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 500
truction is precisely similar to thepreceding. Lines parallel to the direction of the light are drawn fromthe angular ])()iiits of botli interior and exterior prisms; these points areprojected, and the limiting points «, J, c, <^, of the shadow arc determined. SHADING AND SHADOWS. 321 Fio-. 3…
