[493] De Rerum Nat. vi. 740.—Forbes, on Bay of Naples, Edin. Journ. of Sci. No iii. new series, p. 87. Jan. 1830.

[494] Humboldt, Voy. p. 317.

[495] Von Buch, Ueber einen vulcanischen Ausbruch auf der Insel Lanzerote.

[496] Haustæ aut obrutæ urbes.—Hist. lib. i.

[497] Hist. Rom. lib. lxvi.

[498] The earliest authority, says Mr. Forbes, given for this fact, appears to be Capaccio, quoted in the Terra Tremante of Bonito.—Edin. Journ. of Sci. &c. No. i. new series, p. 127. July, 1829.

[499] Geol. Trans. second series, vol. ii. p. 346.

[500] Lib. vi. de Bello Neap. in Grævii Thesaur.

[501] Prodig. libel. c. cxiv.

[502] This representation of the Phlegræan Fields is reduced from part of Plate xxxi. of Sir William Hamilton's great work "Campi Phlegræi." The faithfulness of his colored delineations of the scenery of that country cannot be too highly praised.