Be. II. Ch. IV. AUVERGNE. 493 aisles — as shown in the section — which forms a massive and perfect abutment to the thrust of the great arch, besides, as before pointed out, rendering the vault independent of a wooden covering, which, though in some instances supijlied, was certainly not originally intended. The defect of this arrangement is of course evident, as compared with the northern styles, inasmuch as a clerestory was impossible, and the onlv effective light that could be admitted was through the side-aisles. These chui'ches, however, have an approach to a clerestory not found in that at Fontifroide, before quoted, in having a triforium or range of arches opening into the gallery, which gave a lightness of character to the suiJerstructure, and admitted to a certain extent a borrowed light. 361. Elevation of Clievet, Notre Dame du Port Clermout. (^Froiu OliHpuy.) No scale. Externally, the projection of the buttresses is slight, and they are connected by arches, struck from the same centres as the windows, above Avhich three small arches relieve and ornament the upper part of the nave. The central arch of these is pierced Avith the small Avindow which lights the upper gallery. Above this is a cornice of more elegance and of greater projection than is usually found in churches of this asre. The most beautiful and most admired feature of the style is the arrangement of the chapels of the chevet externally. In the vicAv given above of St. Saturnin, Toulouse (Woodcut No. 344), as in almost all the churches of that style, it will be observed how awkwardly these chapels are stuck on, as if they were after- thoughts, and altogether foreign to the main lines of the building.
