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
o the centre of the circle, bisect itat D, from D describe an arc through C, cutting the circle at E and F.Draw A E, A F for the required tangents. To construct loithin the sides of an angle a circle tangent to these sides,at a given distance from the vertex.—In fig. 107, to describe a circle or…