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 509
i,u*iiil jAA..A.± 4t rig. 4. … SHADING AND SHADOWS. 827 horizontal line D E upon fig. 8, and describe from the centre C (fig. 9) acircle with a radius equal to tlie half of that line ; then draw, through thesame centre, a line parallel to the raj of light, wliich will intersect theplane T> E in c ; lastly, describe from the…
