A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 342
heir topography. This is the best method of working, as it gives a complete checkupon the work. When the paper is filled, put on a new sheet, and begin by fixingon it two points, such as C and D, which were on the former sheet,and from them proceed as before. The sheets can afterward beunited, so… … - ■^-^^ \ .1 a/ .X y any convenient point, as X in Fig. 497, and sight to all the de-sired points, A, B, C, etc., which are visible, and draw indefinitelines in their directions. Measure any line X Y, Y being one of thepoints sighted to, and set off this line on the paper to any scale. 58 332…
Surveying
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