Shades and shadows, with applications to architectural details, and exercises in drawing them with the brush and pen .. (1912)
Ware, William R. (William Robert), 1832-1915 · Scranton, International Textbook Company · leaf 13
Pig. C2 … Fig. D Surfaces of Light and Shade.—If a plane surface standsedgewise to the light, one element of the surface being parallelto the direction of the rays of light, these rays do not strikeit but glance along it, and the surface is neither in light norin shade (Fig. CI). It is nevertheless called a…
Shades and shadows
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