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 82
]t<Milts so XLTTT.—To convert a square into a regular octagon (fig. 130).tlic (liai^oiials of the scpiare cutting at ^y fn^iu the corners A,P), C,D,as radius, descnl)e aics cutting tlie sides at [/ //, c^^c.; join thefound to (•oin])Ute the octagon. GEOMETRICAL TEOBLEMS. 61 Pkob. XLIY.—To…
