Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 128
Fig. 244. Fig. 245. divide each quarter of the circumference of the sphere into nine equal parts,though these points and the divisions on the central meridian describe arcs.Glohidar or Equidistant Projection (Fig. 246).—A good practical projec- 112 TOPOGRAPHICAL DRAWING. tion can be made by drawing…
Mechanical drawing
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