15 feet 4 inches north and south inside. The north and south walls are 2 feet 6 inches thick, and east and west ends 3 feet 3 inches, and are of the red sandstone of the locality. There was a door in the south wall. Planned in 1870. ([Fig. 72.])
HALCRO CHAPEL, South Ronaldshay.
This is now wholly destroyed, and even the foundations taken out, but the measures were obtained by Mr. G. Petrie so soon after the removal of the latter that the thickness of the walls could be accurately determined.
It was a parallelogram, 21 feet by 14 feet inside. The walls were 2 feet 6 inches thick. The place of the doorway was not ascertained. Planned in 1870. ([Fig. 73.])
Fig. 73.—Halcro Chapel, in South Parish, Ronaldshay. Plan.
ST. TREDWELL’S CHAPEL, Papa Westray.
This chapel is situated on a little holm in a fresh water loch on the east side of Papa Westray. ([Fig. 74.]) It appears probable that a Pict’s