Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 114
like roads, except that in the latter theside from the light is the shaded line; in the former, the side to the light. Or by H^ II ■ M^ I Conventional signs for the more important ob-jects that are likely to need representation on amap are; Fig. 225. Signal of Survey, A Telegraph, ^^ Court-house,… … OIBECTVON OF THE CURRENT Anchorage for ships, f Anchorage for coasters, J^ Rocks always covered, T8 Buoys, t ]Wrecks, -^Harbors, ^5^ Light-house, ^ Signal-house, ^ Channel-marks, <bkO 98 TOPOGRAPHICAL DRAWING. The localities of mines may be represented by the signs of the planets, whichwere…
Mechanical drawing
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