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-Porträt-Frontisp. u. 12 lithogr. Taf. 310 S. Mod. Lwd. unter Verwendung des Orig.-Einbd. [...]
(Verschiedene Gebiete - Varia, Aeronautik)