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 622
Draw rays from the j^oints a. h. c. d. e.f. g. h.to tlie station point S, and project their intersection with tlie base lines tothe perspective line a D as in previous examples: the intersection of thelines Ic D, V D, on D by the perpendiculars thus projected, will establishthe points of the curve… … 4ro PLATE cm.
