but this part of the building is now a dense mass of ivy. The turret stair is in the north wall of the nave, and is placed at some distance from the tower. Fig. 1170 shows the piscina in the south transept. Across this
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Fig. 1170.
The Collegiate Church of Crichton.
Piscina.
transept, where shown on the Plan, there is a wooden screen (Fig. 1171) of late erection, but not without some character, near its centre, and beneath the south arch of the tower there stands up, a few inches from the pavement, a broken worn stone about 12 inches square, the purpose of which is not obvious.
The church throughout is vaulted with a pointed barrel vault, but no provision has been made for the vaulting of the nave. Crichton Church was converted, in 1449, by Sir William Crichton, well known as Chancellor Crichton, into a collegiate establishment for a provost, nine prebendaries, and two singing boys, and was suitably endowed. The existing structure was probably erected at that time. Sir William also built an extensive addition to the Castle of Crichton, and doubtless the same builders were employed on church and castle, as many of the details closely resemble each other. From Mr. Gourlay's letter, already referred to, it appears that there was a provost's house about a mile distant. He mentions that it was then used as a farmhouse and called Rosehall, and that there was a place of worship beside it and a churchyard, but with the exception of the latter nothing now remains.
The tower is supported by pointed arches springing from responds in the four sides. The responds are of simple section, and the caps contain some good late foliaged carving (see Fig. 1171).
The walls are carried up with one low story above the set-off
