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 197
. The plate consists of sectors of inch boards firmly glued andnailed together, the joints of the boards being always broken. The faceis then formed in a similar way, by nailing and gluing arcs of board oneto another to the required width of face ; these last should be of clearstuff. The whole is…
