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 348
he procedure, simple as it is, may be said to be proved.Other developers also give good results occasionally, but rodinalis much the most certain in its action. Its simplicity gives it anadded charm. CHAPTER XXII. THE INTERPRETATION OF PHOTOGRAPHS. Photographs which are taken from a fixed position… … Fig. 202.—Village in Posen, as seen from a balloon in winter. has to accustom ones self to the birds-eye point of view. Theinterpretation of an ordnance map requires some experience,and in exactly the same way with overhead photography it isnecessary to learn to recognise the lie of the land. It is…
Aeronautics
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