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 242
mensions taken by a scale ; and the area of theirregular figure A B C D E A obtained by the rules for triangles andtrapezoids, it will be found equal to the area of the right-angled triangleABF; great care, however, must be used to make the lines very fine,and to take the dimensions of all the… … 214 land-surveying. (Part V. Perpendicularly to the base, and from the first angle, drawa temporary line. Lay your ruler from the first to the third angle ; move it ina parallel position to the second angle; and mark the tempo-rary line at number 1. Lay your ruler from number 1, to the fourth angle…
Surveying
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