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 509
the trivet arms. In Fig. 133 is shown a theodolite (not a transit since thetelescope does not revolve on its horizontal axis) designed forthe measurement of horizontal angles exclusively. Here mi-crometer microscopes are used. The horizontal limb is fromeight to twelve inches in diameter. There is… … Fig, 133. GEODETIC SURVEYING. 479
Surveying
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