The original plan of the cathedral was very simple. It had a nave and aisles, transepts, with apsidal chapels to the east of them, a raised lantern or Cimborio over the Crossing, and three parallel apses east of it. On the north-east side of the church--an unusual position, selected probably in obedience to some local necessity--is a large cloister of the same age as the church, with a Chapter-house on its southern side. The piers throughout are clustered in a very fine and massive style, and of a section which is often repeated in early Spanish Gothic; each arch being carried on two coupled half-columns, and the groining-shafts being placed in a nook in the angle between each of these pairs of columns. The nave piers are no less than 11 ft. 9 in. in diameter, the clear width of the nave being about 40 ft. 8 in., and the span of the arches east and west about 20 ft. The bases are finely moulded, and have foliage carved on the angle between their circular and square members. The capitals and abaci are carved generally with a most luxuriant exuberance of conventional foliage, whilst the broad solid unmoulded and unchamfered sections of the arches which rise above them seem to protest gravely against any forgetfulness of solidity and massiveness as the greatest elements at the disposal of the architect. The groining of the nave and its aisles is all quadripartite, as also is that of the transepts, save at the extreme end of the northern transept, which is covered with a pointed waggon-roof. The choir has two bays of cross-vaulting on its western portion and a semi-dome over the apse--a form of roofing which is repeated over the other early apses; that of the north transept having been rebuilt in the fourteenth century, and vaulted in the usual manner. It is probable that the cross-vaults in the choir were not originally contemplated, as they are carried on small shafts raised on the capitals of the main groining-shafts, which may perhaps have been intended to carry a waggon-vault. The roof of the apse is considerably lower than that of the choir, and a small rose window is pierced in the spandrel between the two. The arch in front of the semi-dome of the apse is--like all the other main arches--pointed, though those which open into the smaller apses are semi-circular. The latter, being in the lower part of the wall, were, no doubt, completed at an early date; whilst the former, being on the level of the groining, would not be finished until much later. The apse is lighted with three windows in the lower part of the wall, which are richly shafted inside, and by seven small and perfectly plain round-arched windows, pierced in the lower part of the semi-dome with very singular effect. On the exterior all these windows are remarkable for a very wide splay from the face of the wall to the glass--a feature of early work in England, and usually preceding the common use of glass. The walls are carried up a