“Notice of the Discovery of Remains of the Elk (Cercus Alces, Linn., Alces Malchis, Gray), in Berwickshire; With Notes of Its Occurrence in the British Islands, More Partiuclarly in Scotland, &c”. 1872. Proceedings of the Society of Antiquaries of Scotland 9 (November): 297-345. https://doi.org/10.9750/PSAS.009.297.345.