Southesk, E. of 1886. The Oghams on the Brodie and Aquhollie Stones, with Notes on the Inscriptions of the Golspie and Newton Stones, and a List of the Oghams in Scotland. Proceedings of the Society of Antiquaries of Scotland. 20, (Nov. 1886), 14–40. DOI:https://doi.org/10.9750/PSAS.020.14.40.