The construction of Lombard and Gothic vaults (1911)
Porter, Arthur Kingsley, 1883-1933 · New Haven : Yale university press; [etc., etc.] · leaf 16
y keyedinto the vaults. At present, as may be seen in the photograph (Fig. 2) the ribsof this vault actually do project slightly from the surface. The vault having been writers is, perhaps, the most convincing argument for the general soundness of his deductions, as, I think,any impartial… … Fig. 1. Vault in Ruin known as Roma Vecchia, near Via Appiaabout 7 kilometers from Rome.
