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 110
on, as A C, and meas-ure onward, in the same direction, tillCD=AO. Take any point E in theline of A and B. Measure from E toC, and onward in the same line, till C F= C E. Then find by trial a point G,which shall be at the same time in theline of C and B, and in the line of Dand F. Measure the… … CECA Fig. 124. 155. Othenvise: Prolong B A to some point C. Eange outany convenient line C A, and measureC A = C A. The triangle C A B isnow to be reproduced in a symmetricaltriangle situated on the accessibleground. For this object take, on A C,some point D and measure CD =C D. Find the point E at…
Surveying
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