BIBLIOGRAPHY OF AERONAUTICS — BROCKETT 373 



Gradenwitz, Alfred. A life preserver for balloonists. 



Scient. Amer., Vol. 100, No. 15 (April 1909), New York, p. 282, ills. 2. S (5421 



. An aeronautical observatory. The elaborate equipment of a model in- 

 stitution. 



Scient. Amer. Suppl., Vol. 64, No. 1645 (July 13, 1907), New York, pp. 24- 

 26. S (5422 



. An interesting German flying machine. Developed by J. Hofman of 



Berlin. 



Scient. Amer., Vol. 96, No. 12 (March 23, 1907), New York, pp. 252-253, figs. 

 6. S (5423 



. Application du gyroscope aux aSronats. 



La Conq. I'Air, 5« annfie. No. 4 (f6v. 1908), Bruxellea, p. 5. S (5424 

 . Captive balloons in the German army and navy. 



Scient. Amer., Vol. 97, No. 2 (July 13, 1907), New York, pp. 30-31. S (5425 



. The new Nemethy flying machine and the principle of its construction. 



Scient. Amer., Vol. 91, No. 2 (July 9, 1904), New York, p. 31, ills. 2. S (.5426 



. The Parseval dirigible airship. 



Scient. Amer., Vol. 95, No. 19 (Nov. 10, 1906), New York, pp. 341-342, ill. S (5427 



Graetz, L. Die drahtlose Telegraphie. 



111. Aer. Mitt., VIII Jahrg., 2 Heft (Feb. 1904), Strassburg, pp. 33-45, flgs. 

 n. S (5428 



Graffigny (De). Fus6e-aeroplane. 



La Rev. Techn., T. 25, 1904, Paris, p. 136. (5429 



. L'61ectricite dans I'aerostation. 



La Lum. Elec, XLIII, 1892, Paris, p. 213; L'Electricite, XVI, 1892, Paris, p. 

 74. (5430 



Graffigny, H. de. Ballons. L'aerostation frangaise. 



Limoges, Eugene Ardant et Cie. [n. d.], pp. 121, ill. S (5431 



. Die luftschiffahrt und die lenkbaren ballons. Ueberstezt von A. Schulze. 



Leipzig, Reissner, 1888, 8°, pp. 310, ill. (5432 



. L'aeronat F. Contour. 



La Rev. Techn. (25 aoOt 1904), Paris. (5433 



. La navigation aerienne et les ballons dirigeables. Bibliotheque scien- 



tifique contemporaine. 



Paris, J. B. Balliore et Fils, 1888, 12°, pp. 344, flgs. 43. (5434 



. Les aeroplanes. 



1908, Paris, pp. 140, ilia. (5434tt 



. Recits d'un aeronaute. Histoire de l'aerostation. Fantaisies a^rosta- 



tiques. 



1885, p. 279, 8°, grav. 19. (5435 



