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 252
move it parallel to D ; and markthe temporary line at 6. Lay the ruler from 6 to B; move it parallel to C ; and markthe temporary line at 7. Draw a line from 7 to B; and B, 7, 5, 2, will be the tra-pezium required ; hence the area of the irregular figure ABCD E F G H K L M, may be found by… … Continue A R, for a temporary line. 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. 224 land-surveying. (Part V. Draw a line from D to 2 ; and produce 4t at pleasure, for…
Surveying
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