Blessing, George F. (George Frederick), 1875-1921, Darling, Lewis A. (Lewis Andrew) · New York, J. Wiley & sons; [etc., etc.] · leaf 156
*= —^q- ■; b first attempt will seldom C) corrections Made at Points of inaccurate Direction. result in a line true ineither direction or qual-ity, all preliminary workmust be done with very-light lines. The pencilshould be moved toward the right [see Fig. 92(a)] when drawinglines which are… … (a) Drawing a Horizontal Free-hand Line.
Mechanical drawing
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