The construction of Lombard and Gothic vaults (1911)
Porter, Arthur Kingsley, 1883-1933 · New Haven : Yale university press; [etc., etc.] · leaf 26
Fi<;. \ii. Sts. - Gervais-et-Protais, Rhuis, (Oise).South side aisle, Vault of ea.stem Chapel. Fig. 10. Sts. - Gervai.s-et-Protais. Rhuis, (Oise).North side aisle. Vault of eastern Chapel. THE CONSTRUCTION OF LOMBARD AND GOTHIC VAULTS 11 But though wood was available, it was costly to work; the…