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 240
e learnersbook ; after which, the operations by the parallel ruler may be performed.Or, for practice, figures may be made at pleasure ; and the necessary equa-lising lines drawn, according to the subsequent directions. THE USE OF THE PARALLEL RULER IN REDUCING CROOKED FENCES TO STRAIGHT ONES, IN… … Draw, with your pencil, a temporary line C E, at pleasure;then your ruler being closed, lay it from C to A; hold the side,that is next to you, fast; open the other to B; make a markwith your pencil upon the temporary line C E, where the edgeof the ruler cuts that line, as at D ; draw a line from A…
Surveying
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