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 249
it parallel to E ; and markthe temporary line at 3. Draw a line from F to 3; and 3 F 3 will be the trianglerequired ; hence the area of the irregular figure A B C D E FG H K, may be found by multiplying the base 3, 3, by halfthe perpendicular F m. Note.—The method of reducing fields of four or five… … Draw the temporary line 1, 2, to touch the angle A. Part V.) LAND-SURVEYING. 221 Lay the ruler from A to C; move it parallel to B; and markthe temporary line at 1. Lay the ruler from 1 to D; move it parallel to C; and markthe temporary line at 2. Lay the ruler from 2 to E ; move it parallel to D ;…
Surveying
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