[713] This view is taken from Sir W. Hamilton, Campi Phlegræi, plate 26.
[714] This spot here indicated on the summit of the cliff is that from which Hamilton's view, plate 26, Campi Phlegræi (reduced in [fig. 88], p. 509) is taken, and on which, he says, Cicero's villa, called the Academia, anciently stood.
[715] On the authority of Captain W. H. Smyth, R. N.
[716] Dissertazione sulla Sagra Archittetura degli Antichi.
[717] This appears from the measurement of Captain Basil Hall, R. N., Proceedings of Geol. Soc., No. 38, p. 114; see also Patchwork, by the same author, vol. iii. p. 158. The fact of the three standing columns having been each formed out of a single stone was first pointed out to me by Mr. James Hall, and is important, as helping to explain why they were not shaken down.
[718] Modiola lithophaga, Lam. Mytilus lithophagus, Linn.
[719] Serpula contortuplicata, Linn., and Vermilia triquetra, Lam. These species, as well as the Lithodomus, are now inhabitants of the neighboring sea.
[720] Brieslak, Voy. dans la Campanie, tom. ii. p. 167.
[721] Ed. Journ. of Science, new series, No. II. p. 281.
[722] Sul Tempio di Serap. ch. viii.