Fig. 988.—Iona Cathedral. Caps of Doorway to Sacristy.
The south transept is 22 feet by 17 feet, and is lighted by a three light traceried window in the south gable wall (see Fig. [984]), and a small window placed at a considerable height in the west wall (see Fig. [995]). The parapet and corbel table are the same as those of the choir.
The crossing has four arches opening into the choir, nave, and transepts, which carry a tower, 29 feet by 25 feet, over the walls, rising to two stories in height above the eaves, and crowned with a plain parapet, supported on simple corbels (see Figs. [984] and [994])). The upper story has rectangular windows on each face, three of them filled with tracery of late patterns, and the one on the north with a window containing simple tracery
Fig. 989.—Iona Cathedral. Caps of Piers of Choir and Crossing.
(Fig. [997]). The lintels are composed of straight arches, supported by a remarkable shaft on the inside, which recalls the turned shafts of pre-Norman work. The access to the tower is by a small wheel staircase at the south-west angle of the crossing. The original doorway of the staircase entered from the nave, but, after the Reformation, the adjoining
Fig. 990.—Iona Cathedral. Caps of Crossing, &c.