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 215
5 oz., and the complete thing together with the caseweighs 13 oz. The price is twenty-five shillings, which mayeasily be saved in the cost of maps. It is extremely necessary to see that the whole of the materialis maintained in thoroughly sound condition. Everything must a. o 194 AIESHIPS PAST AND… … Fig. 120.—Balloon basket and its contents. journey; the gas soon becomes adulterated by diffusion, and itisnot generally possible to anchor an inflated balloon. Sometimesa balloon can be loaded with ballast and left in its inflated con-
Aeronautics
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