Smith, John Alexander. “Notice of a Roman Bronze Patella, Found on the Farm of Palace, in Teviotdale, Roxburghshire; With Chemical Analysis of the Metal and Inside Coating of the Patella, by Stevenson Macadam, Ph.D., Lecturer on Chemistry”. Proceedings of the Society of Antiquaries of Scotland, vol. 4, Nov. 1863, pp. 597-01, doi:10.9750/PSAS.004.597.601.