The walls of the chancel are only 2 ft. 3½ in. thick, but the great size of the buttresses amply compensated for this, and preserved them from suffering at all by the thrust of the groining. Before the restoration the state of the chancel was a sad falling off from its old state. The arcade at the base of the walls was perfect all round. The lower part of the groining-shafts remained, as also did the whole of a cluster of shafts on each side between the short western bay already mentioned and the next. The groining was all destroyed, but marks of it remained against the wall, and it was easy therefore to obtain its exact section. The treatment of the western bay was peculiar. It was clearly never covered, as the rest of the chancel was, with a quadripartite vault. The mark of a vault remained against the wall above the chancel arch, whilst the side walls showed that a barrel-vault had sprung from them. The cluster of three shafts between this bay and the next remained to be explained. One of them only was the groining-shaft answering to the others; but upon a very close examination of a fragment of the wall above them and of the marks on the caps themselves, I was able to ascertain beyond doubt that the two other shafts had carried an arch moulded on the east face, the soffit of which, continued westward, formed the pointed barrel-vault over the western bay. This has now been all restored, and with so much certainty as to all its parts, that I trust it will not be opened to the criticisms to which too many restorations are liable, of being rather ingenious than true. I should mention that the new groining-ribs are of the same section as the old. The window in the north wall has been exactly restored after the old remains, some of which have indeed been incorporated with the new work. It is of three uncusped lights, with tracery composed of three cusped circles. The cusping was let into a groove, and a sufficient number of fragments remained to give the exact number of cusps, etc. On the exterior the jamb has two engaged shafts, with caps and bases, and on the inside the monials are well moulded and have each a detached marble shaft, whilst the jambs have two marble shafts and are richly moulded. Internally the arch and tracery mouldings are very delicate, whilst externally they consist of bold chamfers and hollows only. The detail of the sculpture of the capitals of the monials was managed with rare skill, as seen by a fragment found in the north wall. This window is now treated in the same way as that at the east end of the north aisle, being partly below the roof of the Wilshyre chantry. An old arch existed behind the arcade under it, and this has been replaced by one of stone, so that the chantry is now sufficiently open to the chancel for the purpose of use by the congregation.