Topographical drawing and sketching : including applications of photography (1888)
Reed, Henry A. (Henry Albert), 1844-1930 author · New York : John Wiley & Sons, 15 Astor Place · leaf 281
he electro-magnet e withdrew the stop, and the drop was quickly closed by means of the rubber bands /. The photographs obtained in this instance were fairly good. At the close of 1884, M. Casse made use of a very small captive balloon; and, to avoid the weight due to the use of an electric cable,… … Fig. 55. Fig. 56. ments of this nature and attended with similar results were made at Chatham during the same year. 58. Notably Successful Experiments. — A notable instance is afforded in the experience of MM. Tissandier and Ducom at Paris in 1885. The ascent was made at 1.40 P.M., in a partially…
Topographical drawing · Photographic surveying
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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