Proceedings of the Society of Antiquaries of Scotland, 36, p.735, 1902.
Charleson's diagram
compares well with modern plans, note how none of the main chamber walls are
square to each other.
The northern wall, in particular, is set at a very skewed angle, and the floor
also has a pronounced slope, we felt it was like
being in a "fun house" version of a cairn chamber.
The roofing details in Charelson's section is necessarily vague, the main
chamber roof had gone by the time of his investigation,
as had the roofing of both the north and south side cells shown, only the
eastern and western side cells retained any original roofing.
As usual, our sincere thanks to the Society for allowing use of material from its most excellent Proceedings.