Note 98 — Chapter XVI · SUBTERRANEAN HEAT—ITS POWERS ILLUSTRATED BY EARTHQUAKES.

For the account of these various Earthquakes we are mainly indebted to the indefatigable industry of Sir Charles Lyell, who has collected the facts with great care partly from the descriptions of eye-witnesses, and partly from authentic documents written upon the spot. See his Principles of Geology, vol. ii., chap, xxviii., xxix., xxx. See also Mr. Mallet’s Earthquake Catalogue; and the first of Sir John Herschel’s Lectures on Familiar Subjects.