113-1857
Racle,G.
Direction des Aerostats, deux modes d'Orientation. Paris, Ghio 1883. Mit 6 Textabb. 32 S. Obrosch.
(= Publications scientifiques). - A curious work in French language explaining how to improve the direction of airships. This inventor proposes to add propellers to improve the navigation and many other technical tricks. - Tls. etw. fleckig u. Ecken leicht knickfaltig.
