Hutcheson, A. 1883. Notice of the Discovery of Earthenware Jars in the Walls of Dwelling-Houses in Dundee, with some Instances of the Use of Jars in Architecture. Proceedings of the Society of Antiquaries of Scotland. 17, (Nov. 1883), 426–432. DOI:https://doi.org/10.9750/PSAS.017.426.432.