A dictionary of architecture and building; biographical, historical and descriptive (1901)
Sturgis, Russell, 1836-1909 · New York, Macmillan · leaf 567
ie first st€p in the development of the ribsystem of vaulting is often said to be the in-crease of tlie depth of the cross band in barrelvaults, making it an independent arch, withthe vaulting above it. But such a rib, if it isproperly so called, does not sustain the vault,which would stand just as… … ning of the rib system will doubtless be foundin the substitution of a square-cornered archfor the groin stones of a solid comj)Ouud vault,as in Fig. -12, from S. Ambrogio, Milan. This959 VAULT is a great advance in eiise of construction. Thesiuiping of groin stones is quite a problem…
Architecture
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