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 147
dsplotting them on paper, the directions of the various pointingsare at once drawn on the paper which is mounted on the topof the table, no angles being read. The true relative positionsof certain points in the landscape are thus transferred directlyto the drawing-paper to any desired scale. The… … Fig. 26. ADJUSTMENT, USE, AND CARE OF INSTRUMENTS. II9 being parallel to one edge of the box, the magnetic meridianmay be at once marked down on any portion of the map, andthe bearing of any intersecting line determined by means of aprotractor. The instrument has been long and extensively usedfor…
Surveying
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