he extreme altitude attained, andFl(J j I am particular in the statement be-cause, so far as Iknow, chromo-spheric matter(redhydrogen in thiscase) has neverbeen observed atan altitude ex-ceeding 5. Thevelocity of ascentalso, 1G6 miles persecond, is consid-erably greaterthan anythinghitherto… … ire Men to Fly? Darwin tells us that even in the upper regions of the air,near the summits of the Andes, vultures maybe seen floatingonwards for miles upon motionless wings. What is thesecret of this flotation ? Gravitation acts as forcibly on thesubstance of the bird as on that of the animal. Nor…
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