Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . Fig. 165.—A. Laurence Kotch. SCIENTIFIC BALLOONING. 265 drowning. Several of Zambeccaris fingers were so frostbittenthat they had to be cut off. Glaisher and Coxwell made a remarkable ascent in Sep-tember, 1862. The balloon had so much lift that at the endof 18 minutes it wTas 10,500 ft. high, having risen at the rateof 10 ft. per second. At this height the temperature was at thefreezing point. At 16,000 ft. Coxwell began to lapse into acomatose state, w
Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . Fig. 165.—A. Laurence Kotch. SCIENTIFIC BALLOONING. 265 drowning. Several of Zambeccaris fingers were so frostbittenthat they had to be cut off. Glaisher and Coxwell made a remarkable ascent in Sep-tember, 1862. The balloon had so much lift that at the endof 18 minutes it wTas 10,500 ft. high, having risen at the rateof 10 ft. per second. At this height the temperature was at thefreezing point. At 16,000 ft. Coxwell began to lapse into acomatose state, whereas Glaisher was unaffected. They soon. Fig-. 166.—Kite ascents on the Prince of Monacos yacht inthe Mediterranean. reached an altitude of 29,000 ft., where the thermometer regis-tered 2° F. The sensations they experienced have been welldescribed by Glaisher in the following words:— Up to this moment I had been able to take my observa-tions without being inconvenienced by any breathing troubles,w7hereas Coxwell had often lapsed into unconsciousness. ButI soon found that I was no longer able to see the mercurycolumn of the w7et-bulb thermometer, and after a while thesame thing happened with the hands on the clock and the finemarks of division on the instruments. I therefore asked Coxwellto help me, as I could no longer see to do the work. But theballoon had been in a constant state of rotation, so that the 266 AIESHIPS PAST AND PEE SENT. ropes connected to the valve had become entangled ; Coxwelltherefore climbed up from the basket and managed to free made another reading, and noticed that the barometer readingwa
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