Wonderful ballon ascents : or, The conquest of the skies. A history of balloons and balloon voyages (1870)
Marion, Fulgence · New York : Cassell Petter & Galpin · leaf 128
n who undertook them, and the aims whichthey severally meant to achieve by them. The early ascentsof Montgolfier had for their aim the establishment of thefact that any body lighter than the volume of air which itdisplaces will rise in the atmosphere ; those of Ro/.iers wereundertaken to prove that…
Balloons · Balloon ascensions
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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