Moore, Charles Herbert, 1840-1930 · New York, London, The Macmillan Company · leaf 290
Fig. 137. — Vaulting of St. Pauls. … XIV THE RENAISSANCE IN ENGLAND 243 intervals at each end of each compartment, over which seg-ments of barrel vaulting, of a form generated by the ellipticallunettes of the clerestory, are turned. The pendentives thushave a peculiar shape, and are segments of a hemisphere cutby four vertical planes…
Architecture, Renaissance
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