[613] Poggendorf's Annalen, 1836, p. 183.
[614] See Admiralty Chart, with views and sections, 1842.
[615] For height of cone and references, see Buist, Volcanoes of India, Trans. Bombay Geol. Soc. vol. x. p. 143.
[616] Humboldt's Cosmos.
[617] Daubeny, Volcanoes, p. 267.
[618] See Buist, Volcanoes of India, Trans. Bombay Geol. Soc. vol. x. p. 154, and Captain Robertson, Journ. of Roy. Asiat. Soc. 1850.
[619] See Glossary.
[620] Bunsen, Volcanic Rocks of Iceland.
[621] Bulletin de la Soc. Géol. de France, tom. ii. p. 206.
[622] Since the publication of the first edition of this work, numerous accounts of recent earthquakes have been published; but as they do not illustrate any new principle, I cannot insert them, as they would enlarge too much the size of my work. The late Von Hoff published from time to time, in Poggendorf's Annalen, lists of earthquakes which happened between 1821 and 1836; and, by consulting these, the reader will perceive that every month is signalized by one or many convulsions in some part of the globe. See also Mallet's Dynamics of Earthquakes, Trans. Roy. Irish Acad. 1846; and "Earthquakes," Admiralty Manual, 1849; also Hopkins' Report, Brit. Assoc. 1847-8.