“Notices (1) of a Pottery Churn from the Island of Coll, With Remarks on Hebridean Pottery; And (2) of a Workshop for Flint Implements in Wigtownshire”. Proceedings of the Society of Antiquaries of Scotland, vol. 42, Nov. 1908, pp. 326-9, https://doi.org/10.9750/PSAS.042.326.329.