Imitative art;, or, The means of representing the pictorial appearances of objects, as governed by aerial and linear perspective: : being a manual of details, for the amateur sketcher and the man of business, with a chapter on finish. (1840)
Howard, Frank, 1805-1866, Darton & Clark, publisher, J. Green and Co., printer · London : Darton and Clark, Holborn Hill. · leaf 52
38 LIGHTS AND SHADOWS. And so with all other forms, however regular or irregular they may be. But when the objects are globular or horizontally cylindrical, as the side of a column, cone, or ball. … the extreme outline receives a delicate reflected light, and the darkest part of the half-tint is not at the extreme boundary. So with the shaded side ; from the highest light it graduates through half-tints to the deepest shadow, beyond which is perceived a reflection by which the globular or…
Drawing · Perspective · Shades and shadows · Surfaces · Drapery in art · Projection
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
