Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 87
er and left-hand edges,may be obtained either (a) by ruhng a broad line of tint with the drawing-pen at the desireddistance from the outline, and instantly, before it dries, tinting from it with the brush; or (b) byruling the line with the pen and thick Chinese White. 225. A tint will spread much… … 226. Of the colors frequently used by engineers and architects those which work best for flatefiects are carmine, Prussian blue, burnt sienna and Paynes gray. Sepia and Gamboge, are, fortunately,rarely required for uniform tints; but the former works ideally for shading bj^ the dry processdescribed…
Mechanical drawing · Lettering
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