[683] On the Formation of the Earth, p. 55.

[684] Geol. Soc. Proceedings, No. 60, p. 36. 1838.

[685] Michell on Earthquakes, Phil. Trans. vol. li. p. 566. 1760.

[686] Michell, Phil. Trans. vol. li. p. 614.

[687] Quarterly Review, No. lxxxvi. p. 459.

[688] Darwin's Travels in South America, &c., 1832 to 1836. Voyage of H. M. S. Beagle, vol. iii. p. 377.

[689] Ann. de Ch. et de Ph., tom. xxii. p. 428.

[690] Mallet, Proceed. Roy. Irish Acad. 1846.

[691] See Father Acosta's work; and Sir Woodbine Parish, Geol. Soc. Proceedings, vol. ii. p. 215.

[692] Molina, Hist. of Chili, vol. ii.