Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon
A technical history of flight by German aeronaut Alfred Hildebrandt, translated by W. H. Story and issued in New York by D. Van Nostrand in 1908 for engineers and aeronautical readers. Halftone photographs show spherical balloons aloft, glider frames on open ground, and a balloon's shadow ringed by a glory, alongside line drawings of wing and engine construction useful for period aviation diagrams.
