The methods used in primary level and triangulation work in unsettled and broken country (1909)
Stewart, John Truesdale · leaf 40
atic.. Tr. Chains, 100, 66, or 55 feet.. Tr.,L. Cement,cans . 1 * T f . 3 I a a it « ^ , field. Tr. Grad i ent*rs . Tr.,L. Ink, fountain-pen filler. L. Levels, plumbing. L. Levels, Y. L. Leveling rods. Mew York. L. Paint, cans. L. Palnt brushes. L. Pins, turning-point. L. Scribes, timber. L. Steel… … The ob.ioct of the level wor.< was to determine elevations for the control of topographic mapping. For the sake of uniform-ity In conparing one area surveyed with another , It was desirableto have the elevations of each based on a common datum, this wasImpractical for tne reason that it would…
Geodesy · Surveying · Triangulation · Theses
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