The theory and practice of surveying. Designed for the use of surveyors and engineers generally, but especially for the use of students in engineering (1886)
Johnson, J. B. (John Butler), 1850-1902 · New York, J. Wiley & sons · leaf 368
ansit should be provided with the Solar At-tachment, that all lines of the survey may be referred to themeridian. In unimportant surveys the pitch of the shaft or the dip ofthe vein may be determined by the clinometer or by measuringthe horizontal and perpendicular distances between any… … Fig. 94. Fig. 95. 268. Mining Claims.—The first work of the surveyor upona mining claim is its location. Mining claims are of differentdimensions according to the local laws and customs of the 340 SUR VE YING. country; varying from 50 feet to 600 feet in width and from100 to 3000 feet in length. In…
Surveying
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