Page:The ecclesiastical architecture of Scotland ( Volume 3).djvu/135

 Of the rood itself, as a matter of course, nothing remains. The south-west pier is built hollow to contain the stair to the tower. Since the Plan (Fig. 1032) was made the original doorway to this stair has been discovered, as shown in the view. The door shown on the Plan has been cut out at some later time.

As already stated, the nave is almost of the same length as the choir

—St. John the Baptist's, Perth. Cap and Base of Choir Pier.

(being only about 12 inches less), but each of the arches of the arcade is of rather smaller span than those of the choir, owing to the internal projecting responds at the west end, which may be regarded as fulfilling the purpose of buttresses, and also to the enlargement of the two great piers on the west side of the crossing. Like the choir, the nave is divided into five bays. It has no triforium nor clerestory, but owing to the comparative lowness of the arcade arches (see Fig. 1042), while the ridge of the