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 174
12a. 1r. 30p. 5. Required the plan and area of a field, from the followingnotes. E B424R. offE. Proof-line. F E 750L. ,-r F. Diag. 31 F 400 R. offM. - H M R. off H. 227 to K. L H R. DffL. D L 43. Return to D. F L R. off F. H F 730 400 R. off EL Diag.Diag. ~~dTT~ 926R. offD. Diag. GD950Return to G.… … L4 152 LAND-SURVEYING. (Part IV, Answer. Having constructed the figure, you will find the perpendi-culars of the trapezium A C D E = 354 and 195; of D F G E= 404 and 340; ofDLHF = 426 and 316 ; and the per-pendicular of the triangle F H M =. 227 links. Hence the area of the field is = 10a. 2r. 25p.…
Surveying
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