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 293
were drowsy, ourlegs trembled, our hands lost all power, and gradually welapsed into a state bordering on unconsciousness. We breatheda little oxygen out of the receivers, and felt at once refreshed.All the distressing symptoms disappeared, and we seemed oncemore to be in full possession of bodily… … Fig. 172.—Professor Siiring, of the PrussianMeteorological Institute. SCIENTIFIC BALLOONING. 273 fell below 1025 in., which corresponds to a height of 28,000 ft. ;the observations were then concluded, and it was possible, evenat this pressure, to smoke a cigarette. Sehroetter is satisfiedthat the…
Aeronautics
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