A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 112
F K, which is equal to it. If D F and D H be made respectively equal to one half or onethird, etc., of D B and D G, then will K D and K F be respectivelyequal to one half or one third, etc., of D E and BE. 0. When Both Ends of the Line aee inaccessible. 160. By Similar Triangles. Let A B be the… … Measure a distance equal to CA from C, on the line C B, to some point E. Measure D E. Then is A B = AC XDECD If more convenient, measure C D in the contrary direction fromthe river, as in Fig. 130, instead of toward it, and in other respectsproceed as before. 161. By Parallels. Let A B be the…
Surveying
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