1. Early optics and spectroscopy—the Scottish dimension
2. Aspects of the chemical, medical and social history of mineral waters and baths
3. E. J. Waring , “Bibliotheca Therapeutica ... and an appendix containing the bibliography of British Mineral Waters”, New Sydenham Society, London, 1879.
4. (Gilbert Skeyne), “The Well of the Woman Hill Besyde Abirdene”, [J. Ross, Edinburgh], 1580.