§ XVII. On shafts of middle size, the only ornament which has ever been accepted as right, is the Doric fluting, which, indeed, gave the effect of a succession of unequal lines of shade, but lost much of the repose of the cylindrical gradation. The Corinthian fluting, which is a mean multiplication and deepening of the Doric, with a square instead of a sharp ridge between each hollow, destroyed the serenity of the shaft altogether, and is always rigid and meagre. Both are, in fact, wrong in principle; they are an elaborate weakening[83] of the shaft, exactly opposed (as above shown) to the ribbed form, which is the result of a group of shafts bound together, and which is especially beautiful when special service is given to each member. [Illustration: Fig. LXII.] § XVIII. On shafts of inferior size, every species of decoration may be wisely lavished, and in any quantity, so only that the form of the shaft be clearly visible. This I hold to be absolutely essential, and that barbarism begins wherever the sculpture is either so bossy, or so deeply cut, as to break the contour of the shaft, or compromise its solidity. Thus, in Plate XXI. (Appendix 8), the richly sculptured shaft of the lower story has lost its dignity and definite function, and become a shapeless mass, injurious to the symmetry of the building, though of some value as adding to its imaginative and fantastic character. Had all the shafts been like it, the façade would have been entirely spoiled; the inlaid pattern, on the contrary, which is used on the shortest shaft of the upper story, adds to its preciousness without interfering with its purpose, and is every way delightful, as are all the inlaid shaft ornaments of this noble church (another example of them is given in Plate XII. of the "Seven Lamps"). The same rule would condemn the Caryatid; which I entirely agree with Mr. Fergusson in thinking (both for this and other reasons) one of the chief errors of the Greek schools; and, more decisively still, the Renaissance inventions of shaft ornament, almost too absurd and too monstrous to be seriously noticed, which consist in leaving square blocks between the cylinder joints, as in the portico of No. 1, Regent Street, and many other buildings in London; or in rusticating portions of the shafts, or wrapping fleeces about them, as at the entrance of Burlington House, in Piccadilly; or tying drapery round them in knots, as in the new buildings above noticed (Chap. 20, § VII.), at Paris. But, within the limits thus defined, there is no feature capable of richer decoration than the shaft; the most beautiful examples of all I have seen, are the slender pillars, encrusted with arabesques, which flank the portals of the Baptistery and Duomo at Pisa, and some others of the Pisan and Lucchese churches; but the varieties of sculpture and inlaying, with which the small Romanesque shafts, whether Italian or Northern, are adorned when they