five pointed arches, with a trefoiled arch within each. These rest on triple shafts, with carved caps and rounded abaci. Over each shaft and between the arches there is a circle containing a boldly carved Norman head. The feature is unique and its effect is fine. The upper arcade consists of three larger arches, each containing two smaller arches, and all resting on shafts with carved and rounded caps. The shields in the larger arches are pierced with bold quatrefoils. Two circles occur in the spandrils over the arches, but they do not now contain heads."[319] The same design is continued round the S. side of the tower, and along the W. wall of the nave as far as the main doorway, but the N. and E. sides of the tower are plain. Above the two arcades the tower contains a large two-light window on the N.E. and W. sides. Each window is divided into two openings by a single central shaft, having a carved cap and broad square abacus, on which rest the two plain pointed arches of the inner openings. The shield above is pierced with a bold quatre-foil. The two western piers of the crossing are still standing, and within the arch there has been erected in modern times a large traceried window. The spaces below the window and across the side aisles have been built up with fragments of the demolished structure, and a window is thus formed at the east end of each aisle. The church has evidently undergone a thorough repair during the fifteenth century, probably during the period when Crawford was abbot (1460-1483). "The work executed at this time consisted of the addition of seven buttresses on the north side and several buttresses on the south side of the aisles. Those on the north side are large, and may either enclose the old buttresses or have been substituted for them. They have a set-off near the centre, above which each contains an elaborately ornamented and canopied niche. Beneath and above the niche there are carved panels, which have contained angels and shields, with coats of arms. The arms of Abbot Crawford are said to have been carved on the panels, but they are now too much decayed to be distinguishable. Above the upper panels the buttresses are continued with several set-offs, and finished with a small square pinnacle. The pinnacles have been crocheted and terminated with a carved finial, but they are now greatly wasted away. There were, doubtless, flying arches from the above buttresses to the clerestory, but they must have fallen with the roof. A somewhat elaborate north doorway has been introduced, in a style similar to that of the buttresses, in the second bay from the west tower. The arch is semicircular, and has an ogee canopy. There are small niches above the arch on each side which contained statues, now demolished. This doorway was probably constructed by Abbot