Medieval architecture, its origins and development, with lists of monuments and bibliographies (1912)
Porter, Arthur Kingsley, 1883-1933 · New Haven, Yale University Press · leaf 51
rge vault, say one hundred feet long, asit would require a centering also one hundred feet long. The 15 THE HERITAGE OF ANTIQUITY thrifty Romans accordingly devised the scheme shown in 111. 8and 111. 7, Fig. 5. Along the space to be vaulted, at convenientintervals, arches — called ribs — were… … Perspective of the Barrel ^ault intermediate arches were sprung, covering the space betweenthe original arches, on whose edges they rested. If the introduction of the principle of the arch was an ad-vance of grave significance, the vault which followed as a neces-sary corollary was destined to bear…
Architecture, Medieval · Architecture
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