Small, J. 1876. Sketches of later Scottish Alchemists: – John Napier of Merchiston – Robert Napier – Sir David Lindsay – first Earl of Balcarres – Patrick Ruthven – Alexander Seton – and Patrick Scot. Proceedings of the Society of Antiquaries of Scotland. 11, (Nov. 1876), 410–438. DOI:https://doi.org/10.9750/PSAS.011.410.438.