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 75
angles by measuring a diagonalfor the base of one triangle, and one side of the field for the base of theother. (See Example VI.) 4.—Unskilful surveyors affect to reduce trapeziums into squares, or rect-angles, by measuring all the sides, adding each two opposite sides together,and taking half… … Part III.) LAND-SURVEYING. 53 Measure from A toward C. Finding the perpendicular* a Bto rise at 473, and its length 437 links; return, and continuetoward C, till you come to the place where the second perpen-dicular b D rises. There note down its distance from A, 1128links; measure b D = 508 links;…
Surveying
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