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Macadam, W.I. 1896. Notes on Ancient Structures in the Islands of Seil and Luing, and in the Garbh Island; with Preliminary Notice of the North Fort of Luing. Proceedings of the Society of Antiquaries of Scotland. 30, (Nov. 1896), 23–29. DOI:https://doi.org/10.9750/PSAS.030.23.29.