Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon (1908)
Hildebrandt, A. (Alfred), b. 1870, Story, W. H. tr · New York, D. Van Nostrand company · leaf 296
ing started on their record-breaking journey on July 31st,1901. They rose to a height of 35,400 ft., and calculated before-hand from theoretical considerations that human life was impos-sible at a height of 36,100 ft. Siirings description of the ascentis as follows:— At 10.50 a.m. the balloon… … Fig-. 175.—Herr von Schroetters handwriting under an atmospheric pressure of945 inches of mercury. (Photograph from Zuntz Hohenklima und Bergwanderungen.) north-west wind, the sky being partially covered with cirrus andcumulus. The balloon was rather more than half full and rosequickly but…
Aeronautics
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