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 73
Fig. 107. In the same fig., to find the centre^ the radius heing given^ and not thepoints a and t.—Draw parallels to A C and A B at a distance equal to thegiven radius, and their intersection will be the centre required. Pkob. XX.—To describe a circle from a given jpoint to touch a givencircle…
