A manual for teaching model-drawing : from solid forms, the models founded on those of M. Dupuis : combined with a popular view of perspective, and adapted to the elementary instruction of classes in schools and public institutions (1843)
Williams, J. Butler, Sir, Lowry, Joseph Wilson, 1803-1879 · London : J. W. Parker · leaf 225
204 SHADES AND SHADOWS. … shadow cast by that object on a part of the surface facing the light, but which part is deprived of the direct rays of light by the interposition of the object in relief. Now the shade on the side of the projecting object appears lighter than the shadow adjoining, because, from the adjacent surface…
Drawing · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
