by a triforium and clerestory. There is a porch on the north side and two doorways from the cloister on the south side.
The oldest portion of the building is, undoubtedly, the eastern part of the south wall of the south aisle of the nave, where it adjoins the transept. This portion of wall consists of three bays (Fig. 957), containing the south-east doorway from the cloister to the nave, and three pointed windows in the upper part. The doorway is of the transition style, having a round arch-head, with numerous bold mouldings springing from carved and foliaged
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Fig. 955.—Paisley Abbey. Sedilia in Choir.
caps with square abaci (Fig. 958). The windows above are very simple in style, and are apparently early first pointed work. This part of the building probably dates from the first half of the thirteenth century. The western portion of the south aisle of the nave (Fig. 959) and the whole of the south clerestory (see Figs. 957 and 959) are evidently portions of the restored church of the fifteenth century. The south aisle wall contains the south-west and south-east doors from the nave to the cloister. The windows of the south wall have the sills placed at a high level, so
