3Borlase, William Copeland. The Dolmens of Ireland, Their Distribution, Structural Characteristics, and Affinities in Other Countries; Together with the Folk-lore Attaching to Them; Supplemented by Considerations on the Anthropology, Ethnology, and Traditions of the Irish People. With Four Maps, and Eight Hundred Illustrations, including Two Coloured Plates. Vol. 1. London: Chapman & Hall, Ld., 1897. 305.