The octagon part is in both turrets longer than the square, but, like it, divided into two stories. The central tower of the church, which was large and square, is now reduced to a fragment: three of its sides are gone; the western remains sufficiently perfect to shew what the whole was when entire. It contained a double tier of arches, the lower consisting of two, which were large and simple, the upper of three, divided by central shafts and masonry, so that each formed a double window. All of them were circular-headed, but so far differed from the architecture of the nave, that they had side-pillars with capitals. The church[15] was entered by a long narrow porch.--The nave is a fine specimen of Norman architecture, but is remarkable in that style for one striking peculiarity, that the eight wide circular arches on either side, which separate it from the aisles, are alternately supported by round pillars and square piers; the latter having semi-cylindrical columns applied to each of their sides. The capitals are ornamented with rude volutes. The arches in the triforium are of nearly the same width as those below, but considerably less in height. There is no archivolt or moulding or ornament. Above these there is only one row of windows, which, like all the rest, are semi-circular headed; but they have neither angular pillars, nor mouldings, nor mullions. These windows are rather narrow externally, but within the opening enlarges considerably. The windows in the upper and lower tiers stand singly: in the intermediate row they are disposed by threes, the central one separated from the other two by a single column.--The inside of the nave is striking from its simplicity: it is wholly of the eleventh century, except the reparations already mentioned, which were made in 1688.--The choir and Lady-Chapel are nearly demolished; and only some fragments of them are now standing: they were of pointed architecture, and posterior to the nave by at least two centuries. A smaller church, dedicated to St. Peter, stood near the principal one, with which it was connected by means of a corridor of pointed arches. There are other instances of two churches being erected within the precincts of one abbey, as at Bury St. Edmund's. St. Peter's was a building at least of equal antiquity with the great church. But it had undergone such alterations in the year 1334, during the prelacy of the twenty-seventh abbot, William Gemblet, that little of the original structure remained. He demolished nearly the whole of the nave, for the sake of adding uniformity to the cloisters of the monastery.--M. Le Prevost, however, is of opinion, that the ruins of Jumieges contain nothing more interesting to an antiquary than the west end of the portion of building, which subsequently served as the nave. It is a mass of flint-work; and he considers it as having belonged to the church that existed before the incursion of the Normans.