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 384
t, run-ning S. 24° 15 W., 102 ft. Sta. 9 at 6th level in shaft. breast of 6th level, runningN.E. breast of 6th level, runningS.W. Sta. 10 at 7th level in shaft. breast of 7th level, runningN.E. breast of 7th level, runningS.W. Sta. II at 8th level, at bot-tom of shaft, breast of 8th level,… … LONGITUDINALSECTION TRANSVERSESECTION Fig. 100. run about 2 ft. from the north end of the shaft,was to the centre of the breast.23 In the levels the line of survey 354 SURVEYING. Fig. loi shows the plan, and Fig. lOO the longitudinal and transverse sec-tions of the mine as plotted from the…
Surveying
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