“Notes of an Urn Found in a Cist in a Gravel Hillock Near Oban (in a Letter to the Secretary) With Notice of the so-Called Serpent-Mound of Lochnell”. 1876. Proceedings of the Society of Antiquaries of Scotland 11 (November): 468-69. https://doi.org/10.9750/PSAS.011.468.469.