Page:The ecclesiastical architecture of Scotland ( Volume 3).djvu/437

 Another window in the south wall of the chancel (shown in Fig. 1353) is of the same character, only that it is lintelled on the inside instead

—Preston Church. Plan.

of being arched. Beneath this window there is a peculiar piscina (see Fig. 1353). It consists of a triangular shelf projecting about

—Preston Church. Piscina.

17 inches from the wall (Fig. 1354) and having a shallow basin supported on a rounded base. Above the shelf there is a round-arched recess 2 feet 2 inches high by 18 inches wide. The back of this recess leans forward, so that while it is 8-1/2 inches deep at the base, it is only 3 inches at the crown of the arch.

There are two south doors with square lintels, one in the chancel and another in  the nave near the west end. A later door has been made at the east end of the nave.

All the doors and windows are finished on the outside with a simple chamfer.

There has probably been a sacristy on the north side of the nave.

Mr. Ferguson assigns this church to an early period. The small windows