Letter from Thorleif Gudmundson Repp, A.M., F.S.A. Sc., to the Hon. Montstewart Elphinstone, Honorary Member S.A.Sc., regarding the Runic Inscription on the Monument at Ruthwell. (1858). Archaeologia Scotica, 4, 327-336. https://soas-test.journals.ed.ac.uk/index.php/arch-scot/article/view/301