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 87
ee GEOMETRICAL PEOBLEMS. vals A d, d e, &c., on each line, equal to the breadth of the octagon to bedescribed, and through these points draw parallels to the given lines, to … ^£ form sqnares. Within these sqnares constrnct octagons, by Probs. XLIII.or XLIY., and finish as in the figure. PROBLEMS ON PROPORTIONAL LINES AND EQUIVALENT FIGURES. Prob. LI.—To divide a given straight line into two jparts projoortionalto two given lines. Let A B (fig. 160) be the line to be…
