Gothic architecture in France, England, and Italy (1915)
Jackson, Thomas Graham, Sir, 1835-1924 · Cambridge [Eng.] University Press · leaf 72
lower level to receive the Thesex-springing of the nave vaults, and quadrant barrel vaults vaultwere turned over the triforium, as in the churches ofAuvergne, to give abutment. The nave had a quadri-partite vault over the square double bay, like that atS. Ambrogio, with regular diagonal ribs, but… … Fig. 13- he raised a thin wall for some height and then spread itout with vaulting surfaces right and left to meet those ofthe main vaults. The two pockets or cells thus formeddescribed an ellipse on the main walls, and their crownnaturally ran obliquely towards the centre of the mainvault where…
Architecture, Gothic
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