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 392
ment on the top of the hill or bottom of the hollow, time will besaved by the method represented in Figs. 402 and 403. Fig. 403. … 552. When the rod is a little too lotv, raise it alongside of astake, or the body, and put the top of the rod right ; then meas-ure down from the bottom of the rod, and add it to its length. 553. When the rod is a little too high, so that the line of sightstrikes the peg below the bottom of the…
Surveying
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