The construction of Lombard and Gothic vaults (1911)
Porter, Arthur Kingsley, 1883-1933 · New Haven : Yale university press; [etc., etc.] · leaf 30
below instead of from above. For this reason rib vaults were pre-ferred to other forms under towers, not only at Quimperle, but in many transi-tional edifices of the Ile-de-France. Much more skillfully executed is the vault of St.-Victor of Marseille (Fig. 20).Here the diagonals are much reduced in… … Fig. 18. St. - Nicolas, Moissac, (Tarn-et-Garonne).Vault of Narthex.