Internally the one old arch remaining is, of course, more or less semicircular, but the three new ones are pointed and consequently the string-course above them is carried at a higher level. Over this string-course on the west side is an arcade of pointed arches with slender shafts and foliated capitals. A corbel composed of a fox’s head carries the centre shaft. Altogether these form a graceful combination of shafts, corbels, and large bowtells with shaft-bases. Above is the characteristic Norman billet string-course. [Illustration: CEILING OF CENTRAL TOWER.] Bishop Gower’s stage, above a string with the ball-flower ornament, contains on each face a tall two-light window, having pointed arches opening to a wall-passage, and externally a niche on either side. The third storey (of Bishop Vaughan, c. 1515) has a top-heavy effect and a most unusual parapet, with polygonal angle-shafts and a set of eight pinnacles. There are at present three bells, and the one that is used most and strikes from the clock is outside on the tower roof under a wooden diminutive belfry. There are two bells at the west end on the nave floor. Apparently there was an octave in the middle of the fourteenth century, when the bells were recast and the largest was lost at sea. About 1690 there were five (some cracked), and in 1748 the Chapter ordered that the four large bells should be taken down as they were both useless and dangerous, and in 1765 two were sold. The upper part of the interior of the tower consists of an elaborate wooden vault, which was raised by Scott and finely emblazoned. As the roof of the tower must obviously have been raised at least twice before, it seems hardly necessary for Scott to apologise (_vide_ Report, 1869, Appendix) for doing so again. His success, however, is very patent.