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 383
g. 101 shows the plan, and Fig. ioo the longitudinal and transverse sec-tions of the mine as plotted from the field-notes. The plan is plotted from thecourses and horizontal components of the measurements in the shaft and levels,as projected upon a horizontal plane. The longitudinal section is… … angles to a vertical plane passing through Stations i and n, upon which thetransverse section is plotted as projected from the vertical angles, courses, andmeasurements in the shaft. Thus it will be seen that for the full representation of an underground sur-vey, showing the relative position of…
Surveying
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