GEOLOGY

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SPOTTISWOODE AND CO., NEW-STREET SQUARE AND PARLIAMENT STREET

The stony rocks are not primeval, but the daughters of Time '-LINNEUS, Syst. Nat.
ed. 5, Stockholm, 1748, p. 219

'Amid all the revolutions of the globe the economy of Nature has been uniform, and her
laws are the only things that have resisted the general movement. The rivers and the rocks,
the seas and the continents, have been changed in all their parts; but the laws which direct
those changes, and the rules to which they are subject, have remained invariably the
same '-PLAYFAIR, Illustrations of the Huttonian Theory, § 374

TENTH AND ENTIRELY REVISED EDITION

IN TWO VOLUMES.-VOL. II.

Illustrated with Maps, Plates, and Woodcuts

LONDON

JOHN MURRAY, ALBEMARLE STREET

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