Volume 2

Principles of geology : being an inquiry how far the former changes of the earth's surface are referable to causes now in operation. / By Charles Lyell ...

  • Lyell, Charles, Sir, 1797-1875.
Date:
1834
Catalogue details

Licence: Public Domain Mark

Credit: Principles of geology : being an inquiry how far the former changes of the earth's surface are referable to causes now in operation. / By Charles Lyell ... Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

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    tract of fertile land, of a very different aspect, inter- venes between the present sea-beach, and what was evidently the ancient line of coast. The inland cliff' may be seen opposite the small island of Nisida, about two miles and a half south-east of Puzzuoli, where, at the height of thirty-two feet above the level of the sea, Mr. Babbage observed an ancient mark, such as might have been worn by the waves; and, upon further examination, discovered that, along that line, the face of the perpendicular rock, consisting of very hard tuff, was covered with barnacles (Ualanus sulcatus, Lamk.), and drilled by boring testacea. Some of the hollows of the Litho- domi contained the shells ; while others were filled with the valves of a species of Area. * Nearer to Puzzuoli, the inland cliff is eighty feet high, and as perpendicular as if it was still undermined by the waves. At its a No. 37. h. Ancient cliff now inland. c. Terrace composed of recent submarine deposit. base, a new deposit, constituting the fertile tract above alluded to, attains a height of about twenty feet above * Air. Jlabbage examined this spot in company with Mr. Head, in June, 1828, and has shown me numerous specimens of the shells collected here, and in the Temple of Serapis. /