“The Brochs or Pictish Towers of Cinn-Trolla, Carn-Liath, and Craig-Carril, in Sutherland, with Notes on other Northern Brochs. With Report upon the Crania found in and about them” (1891) Archaeologia Scotica, 5, pp. 95–130. Available at: https://journals.socantscot.org/index.php/arch-scot/article/view/314 (Accessed: 11 December 2025).