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 199
ne ;and the fourth surveyor correctly retraced the line of the third,and found his marks, but this line was wrong originally, andtherefore wrong now. All the surveyors ran their lines on thesupposition that the original due east and west line meanteast and west as the needle pointed at the time of… … jj In the figure below, the horizontal and vertical lines represent true east and north lines ; and the two upper lines running from left to right represent the two lines set out by Fig. 198. __ the survey- Xsn^v^65 tne years there named. 283. Remedy for the Evils of the Secular Change. The…
Surveying
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