A system of aeronautics, comprehending its earliest investigations, and modern practice and art... With a brief history of the author's fifteen years' experience in aerial voyages. Also full instructions in the art of making balloons, parachutes etc... Philadelphia, Speel 1850. Gr.8°. Mit Mezzotinto-Portrait-Front. u. 12 lithogr. Taf. 310 S. Lwd. d. Zt. mit Blindpräg. [...]
(Verschiedene Gebiete - Varia, Aeronautik)