Warren, Samuel Edward, 1831-1909. [from old catalog] · New York, J. Wiley & sons · leaf 34
abacus upon a square pillar,and of both, on the horizontal plane of projection. [There being no new principles in this problem, we pass atonce to its graphical solution as a new illustration of the methodof (SO) referring to (28) for the line of shade.] Construction.—PI. I, Fig. 4. Let the body be… … pin.
Shades and shadows
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