Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 669
Filling a balloon. The average capacity of these balloons was 70,006cubic feet. Of course it will be understood how balloons are enabledto navigate the air. The envelope being partly filled withcoal-gas-heated air and hydrogen is much lighter than the BALLOONING. I07 surrounding atmosphere, and…
Scientific recreations
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