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 69
nt havinga known height of cross-hairs, the target can finally be set, asbefore. If the ground be so low or so high that a peg cannot beset with its top at the required height, drive a peg till its topis just above the surface of the ground. Observe to the rodon it, determine its height above or… … lill 12 orN with the words (83.) Staking out Work, When embankments and excava-tions are to be made for roads, etc., side-stakes are set at pointsin their intended outsideedges; i. e., where theirslopes will meet the sur-face of the ground; andthe height which theground at those points isabove or…
Surveying
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