Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 104
f\ e-\ … Fig. 182. Fig. 184. Fig. 186. shade side. This distinction assists in contrasting flat and curve surfaces.To understand and apply the shade lines, however, we must know thedirection in which the light is supposed to fall upon the object, and thencethe locality of the shadows. It is necessary for…
