A system of geometry and trigonometry, with a treatise on surveying; in which the principles of rectangular surveying, without plotting, are explained (1835)
Flint, Abel, 1765-1825, Gillet, George · Hartford, Belknap & Hamersley; New York, Cooke & Co. · leaf 49
ds, may just touch the diago-nal at A, and neither go the least above or below it; that distance inthe dividers being measured on the scale wiU give the length of the per-pendicular. CASE III. To SURVEY A FIELD WHICH HAS MORE THAN FOUR SIDES,BY THE CHAIN ONLY. Measure the several sides, and from… … 30 6>7 Ch. L.30.6020.4022.4016.2013.5028. Diagonals. ACADAE Ch. L.45.35.24.20 TO PROTRACT THIS FIELD. Draw the side AB, making it the given length 30.60;with the diagonal AC 45 and the side BC 20.40, describecross arcs as at C, from the points A and B as centres, andthe point of intersection…
Surveying
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