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Rh flamboyant, the feeling of breadth being retained in minor ornaments, long after it had been lost in the main design, and sometimes capriciously renewing itself throughout, as in the cylindrical niches and pedestals which enrich the porches of Caudebec and Rouen. Fig. 1, Plate I, is the simplest of those of Rouen; in the more elaborate there are four projecting sides, divided by buttresses into eight rounded compartments of tracery; even the whole bulk of the outer pier is treated with the same feeling; and though composed partly of concave recesses, partly of square shafts, partly of statues and tabernacle work, arranges itself as a whole into one richly rounded tower.

XVII. I cannot here enter into the curious questions connected with the management of larger curved surfaces; into the causes of the difference in proportion necessary to be observed between round and square towers; nor into the reasons why a column or ball may be richly ornamented, while surface decoration would be inexpedient on masses like the Castle of St Angelo, the tomb of Cecilia Matella, or the dome of St Peter's. But what has been above said of the desirableness of serenity in plane surfaces, applies still more forcibly to those which are curved; and it is to be remembered that we are, at present, considering how this serenity and power may be carried into minor divisions, not how the ornamental character of the lower form may, upon occasion, be permitted to fret the calmness of the higher. Nor, though the instances we have examined are of globular or cylindrical masses chiefly, is it to be thought that breadth can only be secured by such alone: many of the noblest forms are of subdued curvature, sometimes hardly visible; but curvature of some degree there must be, in order to secure any measure of grandeur in a small mass of light. One of the most marked distinctions between one artist and another, in the point of skill, will be found in their relative delicacy of perception of rounded surface;