358 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 55 



Gerlach, Edm. Beitrag zur Erklarung des Segelfluges der Vogel. 



Zeitschr. Luftsch., V Jahrg., 10 Heft, 1886, Berlin, pp. 281-292. S (5307 



. Bemerkungen zu dem Aufsatze des Herrn Weyher: " Sur le vol direct 



de rhomme." 



Zeitschr. Luftsch., Ill Jahrg., 11 Heft, 1884, Berlin, pp. 321-327. S (520S 



. Bemerkungen zu der " Antwort " des Herrn Weyher. 



Zeitschr. Luftsch., IV Jahrg., 8 Heft, 1885, Berlin, pp. 68-73, ill. S (5209 



. Construction d'un aeroplane! 



Zeitschr. Luftsch., Ill Jahrg., 11 Heft, 1884, Berlin, pp. 344-345. S (521 



. Notiz iiber die Hubkraft von Schiffssclirauben mit senkrechter Axe. 



Zeitschr. Luftsch., VI Jahrg., 1 Heft, 1S87, Berlin, pp. 12-15. S (5211 



. Ueber die Moglichlieit, den Drachen zu Reliognoscirungen zu benutzen. 



Zeitschr. Luftsch., II Jahrg., 9, 10 Heft, 1883, Berlin, pp. 257-273, 306-312, pi. 1, 

 figs. 2. S (5212 



. Zur Theorie des Segelns. 



R. Gartners Verlagsbuchhandlung, Hermann Heyfelder, 1888, Programm Nr. 99. (5213 



Gebland, E. Historical sketch of instrumental meteorology. 



Rep. Int. Meteor. Congr., Bull. No. 11, Part 3, 1896, Washington, D. C, pp. 687- 

 699. S (5214 



Gerli. Ag., Opuscoli. Parma. Pag. 1-32: Relazione della machina aerostatica 

 contenente uomini fatta innalzare per la prima volta in Italia. 



1785, VIII, p. 99, fol., pi. 16. (6215 



. Maniera di migliorare e dirigere i palloni aerei. 



Roma, 1790. (5216 



Geeloff. Eine Montgolfiere in Berlin. 



111. Aer. Mitt., VH Jahrg., 11 Heft (Nov. 1903), Strassburg, pp. 375-376. S (5217 



German Army, Airship Division. See 465. 

 German army balloons. 



Aeronautics, Vol. 1, No. 5 (Feb. 1894), New York, pp. 67-68. S (5218 



German |5000 motor prize. 



Amer. Mag. Aeronautics, Vol. 1, No. 3 (Sept. 1907), New York, p. 8. S (5219 



German (The) v?ar balloon. 



Aer. World, Vol. 1, No. 6, 1903, Glenville, Ohio, p. 143. S (5220 



Geemana. See 2906. 



Germany, Aeronautics in. See 1131, 1313, 1669, 1741, 1748, 1927, 2309, 4736, 

 4848, 5218, 5220. 5425, 6101, 6348, 8693, 9147, 13191. 



Germany as a ruler of the air. 



Literary Digest, Vol. 37, No. 6, 1908, New York, p. 179, ill. S (5221 



Gersthofen. See 26. 



