Note 341 — Chapter III · APSE VAULTS

They may have been inspired by the salient arches of such a tunnel vault as that in the Temple of Diana at Nîmes, and in any event would seem to owe their origin to classic prototypes and to be largely decorative, a theory which is strengthened by the appearance of such a vault as that in the little church of Saint Jean-de-Moustier, at Arles (probably of the ninth century) (Revoil, I, pl. XVI), where these radiants very closely resemble Corinthian pilasters.