Chapter IV: The Origin and Development of Modern Geology

(1) (p. 123). James Hutton, from Transactions of the Royal Society of
Edinburgh, 1788, vol. I., p. 214. A paper on the "Theory of the Earth,"
read before the Society in 1781. (2) (p. 128). Ibid., p. 216. (3)
(p. 139). Consideration on Volcanoes, by G. Poulett Scrope, Esq., pp.
228-234. (4) (p. 153). L. Agassiz, Etudes sur les glaciers, Neufchatel,
1840, p. 240.