A dictionary of architecture and building; biographical, historical and descriptive (1901)
Sturgis, Russell, 1836-1909 · New York, Macmillan · leaf 560
from rib to rib, in which case the surfaces arecylindrical, conical, or conoidal ; or they maybe archeil from rib to rib, the surfaces thenbeing spheroidal or convex-couoidal. The ribs958 VAULT are of circular or elliptical curvature, formingsemicircular, seiuicUiptical, pointed, three-cen-tred, or… … Fig. 71 ^Plax and Section). The first step in the development of the ribsystem of vaulting is often said to be the in-crease of the depth of the cross band in barrelvaidts, making it an independent arch, withthe vaulting above it. But such a rib, if it isproperly so called, does not sustain the…
Architecture
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