. Lawrence Sperry.

The Aeroplane, Vol. 25, No. 25 (Dec. 19,1923), London, p. 680, ill.

"SpiNnRiFT." Free balloon hazards in flying over water.

Aviation, Vol. 15, No. 4 (July 23, 1923), New York, pp. 93-95, ill.

Spiropulos, J. Der Luftraum, integrierender Teil des Staatsgebietes. Leipzig, Rosberg, 1922, pp. xil,|130.

Stability. Mechanical device for illustrating airplane stability. Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 141-142, ill.

- »See Barlow, T. M.: Experimental determination of aircraft stability.

- «See Breguet, Louis, et René Devillers: Le problème de la stabilité des

avions.

- «See Kernéis, Jean: La stabilité longitudinale des avions.

- «See König, Georg: Zur Längsstabilität der Flugzeuge.

■- «See Leseurre, Jean: Considérations sur le centrage et l'équilibre des

avions.

- «See Norton, Frederick Harwood: A study of longitudinal dynamic stability in flight. •

■- «See Wilson, Edwin Bidwell: Dynamic stability as affected by the longitudinal moment of inertia.

Stabilizers. «See Gray, James G.: On the application of the gyroscope to the solution of the "vertical" problem of aircraft.

Stahl, Charles. Artificial illumination for landing fields.

Aviation vol. 15, No. 11 (Sept. 10,1923), New York, pp. 302-304.

Stamps. Catalogue historique et descriptif des timbres de la poste aérienne. Paris, 1922.

- Prize designs for air-mail stamps.

Flight, Vol. 15, No. 13 (Mar. 29, 1923), London, p. 176, ill.

- «See Armstrong, Douglas B. : Air-post stamps.

Standardization. Aeronautical standardization.

Aviation, Vol. 14, No. 10 (Mar. 5, 1923), New York, pp. 269-270.

- «See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Margoulis,

R. Verduzio, Richard Katzmayr, E. B. Wolff, and A. F. Zahm: Standardization and aerodynamics.

Stanton, T. E. The nature of lubricants in engineering practice.

International Air Congress, London, 1923, Eeport, London, 1923, pp. 520-529, diagr.

Stahrett, D. W. Sailing the air with wind power.

Aerial Age, Vol. 16, No. 2 (Feb. 1923), New York, p. 68.

Starting. «See Martinot-Lagarde: Les accessories du groupe motopropulsuer.

Statax. The new 8-horsepower Statax engine. Several modifications introduced in the latest model.

Flight, Vol. 15, No. 12 (Mar. 22, 1923), London, p. 157, ill.

- Statax three-cylinder rotary engine.

Aviation, Vol. 14, No. 9 (Feb. 26, 1923), New York, p. 244.

Steam. Coming—the steam airplane?

Literary Digest, Vol. 78 (Sept. 8, 1923), New York, pp. 70-71.

Steel. «See Angle, Glenn, D. : A new process of steel-cylinder construction.

- «See Angle, Glenn D.: Welded steel cylinder water jackets.

- «See Bagnali-Wild, R. K., Leslie Aitchison, A. A. Remington, A. J.

Rowledge, and W. A. Thain: Aircraft steels and material.

- «See Knerr, Horace C: Steel structural parts for aircraft.

—— «See Pitois, E.: Contrubution à l'étude du grain des aciers appliquée aux ferrures d'avions.

Steel. See Urquhart, John W.: Steel thermal treatment.

Steel tubes. Twelve years' welded steel tube construction.

Flight, Vol. 15, No. 49 (Dec. 6, 1923), London, pp. 739-742, ill.

Steering. Leader cable systems for steering of aeroplanes.

Flight, Vol. 15, No. 52 (Dec. 27, 1923), London, pp. 782-785, ill., diagr.

Stefansson, Vilhjalmur. The northward course of empire. New York, Harcourt Brace & Co., 1923.

- Transpolar commerce by air.

U. S. Air Service, Vol. 8, No. 4 (Apr. 1923), Washington, pp. 9-14, ill.

Stern, W. J. See Moss, H., and W. J. Stern: Phase setting of engine indicators.

Stevens, Frederick W. A constant pressure bomb.

National Advisory Committee for Aeronautics, Report No. 176, Feb. 8, 1924, Washington, Government Printing Office, 1923, pp. 8, ill., tab.

Stevens, H. L. The measurement of aeroplane speed with special reference to the use of a suspended static head.

Aeronautical Research Committee, Reports and Memoranda, No. 854 (Ae. 94), Oct. 1922, London, 1923, pp. 16, ill., tabls.

Stewart, C. J. Measurement of air speed in aeroplanes.

Journal of Scientific Instruments, Vol. 1, No. 2 (Nov. 1923), London, pp. 43-50, ill.

Stout, William B. Wood versus metal for airplanes.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 16-17, ill.

Streett, St. Clair. The Air Service model airway.

Aeronautical Digest, Vol. 2, No. 5 (May 1923), New York, pp. 324-326, 381, ill. Boiling Field.

Stressing panel. Report of the airship stressing panel.

Aeronautical Research Committee, Reports and Memoranda, No. 800 (Aug. 1922), London, 1923, pp. 76, tabls., diagrs.

Stromberg. Stromberg aviation carburetors.

Aviation,-Vol. 15, No. 17 (Oct. 22, 1923), New York, p. 523, ill.

Stromboli. See Hooker, Peter: A new aero engine. Stromboli.

Strut sections. See Warner, Edward P.: Wind-tunnel tests of five strut sections in yaw.

Struts. See Lewe, Viktor: Compressive strength of tapered airplane struts.

- See Richardson, Edwards Adams: The strength and air resistance of

tapered struts.

- See Schwamb, T. A., and C. S. Smith: Tests on built-up airplane struts

having initial tension in outside fibers.

Stuart, A. H. An acoustic tension meter.

Journ. Roy. Aer. Soc, Vol. 27, No. 146 (Feb. 1923), London, pp. 73-78, ill.

Student. Flight characteristics.

National Advisory Committee for Aeronautics, Technical Notes No. 153, Aug. 1923, Washington, pp. 8.

Sturge, A. L. Aviation insurance.

International Air Congress, London, 1923, Report, London, 1923, pp. 774-776.

Stuttgart. The stuttgart monoplane—1922 type.

Flight, Vol. 15, No. 4 (Jan. 25, 1923), London, pp. 52-53, diagr.

Subsidies. Modification of Government subsidy to British air lines. Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, p. 35.

Sudre, E. De l'établissement du droit international privé de l'air.

International Air Congress, London, 1923, Report, London, 1923, pp. 652-655.

Sun re, E. et E. Peyriller. Répertoire de l'aéronautique et des transports aériens.

Paris, Editeur G. Roche-d'Estrez, 1923, pp.

SüRiNG, R. See Moedebeck: Moedebecks Taschenbuch für Flugtechniker und Luftschiffer bearb. u. hrsgeg. v. R. Süring u. K. Wegener.

Suffrin, Hebert, H. L'avion sans moteur.

Technique Moderne, T. 15, No. 1, 1923, Paris, pp. 11-16, ill. Paris, 1923.

- Le calcul et la construction des hélices en bois.

Technique Moderne, T. 15, No. 8 (avril 15, 1923), Paris, pp. 232-236, ill.

- La fabrication des hélices d'aviation.

Ouvrier Moderne, T. 6, No. 1 (Apr. 1923), Paris, pp. 1-5, ill.

- Le VIIe salon international de l'aéronautique.

Paris, 1922, pp. 7, ill.

Supermarine. The supermarine Sea Eagle.

Flight, Vol. 15, No. 26, (June 28, 1923), London, pp. 351-352, ill.

Supremacy. Air supremacy.

Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, pp. 71-72,118.

Surling, R., and K. Wegener. Moedebeck's taschenbuch fuer flugtechniker und luftschieffer. Fourth edition.

Berlin, Verlag Von M. Krayn, 1923, pp. 920, ill.

Surveying. Airplane survey of the Mississippi Delta.

Literary Digest, Vol. 75 (Dec. 16, 1922,) New York, p. 25.

- Assembling an aerial survey.

Scient. Amer., Vol. 128 (Feb. 1923), New York, p. 93, ill.

- »See Barry, P. J. : Limitations of aerial surveying outlined.

- »See Jones, B. Melvill: Aerial surveying.

- »See Jones, B. Melvill, and J. C. Griffiths: Recent experiments in aerial

surveying by vertical photographs.

- »See MacLeod, M. N.: Aeroplane photographic survey.

Sutherland. The Duke of Sutherland motor glider competition.

Flight, Vol. 15, No. 17 (Apr. 26, 1923), London, p. 225.

- The Duke of Sutherland's prize.

Flight, Vol. 15, No. 15 (Apr. 12, 1923), London, pp. 200-201.

Sutherland, Millicent. "My flight."

Outlook, Vol. 51, No. 1318 (May 5, 1923), London, pp. 368-369.

Svedenborg, G. V. E. »See Ekholm, Nils, och G. V. E. Svedenborg: S. A. Andres ballongfärd mot nordpolen 11/7 1897.

Swanson. Swanson biplane.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, pp. 38, 43, ill.

- The Swanson model 3 sport plane.

Flight, Vol. 15, No. 20 (May 17, 1923>, London, p. 261, ill.

Sweden. Ausführungsbestimmungen zur schwedischen Luftfahrtverordnung vom 26. Mai 1922.

Nachrichten für Luitfahrer, Jahrg. 4, Nr. 21-22 (27. Mai-3. Juni 1923), Berlin, pp. 241-243, 253-256.

Sweden. Aviation in Sweden.

Flight, Vol. 15, No. 3 (Jan.lS, 1923), London, p. 39.

- Civil aviation in Sweden.

Flight, Vol. 15, No. 51 (Dec. 20, 1923), London, p. 770.

- Lufttrafikkommittén. Betänkande och förslag angâende reguljär lufttrafik och âtgarder frân statens sida för dess främjande avgivet av den av Kungl. Maj: t den 2 maj 1919 för ändamalet tillsatta kommitté (Lufttrafikkommittén). . •

Stockholm, I. Haeggströms boktryckeri, 1921, pp. xi, 179, 252, ill., map.

Switzerland. Plan d'examen pour les épreuves théoriques du brevet nation suisse de pilot-aviateur. Lausanne, 1922.

Sykes, F. H. Aviation in peace and war. London, 1922, pp. 140.

--Some aspects of aeronautical progress.

Journ. Roy. Aer. Soc, Vol. 27, No. 156 (Dec. 1923), London, pp. 606-617.

T

T., A. See A. T.: Quelques chiffres et quelques réflexions sur le trafic des lignes aériennes françaises en 1922.

T., I. See I. T.: Le concours Espagnol d'avions militaires.

- See I. T.: Le grand prix de la motoaviette du Petit Parisien.

- See I. T. : La Moto-Aviette.

- See I. T.: Succès des essais de l'hélicoptère Śmuchen.

- See I. T.: Le vol à voile.

Tachometer. See Reid, H. J. E.: The N. A. C. A. recording tachometer and angle of attack recorder.

Tailless airplane. See Arnoud: L'avion sans queue.

Taylor, Edward F. The air mail an economic necessity.

Aerial Age, Vol. 16, No. 2 (Feb. 1923), New York, pp. 53-54.

Taylor, G. I. Experiments on the motion of solid bodies in rotating fluids.

Proc. Roy. Soc, London, Ser. A., Vol. 104, No. 725, 1923, pp-. 213-218.

——■ The motion of a sphere in a rotating liquid.

Proc Roy. Soc, London, Ser. A, Vol. 102, No. 715, London, pp. 180-189.

- See Drysdale, C. V., Allen Ferguson, A. E. M. Geddes, A. H. Gibson,

F. W. Hunt, Horace Lamb, A. G. M. Michell, and G. I. Taylor: The mechanical properties of fluids.

TC-1. Trials of new Goodyear army airship TC-1.

Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, p. 371, ill.

TC-2. Night flight of airship TC-2.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, p, 195.

Tchentsoff, N. G. See Vetschinkin, V. P., and N. G. Tchentsoff: Plane pendulum with two degrees of freedom, applied for determination of the height of the center of gravity and of the moment of inertia of a solid.

Telephony. See Photography: Aerial pictures in telephone study.

Tenani, M. Altimettria barometrica.

Rend. Istituto Sper. Aer., Anno 11, Vol. 1, N. 1 (15 mag. 1923), Roma, p. 64.

- See Gallo, G., e M. Tenani: Un nuovo tipojdi viscosimetro.

Tennessee. Mapping Tennessee from the air.

Aviation, Vol. 14, No. 8 (Feh. 19, 1923), New York, p. 218.

Terminology. See Nomenclature.

Testing. Torsion test rig up for Universal testing machine.

Aerial Age, Vol. 16, No. 6 (June 1923), New York, pp. 266, 282, ill.

Tests. The Curtiss rib*testing machine.

Aviation, Vol. 15, No. 9 (Aug. 27,1923), New York, p. 248, ill.

- Dummy aircraft observer.

Scient. Amer., Vol. 129 (Aug. 1923), New York, p. Ill, ill.

- Testing models without a wind tunnel.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 2 (Jan. 10, 1923), London, p. 27.

Tevis, M. Sliding downhill'on the air.

St. Nicholas, Vol. 50 (Oct. 1923), New York, pp. 1325-1327, ill.

Textiles. See Haven, G. B.: A constant load rate testing machine for textiles.

Thain, W. A. See Bagnall-Wild, R. K.; Leslie Aitchison, A. A. Remington, A. J. Rowledge, and W. A. Thain: Aircraft steels and material.

Thom, Alexander. An empirical method of predicting the aerodynamic properties of an aerofoil.

Aeronautical Research Committee, Reports and Memoranda, No. 837 (Ae. 87), Dec. 1921, London, 1923, pp. 7, tabls., diagrs.

Thomas, W. Norman. The effect of scratches and of various workshop finishes upon the fatigue strength of steel.

Aeronautical Research Committee, Reports and Memoranda, No. 860 (M. 20), Mar., 1923, London, 1923, pp. 28, ill.

Thompson, William H. Aviation and civic development.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, p. 240.

Thoret, Joseph. Le vol de 7 h. 03 du Lieutenant Thoret.

L'Aérophile, 31e année, Nos. 1-2 (ler-15 jan. 1923), Paris, p. 4.

- See Blanchet, Georges: Aviateurs contemporains. Joseph Thoret.

Thotjvenot. La restitution des photographies d'avion. Paris, 1923.

Thumin, G. See Rettew, H. F., and G. Thumin: Tests on riveted joints in sheet duralumin.

Thurn, A. Der funktelegraphische Wetter- und Zeitzeichendienst. 1923, pp. 82, ill.

Timing. See Warner, Edward P. : The timing of airplane speeds. Tinker, Clifford Albion. Both charm and profit in touring by air.

TJ. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 37-40, ill.

- On top of the world by September 30, 1923. United States Navy's rigid

airship ZR-1 to make the epochal trip to the North Pole.

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, pp. 157-160, ill.

Tinson, C. W. Constructional design of aeroplanes.

Proceedings of the Institution of Aeronautical Engineers, No. 4,1922, London, pp. 3-26.

Tissandier, Paul. Conférence de la Fédération Aéronautique Internationale à Gothembourg du 8 au 12 août 1923.

L'Aérophile, 31e année, Nos. 19-20 (ler-15 Oct. 1923), Paris, pp. 314-316, ill.

- Marc Seguin (1786-1875). Ses travaux sur l'aéronautique.

L'Aérophile, 31e année, Nos. 13-14 (ler-15 juil. 1923), Paris, pp. 205-206, port.

Tissandieb, Paul. Ravitaillement des aéroplanes en vol.

L'AérophUe, 31e année, Nos. 17-18 (ler-15 sept. 1923), Paris, p. 260, ill.

- See La Vaulx, Henri de, Paul Tissander et Charles Dollfus. L'aéronautique des origines à 1922.

Toohey, B. H. "The failure of the airplane."

U. S. Air Service, Vol. 8, No. 2 (Feb. 1923), Washington, pp. 13-14.

Topography. See Cassinis, G.: Il rilevamento topografico dagli aerei.

- See Maps; Photogrammetry; Photography.

Toussaint. Application de la théorie des tourbillons à l'aérodynamique des ailes sustentatrices.

L'AérophUe, 31e année, Nos. 1-4 (ler-15 jan.-ler-15 fêv. 1923), Paris, pp. 5-9, 39-46, ill., diagr.' Voir Aérophile, Nos. 19-20 du ler-15 octobre, 21-22 du ler-15 novembre, 23-24 du ler-15 décembre 1922.

Toussaint, A. Note sur l'influence de la courbure relative de la ligne moyenne dans les profils d'ailes sustentatrices.

La Tech. Aéron., 14e année, n. s., Nos. 24-25 (15 oct.-15 nov. 1923), Paris, pp. 780-788, 807818, ill.

Toussaint, A., W. Margoulis et R. Pris. Répertoire d'aérodynamique expérimentale.

Paris, Payot et Cie, 1923, pp. 160.

Training. See France. Ministère de la Guerre (Direction de l'aéronautique) : Guide pour les examinateurs des candidats aux brevets de mécanician d'aéronautique et aux certificats d'instruction technique.

Transcontinental flight. America first in the air.

Aeronautical Digest, Vol. 2, No. 6 (June 1923), New York, pp. 403-415, ill.

- Army-Fokker crosses continent in 27 hours.

Aviation, Vol. 14, No. 20 (May 14, 1923), New York, pp. 524-526, ill.

- Epoch-making flight.

U. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, pp. 9-13, ill.

- History's longest hop—across America.

Literary Digest, Vol. 77 (May 19, 1923), New York, pp. 38-44, ill., map.

- The Marine Corps flight from coast to coast.

Aviation, Vol. 14, No. 23 (June 4, 1923), New York, pp. 607-608.

- Transcontinental flight from dawn to dusk.

Aeronautical Digest, Vol. 3, No. 2 (Aug. 1923), New York, p. 90.

Treaties. See Laws and regulations: Convention for the regulation of aerial navigation, done at Paris, October 13, 1919.

Triplanes. See Parnall: The Parnall "Possum" triplane.

Trnka. Civilian aviation in Czechoslovakia.

Flight, Vol. 15, No. 51 (Dec. 20, 1923), London, pp. 764-766, ill.

Tuckerman, L. B. Notes on aerodynamic forces on airship hulls.

National Advisory Committee for Aeronautics, Technical Notes No. 129, Mar. 1923, Washington, pp. 27, diagrs.

Turnbtjll, W. R. Consolidated wood. A new material for various industries. Journ. Eoy. Aer. Soc, Vol. 27, No. 151 (July 1923), London, pp. 342-347.

Turner, C. C. Wind flying.

Edinburgh Eeview, Vol. 238 (July 1923), New York, pp. 104-117.

u

Udet. An interesting three-seater.

The Aeroplane, Vol. 25, No. 24 (Dec. 12, 1923), London, p. 572, ill.

- The new Udet commercial monoplane. A German three-seater of very-clean design.

Flight, Vol. 15, No. 47 (Nov. 22, 1923), London, pp. 709-710, ill., diagr.

- The Udet sporting two-seater.

Flight, Vol. 15, No. 9 (Mar. 1,1923), London, pp. 122-123, ill.

Uniforms. Need for new Air Service uniform.

U. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 33-34.

- Need for new uniforms in the Air Service.

U. S. Air Service, Vol. 8, No. 6 (June 1923), Washington, pp. 33-34.

United States. An American around-the-world flight.

Flight, Vol. 15, No. 50 (Dec. 13, 1923), London, p. 755, ill.

- The American Navy-Wright Schneider cup challenger.

Flight, Vol. 15, No. 39 (Sept. 27, 1923), London, p. 575, ill.

- The past year and American aviation. Chronology of 1922 prepared by

Aeronautical Chamber of Commerce gives outstanding aviation achievements.

Aviation, Vol. 14, No. 1 (Jan. 1, 1923), New York, pp. 14-15.

- Regarding American airplane speed records.

Aviation, Vol. 14, No. 18 (Apr. 30, 1923), New York, pp. 466-467., ill.

- United States captures duration and distance records.

Aviation, Vol. 14, No. 17 (Apr. 23, 1923), New York, p. 449, ill.

- United States has greatest year in world aviation.

Aeronautical Digest, Vol. 2, No. 1 (Jan. 1923), New York, pp. 16-19, ill.

-- See C. L. : La France et les États-Unis à l'assaut des records.

- See M. L.: L'effort Américain pour les records mondiaux.

- »See M. L.: Les nouveaux records de vitesse aux États-Unis.

- »See Military aeronautics: Air Service makes impressive mobilization test.

- »See Moffett, William A.: Aviation progress in America.

- »See Moffett, William A.: The United States Naval Air Service.

- »See Records: America holds most world records.

- »See Rules: American air-traffic rules.

United States Air Service, War Department. Aeronautical bulletin . . . Washington, Government Printing Office, 1923. . . .

Published in the Airways Section, Office of the Chief of Air Service, Washington, D. C.

- Aerostatic tables. May 1, 1920.

Washington, Government Printing Office, 1922, pp. 14, tabl.

- Aircraft development since the armistice : Pt. I, Airplanes. Pt. II, Armament. Pt. II, Engines. Pt. IV, Equipment. Miscellaneous reports, Nos. 89, 90, 91, and 94, prepared by Engineering Division, Air Service, McCook Field, Dayton, Ohio, June 1922.

Air Service Information Circular, Vol. 5, No. 402, Jan. 15, 1923, pp. 34, ill.

- Handbook of instructions for airplane designers. Revision March 1923.

Dayton, Ohio, McCook Field, [19]23, pp. 92, ill.

United States Bureau of Aeronautics, Navy Department. Annual report. 1921-22.

Washington, Government Printing Office, 1922.

United States Bureau of Aeronautics, Navy Department. Bureau of aeronautics manual. 1923.

N. Aer. 101. Manual of Bureau of Aeronautics, Washington, Government Printing Office, 1923, pp. vi, 122.

- Catalogue of assemblies and details of Curtiss D-12 engine without hand

starter. Issued by Bureau of Aeronautics, Navy Department.

Washington, Government Printing Office, 1923, pp. 12.

- Naval aviation. The eyes of the fleet.

Washington, Government Printing Office, 1923, pp. 13, ill.

—— . Syllabus for the training of naval aviators and naval aviation pilots. Airplane. Approved March, 1922. Reissued March 1, 1923.

Washington, Government Printing Office, 1923, pp. ii, 30, diagrs.

United States Bureau of Foreign and Domestic Commerce, Department of Commerce. The use of statistics of rubber-goods exports. Prepared in the Rubber Division.

Washington, Government Printing Office, 1923, pp. ii, 10, tabl. Trade Information Bui letin No. 172.

United States Bureau of the Census. Census of manufactures: 1921. Engines and water wheels, locomotives,' and aircraft.

Washington, Government Printing Office, 1923, pp. 22, tahls.

United States Congress. See Laws and Regulations u Law memoranda upon civil aeronautics.

United States Superintendent of Documents. Army and militia, aviation and pensions; list of publications relating to above subjects for sale by Superintendent of Documents, Washington, D. C.

Washington, Government Printing Office, 1922, pp. 37.

UPSiDE-down flying. Upside-down flying.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 17, London, p. 424.

Upson, Ralph H. Aircraft as an engineering problem.

Michigan Technic, Vol. 36, No. 3 (Mar. 1923), Ann Arhor, Mich., pp. 5-7, ill.

- The airship for long-haul heavy-traffic service.

Mechanical Engineering, Vol. 45, No. 4 (Apr. 1923), New York, pp. 235-237, ill.

- Metal-clad versus fabric-covered rigid airships.

Aviation, Vol. 15, No. 24 (Dec. 10, 1923), New York, pp. 702-703.

Urqtjhart, John W. Steel thermal treatment. London, 1923. Crosby, Lockwood & Son.

Ushakopp, K. A. Aerodynamical balance of the "Etalon" type.

Scientific-Technical Department of the Supreme Council of National Economy, No. 33, Transactions of the Central Aero-Hydrodynamical Institute, No. 5, Moscow, 1924, pp. 23, ill.

Utkin-Egoroff, W. W. Instructions for assembling the windmill blades.

Transactions of the Central Aero-Hydrodynamical Institute, No. 1. TJ. S. S. E. Scientific-Technical Department of the Supreme Council of National Economy, No. 23, Moscow, 1923, pp. 6-7, [8-11], ill.

V

Vaillot, G. Les mot'eurs Diesel et les moteurs semi-Diesel. Types fixes et types marines. ThSorie, description, combustibles, construction, conduite, avaries entretien.

Paris, Libr. Dunod, 1923, Vol. 1, pp. xii-610; Vol. 2, pp. 374, ill.

Valves. Silcrome valves.

Aviation, Vol. 14, No. 15 (Apr. 9, 1923), New York, p. 400.

Van Heemstede, Jonkheer van den Berch. Transport du courrier.

International Air Congress, London, 1923, Report, London, 1923, pp. 679-681.

Van Nostrand, P. E. Why airships?

Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, pp. 175-177, 212, ill.

Van Zandt, J. Parker. Flying from Spain to Brazil—4,019 miles. TJ. S. Air Service, Vol. 8, No. 5 (May 1923), Washington, pp. 27-29.

- Greatest air meet in history of aviation.

TJ. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, pp. 25-28.

- The 1923 Pulitzer air classic.

U. S. Air Service, Vol. 8, No. 11 (Nov. 1923), Washington, pp. 15-21.

- See Gregg, Willis Ray, and J. Parker Van Zandt: The wind factor in flight.

An analysis of one year's record of the air mail.

Vatjville. The French meeting at Vauville.

Aer. Eng. Suppl. The Aeroplane, Vol. 25, No. 9 (Aug. 29, 1923), London, p. 238, ill.

—- Vauville gliding meet.

Aviation, Vol. 15, No. 14 (Oct. 1, 1923), New York, p. 399.

- The Vauville light plane and glider meeting.

Flight, Vol. 15, No. 34 (Aug. 23, 1923), London, pp. 505-506, diagr.

- See M. S. : Le congrès expérimental pour planeurs et moto-aviettes à

Vauville.

Veit, Sidney B. The international air conference at Gothenburg.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 258-259, 287.

- The Lafayette Escadrille memorial association.

Aeronautical Digest, Vol. 2, No. 3 (Mar. 1923), New York, pp. 180-181, ill.

Ventotj-Dtjclatjx, L. Les moteurs à deux temps; moteurs à explosion et à combustion à essence et à carburants lourds destinés à l'automobilisme et à l'aviation.

Paris, Libr. Dunod, 1923, pp. 234.

Troisième édition, revue et augmentée par G. Lienhard.

Verdtjzio, Rodolfo. Sulla sistemazione del motore a bordo dei velivoli.

Rend. Istituto Sper. Aeron., Anno 11, Ser. 2, N. 2 (15 Agosto 1923), Roma, pp. 73-86, ill.

- See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Mar-

goulis, R. Verduzio, Richard Katzmayr, E. B. Wolff, and A. F. Zahm: Standardization and aerodynamics.

Verville, Alfred. See Mitchell, William, Clayton L. Bissell, and Alfred Verville: Report of inspection trip to France, Italy, Germany, Holland, and England, made during the winter of 1921-1922; technical supplement.

Vetschinkin, V. P., and N. G. Tchentsoff. Plane pendulum with two degrees of freedom, applied for determination of the height of the centre of gravity and of the moment of inertia of a solid.

Scientific-Technical Section S. C. N. E., No. 10.* Transactions of the Central Aero-Hydro-dynamical Institute, No. 3, Moscow, 1923, pp. 14, ill.

Vickers, Charles. Metals and their alloys.

New York, Henry Carey Baird & Co. (Inc.), 1923, 800 pp., 110, ill.

- The Vickers "Viget" light 'plane.

Flight, Vol. 15, No. 38 (Sept. 20, 1923), London, pp. 559-562, ill.

Vinal, G. W. Batteries for aeroplane service.

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, p. 162, ill.

Vincent. Les avions sanitaires.

La Tech. Aéron., 14e année, n. s., No. 20 (15 Juin 1923), Paris, pp. 648-657, ill.

Vincent, J. G. Packard model 1551 300-horsepower airship engine. Aviation, Vol. 14, No. 26 (June 25,1923), New York, pp. 686-687, ill.

Vinci, Leonardo da. See Hart, Ivor B.: Leonardo da Vinci as a pioneer of aviation.

Volla, F. See Porro, F., e F. Volla: La fotografia aerea.

Volmehanqe. La navigation aérienne en France.

International Air Congress, London, 1923, Report, London, 1923, pp. 748-766.

Volmerange, A. Après la Salon de 1922—Les équipements et les aménagements de bord.

Aéronautique, T. 5, No. 45 (fév. 1923), Paris, pp. 62-69, ill.

- La restitution des photographies aérienne.

Aéronautique, T. 5, No. 54 (Nov. 1923), Paris, pp. 436-472, ill.

Voskuil, B. L. Machine installatie van het verkeershoogtevliegtuig. Ingenieur, Vol. 38, No. 20 (May 19,1923), The Hague, pp. 390-393, ill.

Vuia, T. Les machines à ailes rotatives et les hélicoptères.

La Tech. Aéron., 14e année, n. s., No. 24 (15 oct. 1923), Paris, pp. 766-779, ill.

w

Wackett, L. J. The launching of aircraft from ships.

Journ. Roy. Aer. Soc, Vol. 27, No. 155 (Nov. 1923), London, pp. 553-556.

Waco. Waco "six" three-seater.

Aviation, Vol. 15, No. 7 (Aug. 13, 1923), New York, p. 189, ill.

Wade, Herbert Treadwell. Aeronautics.

The New International Year Book, 1922, New York, 1923, pp. 5-17.

Wainwright, J. Mathew. The situation in the Army Air Service. TJ. S. Air Service, Vol. 8, No. 4 (Apr. 1923). Washington, p. 19.

Walser, A. A. Air power.

Nineteenth Century and After, Vol. 93, No. 654 (Apr. 1923), New York, pp. 598-611.

Warner, Edward P. Commercial aviation in 1923.

Aviation, Vol. 15, No. 24 (Dec. 10, 1923), New York, pp. 766-768.

Warner, Edward P. The design of commercial airplanes.

Journal of the Society of Automotive Engineers, Vol. 12, No. 2 (Feb. 1923), New York, pp. 155-159.

- The effect of bow stiffeners in nonrigid airships.

International Air Congress, London, 1923, Report, London, 1923, pp. 943-946.

- Estimation of weight of aeroplane parts.

Journ. Roy. Aer. Soc. Vol. 27, No. 145 (Jan. 1923), London, pp. 26-34.

- The fairing of airfoil contours.

National Advisory Committee for Aeronautics, Technical Notes No. 146, June 1923. Washington, pp. 7, diagrs.

- Notes on the longitudinal stability, controllability, and maneuverability

of airplanes.

International Air Congress, London, 1923, Report, London, 1923, pp. 319-329, diagr.

- The timing of airplane speeds.

Aviation, Vol. 14, No. 1 (Jan. 1, 1923), New York, pp. 16-17.

- Wind-tunnel tests of five strut sections in yaw.

National Advisory Committee for Aeronautics, Technical Notes No. 167, Nov. 1923, Washington, pp. 7, diagrs.

61287—26-10

Warner, John A. C. An optical altitude indicator for night landing.

Aerial Age, Vol. 16, No. 6 (June, 1923), New York, pp. 274-276, ill. Aviation, Vol. 14, No. 11 (Mar. 12,1923), New York, pp. 290-291, ill. Flight, Vol. 16, No. 19 (May 10, 1923), London, pp. 265-266, ill.

National Advisory Committee for Aeronautics, Technical Notes No. 123, Jan. 1923, Washington, pp. 5, ill.

Watter, Michael. The stream tunnel.

Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, p. 22.

Watts, H. C. Air-screw research in Great Britain.

International Air Congress, London, 1923, Report, London, 1923, pp. 422-430.

- See International Air Congress: International Air Congress.

Wead, F. W. The Schneider cup race for 1923.

Aeronautical Digest, Vol. 3, No. 3 (Sept. 1923), New York, pp. 145-146.

Weather Bureau. The Weather Bureau and aviation.

Aviation, Vol. 14, No. 2 (Jan. 8,1923), New York, pp. 46-47.

- See Gregg, Willis Ray: What the Weather Bureau is doing for aviation.

- See Marvin, Charles F.: The Weather Bureau and aviation.

Weaver, D. B. Impact test of a JN-4 tail skid and landing chassis.

U. S. Air Service Information Circular, Vol. 5, No. 409 (Apr. 1, 1923), Washington, Government Printing Office, pp. 3, ill.

- Static test of the Cox-Klemin TW-2 training airplane, A. S. No. 68540.

V. S. Air Service Information Circular, Vol. 5, No. 437 (May 1,1923), Washington, Government Printing Office, pp. 24, ill.

Weaver, E. R. and S. F. Pickering. An airship slide rule.

National Advisory Committee for Aeronautics-, Report No. 160, July 19, 1923, Washington, Government Printing Office, 1923, pp. 12, ill. diagr.

Weeks, John W. Military and commercial aviation.

Aeronautical Digest, Vol. 2, No. 2 (Feh. 1923), New York, pp. 68, 145.

Wegener, Kurt. Vom Fliegen.

Berlin, R. Oldenbourg, 1922, pp. iv, 104, ill.

- See Moedebeck: Moedebecks Taschenbuch für Flugtechniker und Luftschiffer bearb. u. hrsgeg. v. R. Süring u. K. Wegener.

Weight. Construction weights of foreign civil airplanes.

Aviation, Vol. 14, No. 10 (Mar. 5, 1923), New York, p. 265.

- See Warner, Edward P.: Estimation of weight of aeroplane parts.

Weiss, Joseph Bernard. Gliding and soaring flight. Fully describes and illustrates the whole subject, including the latest experiments.

London, Sampson Low, Marston & Co., 1923, pp. 164, ill.

Weiss, Pierre. Notes pour servir à l'histoire des énergies de l'air. I. Les coeurs horizon. II. L'ancre de miséricorde. Paris, Berger-Levrault.

- Le revitaillement d'un avion en cours de vol.

L'Aérophile, 31e année, Nos. 23-24 (ler-15 déc. 1923), Paris, pp. 358-359, ports.

Welding. Welding and cantilever wings.

The Aeroplane, Vol. 25, No. 24 (Dec. 12, 1923), London, p. 568.

Werenskiold, W. Mean monthly air transport over the north Pacific Ocean. Kristiania, 1922, pp. 55.

Werner, H. Der Metall-Jagdeindecker, Type "Dornier-Falke." Motorwagen, Bd. 26, No. 7 (Mar. 10, 1923), Berlin, pp. 102-104, ill.

Whitney, Albert W. Why there is a need for industrial standardization. Aerial Age, Vol. 16, No. 6 (June 1923), New York, p. 272.

Whittle, George V. Employment and specifications of pilot balloons. Aviation, Vol. 14, No. 17 (Apr. 23, 1923), New York, p. 448.

Wibatjlt. A new French all-metal aeroplane. The Michel Wibault 3 C. 1.

Flight, Vol. 16, No. 22 (May 31, 1923), London, pp. 289-290, 111.

- The Wibault monoplane fighter.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 22 (May 30, 1923), London, p. 399, lli.

- See R. D.: L'avion de chasse monoplan Wibault 3 C-l.

Wicks, Z. W. Helium and its relation to lighter-than-air ships. Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 404-405.

Weiselsberger, Carl. Air resistance measurements on actual airplane parts.

National Advisory Committee for Aeronautics, Technical Notes No. 169, Nov. 1923, Washington, pp. 11, tahls, diagrs.

- Experiments with a built-in or fuselage radiator.

National Advisory Committee for Aeronautics, Technical Notes No. 141, May 1923, Washington, pp. 12, tabls., diagrs.

- See Göttingen. Aerodynamische Versuchsanstalt zu Göttingen.

Wiesinger, Kurt. Das Wiesinger-Luftschiff, ein Glied in der Entwicklungsreihe der Lenkballone. 1923, pp. 78, ill.

Wigand, Albert, and Heinrich Koppe. Ein neuer Flugzeug-Meteorograph.

Zeitschr. Flugt. Motorluftsch. Bd. 14, No. 13-14 (July 26, 1923), Berlin, pp. 106-108, ill.

Williams, D. H. Pressure plotting on fin and rudder of a model of R. 32.

Aer. Res. Com., Reports and Mem., No. 808 (Ae. 60), Mar., 1922, London, 1923, pp. 47, tabls., diagrs.

- See Jones, R., D. H. Williams, and A. H. Bell: Experiments on a model

of rigid airship R. 32, together with a comparison with the results of full scale turning trials and a consideration of the stability of the ship

- See Jones, R., and D. H. Williams: Experiments on a model of rigid

airship. R. 38.

- See Jones, R., D. H. Williams, and A. H. Bell: Experiments on model of

a rigid airship of new design.

Williams, Alford J. How I won the Pulitzer race.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, pp. 315-316, ill.

- See Pulitzer: Lieut. A. J. Williams wins Pulitzer trophy race.

Williamson, F. H. Air mails.

International Air Congress, London, 1923, Report, London, 1923, pp. 672-678.

- Future of air-mail services.

Flight, Vol. 15, No. 31 (Aug. 2, 1923), London, p. 462.

Wilson, Edwin Bidwell. Dynamic stability as affected by the longitudinal moment of inertia.

National Advisory Committee for Aeronautics, Report No. 172, Oct. 1, 1923, Washington, Government Printing Office, 1923, pp. 8.

Wilson, J. A. The control of civil aviation.

Mechanical Engineering, Vol. 45, No. 10 (Oct. 1923), New York, pp. 571-576, 613, ill.

Wimperis, H. E. Navigational equipment for long-distance flights.

International Air Congress, London, 1923, Report, London, 1923, pp. 756-765, ill., diagrs., map.

Wimperis, H. E. On a new means of ascertaining the mean pressure in a heat engine.

Aeronautical Research Committee, Reports and Memoranda, No. 803 (E. 4), June, 1922, London, 1922, pp. 10, ill.

Wind. See Gregg, Willis R., and J. Parker Van Zandt: The wind factor in flight: An analysis of one year's record of the air mail.

- Wind energy and the aeroplane.

The Aeroplane, Vol. 25, No. 25 (Dec. 19, 1923), London, p. 586.

- See Idrac, P.: Contribution à l'étude des vents du large.

■-■ See Krassovsky, N., and G. Sabinin: Problems of utilizing of energy of

wind.

Wind tunnels. The No. 2 7-foot wind channel at the Royal Aircraft Establishment.

■-■ See Bacon, David L. : Model supports and their effect on the results of

wind tunnel tests.

Aeronautical Research Committee, Reports and Memoranda, No. 847 (Ae. 90), Nov. 1922, London, 1923, pp. 4, diagr.

- See Baulin, K. : Experimental study on air channels.

- See Branham, J. C: The new wind tunnel at McCook Field.

- See Cowley, W. L.: Wind-tunnel work at the N. P. L.

- See Martin, Jack: Wind tunnels.

- See Miller, William H.: The efficiency of a wind tunnel.

- See National Advisory Committee for Aeronautics: National Advisory

Committee for Aeronautics compressed-air wind tunnel.

- See National Physical Laboratory: The work of the National Physical

Laboratory wind tunnels.

- See Watter, Michael: The stream tunnel.

Windmills. See Krassovsky, N. W. : A new blade for the Russian windmill.

- See Munk, Max Michael: General theory of windmills.

- See Utkin-Egoroff, W. W.: Instructions for assembling the windmill

blades.

Wing cutting. See Ford, James B.: The Nichols wing-cutting equipment.

Wing ribs. The strength of wing ribs.

U. S. Air Service Information Circular, Vol. 5, No. 443 (May 1, 1923), Washington, Government Printing Office, pp. 18, ill. '

Wings. American success with all-metal wings. Novel methods of construction.

Flight, Vol. 15, No. 6 (Feb. 8,1923), London, pp. 82-84, ill.

- Successful design of light-weight metal wings. Metal wing frames built

for Navy HS-3 flying boat give excellent results in tests at naval factory.

Aviation, Vol. 14, No. 2 (Jan. 8, 1923), New York, pp. 38-41, ill.

- Variable surface wings for variable speed airplanes.

Scient. Amer., Vol. 128 (Apr. 1923), New York, p. 243, ill.

- See Aeronautical Research Committee : Test of ten aerofoil sections for

metal air screws, by I. L. Peatfield. March 1922.

- See Klemperer, W., and T. Bienen: Comparing aerodynamical properties

of wings.

- See Merrill, A. A.: Simple chart for choosing a wing surface.

- See Miller, B. A.: Airplane wing fittings.

Wings. See Münk, Max Michael, and Gunther Cario: Downwash of airplane wings.

- See Niles, A. S. : Design of internally braced biplane wings.

- See Page, Frederick Handley: The slotted wing.

- See Parkin, J. H., H. C. Crane, and J. E. S. MacAllister: Wing-tip research.

- See Radiators: Making the airplane radiator and wing in one.

- See Sellers, Matthew B. : A comparison of some modern wing profiles.

- See Toussaint, A. : Note sur l'influence de la courbure relative de la ligne moyenne dans les profils d'ailes sustentatrices.

Winkler, O. Entwerfen von leichten Verbrennungsmotoren, insbesondere von Luftfahrzeugmotoren. 1922, pp. xii, 305, ill.

Winslow, Samuel E. Civil aeronautics.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, p. 107.

Winslow, Samuel H. See Civil aviation: The civil aeronautics act of 1923. Abstract of bill introduced in the House by the Hon. Samuel H. Winslow, of Massachusetts.

Winter flying. See Angstrom, Tord: Some technical problems and experiences concerning winter flying.

Winters, S. R. Lightning protector for balloons and airships. Aviation, Vol. 14, No. 17 (Apr. 23,1923), New York, pp. 446-447.

Wireless. The wireless equipment of aircraft.

Engineer, Vol. 135, No. 3504 (Feb. 1923), London, pp. 192-196, ill.

- See Bellini, E. : Characteristics of airplane antennas.

Witz, Aimé. Traité théorique et pratique des moteurs à gaz, à essence et à pétrole.

Paris, Albin Michel, 1923, (2 vols.) pp. 1300.

WoLD-Chamberlain. Wold-Chamberlain Field dedicated.

U. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, pp. 41-42.

Wolff, E. B. See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Margoulis, R. Verduzio, Richard Katzmayr, E. B. Wolff, and A. F. Zahm: Standardization and aerodynamics.

Wood. Comparative strength of air-dried and kiln-dried wood. Aerial Age, Vol. 16, No. 1 (Jan. 1923), New York, p. 29.

Wood, H. R. A. E. electrical indicator for high speed internal combustion engines, also pressure gauge for maximum pressures.

Aeronautical Research Committee, Reports and Memoranda, No. 807 (E. 5) (Apr. 1922), London, 1922, pp. 12, ill., diagrs.

Wood, R. McKinnon. Control of aeroplanes at low speeds.

International Air Congress, London, 1923, Report, London, 1923, pp. 299-307.

- The reliability of model data.

International Air Congress, London, 1923, Report, London, 1923, pp. 339-349.

Woodhouse, Henry. Greatest race of all time.

Illustrated World, Vol. 38 (Jen. 1923), Chicago, pp. 678-683, 111.

Woods. See Baumann, Richard: Determination of the value of wood for structural purposes.

Woods. See Boyce, J. C: Decays and discoloration in airplane woods.

- See Liptrot, R. N.: Three-ply and its uses in aircraft construction.

- See Stout, William B.: Wood versus metal for airplanes.

- See Turnbull, W. R.: Consolidated wood. A new material for various industries.

Work, Hubert. Speeding the mails.

Aerial Age, Vol. 16, No. 3 (Mar. 1923), New York, pp. 110-111, ill. ' -

Wren. The "Wren" light airplane. ' ■

Engineering, Vol. 116. No. 3017 (Oct. 26, 1923), London, pp. 526-527, ill. Flight, Vol. 15, No. 34 (Aug. 23, 1923), London, pp. 503-504, ill.

Wright. A new power plant. Wright model T-3 aviation engine.

Aviation, Vol. 15, No. 14 (Oct. 1,1923), New York, p. 409, ill.

- Points of particular interest in the Wright all-metal pursuit plane.

Aerial Age, Vol. 16, No. 5 (May 1923), New York, pp. 215-217, ill.

- The story of an endurance test of a remarkably reliable engine.

Aerial Age, Vol. 16, No. 7 (July 1923), New York, pp. 320-321, ill.

- Wright aeronautical engines.

Aviation, Vol. 15, No. 20 (Nov. 12, 1923), New York, p. 601.

- The Wright all-metal pursuit airplane.

Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, pp. 364-366, ill.

- Wright E-4 engine.

U. S. Air Service, Vol. 8, No. 5 (May, 1923), Washington, pp. 43-44, ill.

- Wright T-2 and T-3 engines.

U. S. Air Service, Vol. 8, No. 9 (Sept. 1923), Washington, pp. 32-33.

Wright, Burdette S. National airways.

Aeronautical Digest, Vol. 2, No. 4 (Apr. 1923), New York, pp. 247-250, 292, ill.

- National airways coming.

U. S. Air Service, Vol. 8, No. 3 (Mar. 1923), Washington, pp. 7-10.

Wright, Maurice. Flying with low power.

Flight, Vol. 15, No. 20 (May 17, 1923), London, pp. 269-270.

Wright, Orville. How we made the first flight.

Aviation, Vol. 15, No. 25 (Dec. 17, 1923), New York, pp. 737-741, ill.

Wright, Wilbur. The Wilbur Wright lecture.

Aer. Eng. Suppl. The Aeroplane, Vol. 24, No. 23 (June 6, 1923), London, pp. 419-420.

Wright, Wilbur and Orville. The Wright brothers' airplane.

Aviation,Vol. 15, No. 25 (Dec. 17, 1923), New York, pp. 732-737, ill. U. S. Air Service, Vol. 8, No. 12 (Dec. 1923), Washington, pp. 26-32, ill.

Wright brothers. See Flint, Charles R.: Early reminiscences of the Wright brothers.

Wright engine. The story of a remarkable engine endurance test. Wright E-4 engine passes 300-hour test with full power.

Aviation, Vol. 14, No. 18 (Apr. 30, 1923), New York, p. 475, ill.

Wulpiller, Robert. Segelflug.

Schweizerische Bauzeitung, Bd. 82, No. 15 (Oct. 13, 1923), Zurich, Switzerland, pp. 188-189, ill.

Wyatt, B. H. The eclipse of the sun. Observations entirely impossible on account of climatic conditions, except from the airplanes at high elevations.

Aeronautical Digest, Vol. 3, No. 5 (Nov. 1923), New York, pp. 344-345.

Wyman, W. W. Aeronautical lubrication.

Aeronautical Digest, Vol. 2, No. 2 (Feb. 1923), New York, pp. 108, 149.

z

ZR-l. Flight of the ZR-1.

Aeronautical Digest, Vol. 3, No. 4 (Oct. 1923), New York, pp. 232-236, 282-283, ill.

- First trial flight of United States naval airship ZR-1.

Aviation, Vol. 15, No. 11 (Sept. 10, 1923), New York, p. 311.

- Meaning of ZR-1 to the aeronautic world.

Current Opinion, Vol. 75 (Nov. 1923), New York, pp. 602-603, ill.

- Naval airship ZR-1 visits New York City.

Aviation, Vol. 15, No. 13 (Sept. 24, 1923), New York, pp. 362-364, ill.

- Navy's giant airship design approved.

Aerial Age, Vol. 16, No. 1 (Jan. 1924), New York, p. 36.

- Navy's new silver whale of the air, the dirigible ZR-1.

Literary Digest, Vol. 78 (Sept. 22, 1923), New York, pp. 42-46, ill.

- ZR-1 makes successful nights.

XJ. S. Air Service, Vol. 8, No. 10 (Oct. 1923), Washington, pp. 15-17, ill.

- ZR-1 makes successful 2,200-mile flight.

Aviation, Vol. 15, No. 16 (Oct. 15, 1923), New York, pp. 490-491.

- ZR-1, the first American-built rigid airship.

Flight, Vol. 15, No. 48 (Nov. 29, 1923), London, pp. 721-723, ill.

- See Chase, Herbert: Navy's new dirigible, ZR-1, completes trial flight

successfully.

- See Pagon, W. Watters: General theory of stresses in rigid airship ZR-1.

- See Schmidt, F. E.: Building the large Navy dirigible ZR-1.

- See Tinker, Clifford A.: On top of the world by September 30, 1923:

United States Navy's rigid airship ZR-1 to make the epochal trip to the North Pole.

ZR-3. American Zeppelin ZR-3.

Living Age, Vol. 319 (Nov. 17,1923), Boston, pp. 317-319.

- Characteristics of United States naval airship ZR-3.

Aviation, Vol. 14, No. 14 (Apr. 2, 1923), New York, p. 366, diagr.

- Flight of ZR-3 from Germany to United States.

Aerial Age, Vol. 16, No. 7 (July, 1923), New York, p. 331.

- World's largest airship nearing completion.

Aviation, Vol. 15, No. 26 (Dec. 24,1923), New York, pp. 774-776, ill.

Zahm, Albert Francis. The aerodynamic plane table.

National Advisory Committee for Aeronautics, Report No. 166, Aug. 22, 1923, Washington, Government Printing Office, 1923, pp. 11, ill.

Zahm, Albert Francis. Analysis of airplane factors.

Journal of the Franklin Institute, Vol. 195, No. 3 (Mar. 1923), Philadelphia, pp. 289-302, ill.

- See Knight, William, L. Prandtl, von Karman, G. Costanzi, W. Mar-

goulis, R. Verduzio, Richard Katzmayr, E. B. Wolff, and A. F. Zahm Standardization and aerodynamics.

Zavattiero, Enrico. Sul comportamento elastico degli aneroidi.

Comm. Aeron. Rend. Teen., Anno 11, N. 4 (15 Die. 1923), Roma, 1923, pp. 221-227, tabls.

Zénith. Le military "Zénith."

L'Aêrophile, 31e année, Nos. 13-14 (ler-15 Juil. 1923), Paris, p. 200.

- See R. D. : La coupe de consommation d'aviation Zénith.

Zenith cup. Zenith cup competition.

Flight, Vol. 16, No. 30 (July 26, 1923), London, p. 440.

Zeppelin. Coming—one new Zeppelin, our only spoils of war. Literary Digest, Vol. 77 (Apr. 21, 1923), New York, pp. 58-60.

- Goodyear Co. acquires Zeppelin airship patents.

Aviation, Vol. 15, No. 20 (Nov. 12,1923), New York, pp. 599-600.

- The Zeppelin organization.

Aeronautical Digest, Vol. 2, No. 5 (May, 1923), New York, pp. 337-340, 111.

Zeppelins. Zeppelin passenger airship LZ-126.

Engineer, Vol. 136, No. 3545 (Dec. 7, 1923), London, pp. 604-607, ill.

- Zeppelin-luftschiffe.

Nachr. Luftf., jahrg. 3, nr. 52 (31 Dez. 1922), Berlin, pp. 646-647.

- See Goody ear-Zeppelin: The Goodyear-Zeppelin airship deal.

- See Litchfield, P. W.: The Goodyear Tire & Rubber Co. has entered into

an agreement to control the Zeppelin rights for the United States.

Zimmerman, Paul G. The aeromarine all-metal hull flying boat.

Metal Industry, Vol. 21, No. 12 (Dec. 1923), New York, pp. 471-473, ill.

- Aeromarine high-efficiency wing curve as applied to United States model

WM mail airplane.

Aviation, Vol. 14, No. 1 (Jan. 1,1923), New York, p. 12, ill.

- America builds and operates the first all-metal hull flying boat.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, pp. 422-423, ill.

- Flying boats for the Coast Guard Service.

Aeronautical Digest, Vol. 3, No. 6 (Dec. 1923), New York, p. 424.


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