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 395
tive expedient the cross vault is to be preferred, as the wholepressure and thrust are collected in four definite resultants, applied at theangles only, so that it might be supported by fourflying buttresses, no matter how slender, providedthey were placed in the direction of these result-ants, and… … ARCHITECTURAL DRAWING. 265 on the inside as flat bands, and harmonizing with the similar form ofpihasters in the walls, but they never nsed groin ribs; the Gothic build-ers introduced these, and deepened the Eoman ribs. The impenetra-tion of vauhs, either round or pointed, produces elliptical groin…
