Inside Out Library · Explore
A treatise on levelling, topography, and higher surveying (1876)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, b. 1840, ed · New York, D. Appleton and company · leaf 66
at the bottom ofthe wall, on the first side, and observe on it. Measure theheight of the wall above the peg, and put this down as a B. S.Drive another peg on the other side of the wall; measure down DIFFICULTIES. 47 to it from the top of the wall, and put that down as an F. S.,just as if the level… … F. S. Sta. Ht. B. S. © 50 74.00 5.00 79.00 3.00 Peg. 76.00 13.00 89.00 12.00 Peg. 77.00 2.00 79.00 1.00 51 78.00 Second Method. Mark where the line of sight strikes thewall; measure up to the top of the wall, and put this down asan F. S., with a plus sign, as in (69), where the line of sightstruck…Surveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
More pictures from A treatise on levelling, topography, and higher surveying
More like this
