Notice of the Gun Flint Manufactory at Brandon, with Reference to the Bearing of its Processes upon the Modes of Flint-working Practised in Prehistoric Times: (With Illustrative Examples of the Tools and Specimens of the Manufacture.). (1887). Proceedings of the Society of Antiquaries of Scotland, 21, 206-212. https://doi.org/10.9750/PSAS.021.206.212