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 375
e for Colorado are given in Appendix B. The U. S. mininglaws, together with all State and Territorial laws and local mining rules andregulations, are compiled in vol. xiv. of the U. S. Census for 1880, 4to, 705 pp..1885. This is a most valuable publication. Price $4 if not obtained throughan M. C.… … N-^ Sta,.6 P.LAN OFTUNNEL AND SHAFTScale 1 in.=100 ft, Fig. 97. face as in the preceding case, thus avoiding a resetting of theinstrument at Station No. i when the underground work iscompleted. At the same time measure the vertical angle toStation No. 2 in the tunnel. Set the instrument at…
Surveying
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