here, where the heights of the shafts are so far shortened, they are set thicker; five shafts, or rather four and a capital, above, to four of the arcade below, giving twenty-one intervals instead of nineteen. In the next or third arcade,--which, remember, is the highest,--eight arches, all equal, are given in the space of the nine below, so that there is now a central shaft instead of a central arch, and the span of the arches is increased in proportion to their increased height. Finally, in the uppermost arcade, which is the lowest of all, the arches, the same in number as those below, are narrower than any of the façade; the whole eight going very nearly above the six below them, while the terminal arches of the lower arcade are surmounted by flanking masses of decorated wall with projecting figures. XIV. Now I call _that_ Living Architecture. There is sensation in every inch of it, and an accommodation to every architectural necessity, with a determined variation in arrangement, which is exactly like the related proportions and provisions in the structure of organic form. I have not space to examine the still lovelier proportioning of the external shafts of the apse of this marvellous building. I prefer, lest the reader should think it a peculiar example, to state the structure of another church, the most graceful and grand piece of Romanesque work, as a fragment, in north Italy, that of San Giovanni Evangelista at Pistoja. The side of that church has three stories of arcade, diminishing in height in bold geometrical proportion, while the arches, for the most part, increase in number in arithmetical, _i.e._ two in the second arcade, and three in the third, to one in the first. Lest, however, this arrangement should be too formal, of the fourteen arches in the lowest series, that which contains the door is made larger than the rest, and is not in the middle, but the sixth from the West, leaving five on one side and eight on the other. Farther: this lowest arcade is terminated by broad flat pilasters, about half the width of its arches; but the arcade above is continuous; only the two extreme arches at the west end are made larger than all the rest, and instead of coming, as they should, into the space of the lower extreme arch, take in both it and its broad pilaster. Even this, however, was not out of order enough to satisfy the architect's eye; for there were still two arches above to each single one below: so at the east end, where there are more arches, and the eye might be more easily cheated, what does he do but _narrow_ the two extreme _lower_ arches by half a braccio; while he at the same time slightly enlarged the upper ones, so as to get only seventeen upper to nine lower, instead of eighteen to nine. The eye is thus thoroughly confused, and the whole building thrown into one mass, by the curious variations in the adjustments of the superimposed shafts, not one of