“Notice of Ancient ’Feeding-Bottles’ for Infants (one containing Remains of Milk, recently Presented to the Museum of the Society; with Notes of the Discovery of similar Vessels in Gallo-Roman Graves, and Instances of their Occurrence in England” (1872) Proceedings of the Society of Antiquaries of Scotland, 9, pp. 106–116. doi:10.9750/PSAS.009.106.116.