“Report on Standing Stones and Other Remains Near Fowlis Wester, Perthshire: With a Report on the Quartzes and a Report on Samples of Soil from the East Circle”. Proceedings of the Society of Antiquaries of Scotland 77 (November 30, 1943): 174–184. Accessed February 1, 2026. https://journals.socantscot.org/index.php/psas/article/view/8195.