1. Hutton, J., "Theory of the Earth; or an Investigation of the Laws Observable in the Composition, Dissolution, and Restoration of Land upon the Globe", Trans. Roy. Soc. Edin., 1, (Pt. ii), 209 (1788).
2. New information has been collected by Mr. R. J. B. Munro, assistant librarian of the Royal Society of Edinburgh, which, it is hoped, may be incorporated in due course in a Hutton memorial volume that is projected by the Royal Society of Edinburgh.
3. Notably, Fitton, W. H., "A Review of Mr. Lyell's âElements of Geologyâ; with Observations on the Progress of the Huttonian Theory of the Earth", Edin. Rev., 69, 406 (1839); Geikie, A. Sir, "Founders of Geology", 2nd edit., 1905, Chap. 9; Bailey, E. B., and Tait, D., article "Geology" in "Edinburgh's Place in Scientific Progress", 63 (Edinburgh, 1921); Bailey, E. B., in "The Interpretation of Scottish Scenery", Scot. Geog. Mag., 50, 308 (1934); Macgregor, M., "James Hutton, the Founder of Modern Geology: 1726–97". Endeavour, 6, 109 (1947); Clow, A., and Clow, Nan L., "Dr.'James Hutton and the Manufacture of Sal Ammoniac", Nature, 159, 425 (1947).
4. Fitton, W. H., loc. cit., p. 411.
5. Lyell Mrs., "Life, Letters and Journals of Sir Charles Lyell, Bart.", 2, 47 (1881).