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 203
ust be taken in storing such balloons, asthey are very liable to catch fire spontaneously. The methodsthat were employed in making the old varnishes are unfortunatelyno longer known. Several other things have also been used formaking the coverings airtight; but nothing better is known thanlinseed…
Aeronautics
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