Smith, John Alexander. “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”. Proceedings of the Society of Antiquaries of Scotland, vol. 9, Nov. 1872, pp. 106-1, doi:10.9750/PSAS.009.106.116.