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 40
A B Draw the line A B, equal to 7 ; and erect the perpendicularB C, equal to 4 chains. With C as a centre, and the radius C D,describe an arc; and with A as a centre, and the radius D A,describe another arc, cutting the former in D. Draw the linesC D and D A, and the figure will be completed.… … 20 land-surveying. (Part I. Draw the two diameters to bisect each other perpendicularlyin the centre o. With the radius A o, and the centre C or D,intersect A B, in F and f.—These points will be the foci of theellipse. Take any point m, in the transverse diameter, and withF and f as centres, and…
Surveying
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