Possibly the altar was moved when, owing to the early settlement of some of the piers, it was found necessary to wall up the space between the arches opening into the choir transepts, and insert the perpendicular arches as a counter thrust to the strain of the central tower. It is hardly conceivable that the evidence offered by the roof paintings, and the solitary instance of carved capitals, can be misleading on this point. =The East= (or =Choir=) =Transept=, which on the north side, screened as it is from the aisle, is used and known also as the Morning Chapel, has on its west wall a portion of a very beautiful screen of Early English work. Of this John Carter, from whose pages the accompanying sketch of a portion is reproduced, says that it was moved during Wyatt's restoration, as he naively puts it, "during the late dilapidatious innovations, and modern fanciful introductions so fatal to our study of antiquities." Other authorities consider its original position uncertain. Yet since its architecture is obviously coeval with that of the building, and the arches inserted by Bishop Beauchamp show proof of having been planned to rest on something at the base of the tower piers, there can be little doubt that when Wyatt removed the screen to re-erect a medley of his own composing made of fragments of the demolished chantries, he disturbed one more of the original features of the cathedral. [Illustration: PORTION OF THE OLD ORGAN SCREEN. _From a Drawing by H.P. Clifford._] A curious double aumbry in the north wall of this chapel is unusual, not merely in the pitch of its arches, which are triangular gables, but also in the solid stone shelves dividing its space into six compartments; other aumbries in this church show similar features, but this alone retains its original wooden doors. The superb brass of Bishop Wyville (illustrated on p. 114) is in the pavement of this transept. It is illustrated in almost every work on monumental brasses as a notable example. A canopied lavatory of beautiful design is upon the east wall to the right, the altar being not in the centre, but almost in the corner on the left-hand side. =The Eastern Aisle= is not so important as similar "processionals" at Exeter, Winchester, and some other English churches; still, the grace of its clustered columns, like those of the Lady Chapel, give it a character of its own. [Illustration: PISCINA IN THE SOUTH CHOIR AISLE.]