Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . uneven lines as are shown between m and m would scarcely bepossible on perfectly level country. An ordinary road isgenerally fairly straight and turns abruptly at a bend; in THE INTEEPKETATION OF PHOTOGEAPHS. 327 hilly country they become more serpentine in extreme caseswith many gentle curves. These peculiarities can be traced onthe photograph of Kudersdorf, and in many of the others. Theview of the chalk-pits near Kudersdorf is particularly interest-in
Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . uneven lines as are shown between m and m would scarcely bepossible on perfectly level country. An ordinary road isgenerally fairly straight and turns abruptly at a bend; in THE INTEEPKETATION OF PHOTOGEAPHS. 327 hilly country they become more serpentine in extreme caseswith many gentle curves. These peculiarities can be traced onthe photograph of Kudersdorf, and in many of the others. Theview of the chalk-pits near Kudersdorf is particularly interest-ing ; at a first glance the uneven nature of the ground is notvery striking. The heights of the various points are shown inmetres, and the incline of 1 in 4 in the foreground looks almost. Fig. 206.—Kiidersdorf. level. The number of small irregular pathways is also an indi-cation of the nature of the ground. They appear in greatnumbers on both sides of the railway siding, and would beclearly impossible on flat ground. The distribution of light and shade depends on the lie of theland, and conclusions can often be drawn in consequence as towhether the one part is higher or lower than the other. But acertain amount of caution must be exercised, seeing that adifference in the colour of the soil or in the nature of the 328 AIRSHIPS PAST AND PRESENT.
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, bookpubl, booksubjectaeronautics
