A treatise on land-surveying; comprising the theory developed from five elementary principles; and the practice with the chain alone, the compass, the transit, the theodolite, the plane table, &c. Illustrated by four hundred engravings, and a magnetic chart (1875)
Gillespie, W. M. (William Mitchell), 1816-1868 · New York, D. Appleton · leaf 214
d \lines those of the new piece of landwhich, starting from A, he wouldimwittingly run out. It would be ofthe same size and the same shape aathe true one, but it would be in thewrong place. None of its lineswould agree with the true ones, andin some places it would encroach onone neighbor, and in… … 208 COMPASS SURVEYING. [part hi. (321) To run out old lines, To succeed in retracing oldlines, proper allowance must be made for the change in the varia-tion since the date of the original survey. That date must firstbe accurately ascertained; for the survey may be much older thanthe deed, into…
Surveying
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.