“Notice of a Flint Arrow-Head in the Shaft, Found in a Moss at Fyvie, Aberdeenshire, With Notes in Illustration of the Manufacture of Arrow-Shafts With Flint Tools”. 1875. Proceedings of the Society of Antiquaries of Scotland 11 (November): 508-13. https://doi.org/10.9750/PSAS.011.508.513.