Manuscript of ‘Frost and Fire’ by John Francis Campbell, being a collection mainly of his geological observations while on his travels from July 1862 to November 1863, including extracts from earlier journals., 1862-1865., Adv.MSS.50.5.13-50.6.1. Correspondence and papers, including many manuscripts in Gaelic, journals and yearbooks (with many photographs), albums of watercolour paintings and sketches, and experimental notebooks, of John Francis Campbell of Islay (1821-1885), Gaelic scholar and collector of oral tradition, traveller, scientist, official of the royal household and public servant., Adv.MSS.50.1.1-51.2.7. National Library of Scotland Archives and Manuscripts Division. https://manuscripts.nls.uk/repositories/2/archival_objects/16828 Accessed May 04, 2024.