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 454
Make the edge of theruler pass through some point, aon the table, and turn it till thesights point to the correspondingstation, A on the ground. Draw a line by the ruler. The desiredpoint is somewhere in this line. Make the ruler pass through an-other point, b on the table, and make the sights… … 440 TOPOGRAPHY. new method of surveying with the plane-table, since any numberof points can have their places fixed in the same manner. This problem may also be executed without orientation on theprinciple of trilinear surveying. Three points being given on thetable, lay on it a piece of…
Surveying
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