[993] See Catalogue of Brit. Insects, by John Curtis, Esq.
[994] See some good remarks on the Formation of Soils, Bakewell's Geology, chap. xviii.
[995] See Professor Sedgwick's Anniversary Address to the Geological Society, Feb. 1831, p. 24.
[996] Treatise on Rivers and Torrents, p. 5. Garston's translation.
[997] De la Beche, Geol. Man., p. 184., 1st ed.
[998] Phil. Trans., vol. ii. p. 294.
[999] Maclaren, art. America, Encyc. Britannica.
[1000] Maclaren, art. America, Encyc. Britannica, where the position of the American forests, in accordance with this theory, is laid down in a map.
[1001] Annuaire du Bureau des Long. 1834.
[1002] Since this was written I have seen in New Brunswick (1852) a lake formed by beavers who had thrown a dam, consisting of stakes, stones, and mud, across the course of a small streamlet, between Dorchester and the Portage south of the Peticodiac river. The beavers have since been extirpated by man, but the lake remains, and musk rats have taken possession of the shallow parts of the lake to build their habitations in them.