A treatise on surveying ; in which the theory and practice are fully explained (1860)
Alsop, Samuel · Philadelphia, E. C. & J. Biddle & co. · leaf 182
302. If the line be inaccessible.From C (Fig. 125) run any base-line CD; and at C and D takethe angles of position of twovisible points A and B in thegiven line. Calculate the angle … 180 COMPASS SURVEYING. [Chap. V. CAB. Bun EOF, making ACE = CAB, and EF is theparallel required. If the line and the point both be inaccessible. Fig. 126.
Surveying
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