Medieval architecture, its origins and development, with lists of monuments and bibliographies (1909)
Porter, Arthur Kingsley, 1883-1933 · New York, The Baker and Taylor Company · leaf 92
d wall arches, the crowns of all the ribs could bebrought to the same level. Although this principle seems so obvious to us to-day, itcost the builders of the He de France — even after they hadbegun to perceive dimly the possibilities of the construction —at least thirty years of groping experiment… … III. 160. — Diagram of Rib Vault on an Oblong Plan vaults, especially in the transverse and longitudinal arches,this was always done in a hesitating and partial manner; thevault still remained domed, and the round arch was retainedwherever possible. The masons at first had clearly no idea ofwhat…
Architecture, Medieval
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