A complete treatise on practical land-surveying, in seven parts; (1839)
Nesbit, A[nthony], 1778-1859. [from old catalog] · London, Longman, Orme, Browne, Green, and Longmans; [etc., etc.] · leaf 251
from 1 to F; move it parallel to G; and markthe temporary line at 2. Lay the ruler from 2 to E; move it parallel to F; and markthe temporary line at 3. Draw a line from E to 3; and E 3 m, will be the trianglerequired ; hence the area of the irregular figure A B C D E FG H K L M N, may be found by… … Produce the line A B, at pleasure, for a temporary line. Lay the ruler from A to L; move it parallel to M; and markthe temporary line at 1. Lay the ruler from 1 to K; move it parallel to L ; and markthe temporary line at 2. Draw a line from 2 to K ; and produce it at pleasure, for atemporary line.…
Surveying
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