[1]
“Notes of Rock Sculpturings of Cups and Concentric rings, and ’The Witch’s Stone’ on Tormain Hill; also of some Early Remains on the Kaimes Hill, &c., near Ratho, Edinburghshire”, PSAS, vol. 10, pp. 141–151, Nov. 1874, doi: 10.9750/PSAS.010.141.151.