[478-A] Syst. of Geol., vol. i. p. 210.
[478-B] Ibid., p. 211.
[478-C] See above, pp. 327, 333.
[479-A] See Lyell, Quart. Geol. Journ., vol. i. p. 199.
[479-B] Dr. Boase, Primary Geology, p. 319.
[480-A] Geol. Trans., 2d series, vol. ii. p. 227.
[480-B] Darwin, Volcanic Islands, pp. 69, 70.
[480-C] Geol. Obs. in S. America, p. 167. See also above, p. 471.
[480-D] Bulletin, vol. iv. p. 1301.
[483-A] See notices of Savi, Hoffmann, and others, referred to by Boué, Bull. de la Soc. Géol. de France, tom. v. p. 317.; and tom. iii. p. xliv.; also Pilla, cited by Murchison, Quart. Geol. Journ., vol. v. p. 266.