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 484
rtical motionof the telescope, the line of sight being at right angles to thebase-line. 340. M. Jaderins Method.—Prof. Edward Jaderin, ofStockholm, has brought the measurement of distances bywires and steel tapes to great perfection. He uses a tape 25metres in length, and stretches it over tripods… … Fig. 130. is attached to the tape, this being graduated to millimetres ona bevelled edge. The middle of this scale is 25 metres from thegraduation at the other end of the tape. The tripods are setas near as may be to an interval of 25 metres, but it is evidentthat the reading may be taken on them…
Surveying
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