Mackenzie, George. “XI. Notice of an Urn, in Which Were Contained Very Curious Jet Ornaments Discovered Near Assint, in Ross-Shire. Communicated by Sir George S Mackenzie, of Coul, Baronet”. Archaeologia Scotica 3 (November 30, 1832): 49. Accessed January 30, 2023. http://journals.socantscot.org/index.php/arch-scot/article/view/211.