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 151
d to find the area of a field, from the followingnotes. B D 1236 1000 Return to B. ; AC 1326 1000 R. off A. D A 0 515 28 400 50 300 65 200 33 100 0 000 R. offD. Diag. Diag. Part IV.) LAND-SURVEYING. 127 CD 0 1375 50 1300 7a 1200 84 1000 52 800 0 652 0 356 44 200 50 100 0 000 R. off C. BC 0 664 25… … Having constructed the figure, you wffl find the perpen-dicular D a = 512, and the perpendicular B a = 446 links. Trapezoid A B C D. is}** 958 sum.1326 diag. 57481916 2874958 1270308 Part IV.) LAND-SURVEYING. 129 Offsets taken on the line A B. 242 75 59 50 106 50 12100 181 100 2950 65 18100 32 =—…
Surveying
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