bronze horses which were brought from Constantinople in that year. And this one fact renders it very difficult to speak with confidence respecting the date of any part of the exterior of St. Mark's; for we have above seen that it was consecrated in the eleventh century, and yet here is one of the most important exterior decorations assuredly retouched, if not entirely added, in the thirteenth, although its style would have led us to suppose it had been an original part of the fabric. However, for all our purposes, it will be enough for the reader to remember that the earliest parts of the building belong to the eleventh, twelfth, and first part of the thirteenth century; the Gothic portions to the fourteenth; some of the altars and embellishments to the fifteenth and sixteenth; and the modern portion of the mosaics to the seventeenth. SECTION IX. This, however, I only wish him to recollect in order that I may speak generally of the Byzantine architecture of St. Mark's, without leading him to suppose the whole church to have been built and decorated by Greek artists. Its later portions, with the single exception of the seventeenth century mosaics, have been so dexterously accommodated to the original fabric that the general effect is still that of a Byzantine building; and I shall not, except when it is absolutely necessary, direct attention to the discordant points, or weary the reader with anatomical criticism. Whatever in St. Mark's arrests the eye, or affects the feelings, is either Byzantine, or has been modified by Byzantine influence; and our inquiry into its architectural merits need not therefore be disturbed by the anxieties of antiquarianism, or arrested by the obscurities of chronology.