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 636
Fiss. 3. 4, 5. of these figmes will be easily understood by inspection, as they contain nolines except isometrical ones. To draio Angles to the Boundary Lines of an Isometrical Cvhe,