REPP, T. G. 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. Archaeologia Scotica, v. 4, p. 327-336, 30 nov. 1858.