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 91
-line)except the first and last, which are only entered once. The sum of these offsetsis then multiplied by the base, the product divided by the number of offsetsset down, and the quotient given is the area required. 7.—Directions for laying down offsets by a plotting-scale, may be seen iaPart the… … BY THE TRUE METHOD. Triangle A r a.265 base.120 per. 5300265 Trapezoid r a c s 279 sum.185 base. 31800 ■ 1395223227951615 Part III.) LAND-SURVEYINGL Trapezoid sceu, Trapezoid ueiw. 69 per. 1*9)50 j 209 sum.295 base. 1045 1881418 6^655
Surveying
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