Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 225
2o6 MECHANICAL DRAWING. in the shadow is uniformly dark and is illustrated by uniformruling of heavy lines closely spaced. … THE BLOCK, SECTIONED.Fig. 82. 3. Of two or more surfaces which are parallel to the planeof projection, the surface nearest to the plane is the lightest andthe one most remote the darkest. 4. A surface which is inclined to the plane of projection andin the light becomes lighter as it approaches. 5.…
Mechanical drawing
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