Millar, A. H. (1888) “Notices (1) of Ecclesiastical Music discovered in the Burgh Charter-Room of Dundee, (2) of Two Stone Coffins discovered at Invergowrie, (3) of a Curious Pewter Casket from Dundee”, Proceedings of the Society of Antiquaries of Scotland, 22, pp. 164–171. doi: 10.9750/PSAS.022.164.171.