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 149
Fig. 20S 112 MECHAOTCS. … s i J I / \^ Fig. 204. As two forces may-be compounded, so cou-yersely one force may beresolved into two; tbus,let the weight P, Fig.204r, be supported by two^JL inclined rafters CA andC B. Eacn resists a partof the force exerted bythe weight P. To findthe force exerted againstthe abutments A and…