Fig. 195.—St. Margaret’s Chapel, Edinburgh Castle. Elevation of Chancel Arch.

square-headed doorway, with splayed opening, has, possibly in the sixteenth or seventeenth centuries, been cut through the west wall (see [Fig. 194.]). There are indications of a narrow doorway having formerly opened into the chancel on the north side. It is now built up, and forms an ambry on the inside. (See [Fig. 192.])

There are three windows in the south wall, one of them being in the chancel. There is also a window in each of the end walls, the one in the west end being at a considerably higher level than the other (see [Fig. 194.]). All the windows are splayed widely on the inside, and slightly so on the outside, and they are round arched. They are all about 8 inches wide by about 2 feet high. The two westmost windows in the south

Fig. 196.—St. Margaret’s Chapel, Edinburgh Castle. Chancel Arch Details.

wall, and the high window in the west gable, give light to the nave; the east window in the south wall, and that in the east wall, light the chancel, the former being in the south side, and the latter in the centre of the circular apse.

There is a locker on the north side of the chancel, and a piscina projects, without any recess in the wall, from the south side. This piscina