A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 148
ikewise an angle of14° with that side, and therefore makes an angle of 76° with the meridian. ! ! Fig. 169 cl 1 .1 3 ; A 1 / i i // -E 1 / i i 1/ ! ! / t !/! ! 1// / 1 I // / / \J, tc ^T AT 212. With a Paper Protractor. Engraved paper protractors may beobtained from the instrument-makers, and are… … bered. Draw a straight line to represent a meridian through the center ofthe circle in any convenient direction. Number the degrees from 0° to 90°each way from the ends of thismeridian, as on the compass-plate.The protractor is now ready foruse. Choose a convenient pointfor the first station.…
Surveying
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