SIR CHARLES LYELL, M. A. F. R. S. VICE-PRESIDENT OF THE GEOLOGICAL SOCIETY OF LONDON; AUTHOR OF "A MANUAL OF D. APPLETON & CO., 346 & 348 BROADWAY. M. DCCC. LIV. "Verè scire est per causas scire."-BACON. "The stony rocks are not primeval, but the daughters of Time."—LINNÆUS, 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. "The inhabitants of the globe, like all the other parts of it, are subject to change. It is not only the individual that perishes, but whole species. "A change in the animal kingdom seems to be a part of the order of Nature, and is visible in instances to which human power cannot have extended."-PLAYFAIR, Illustrations of the Huttonian Theory, § 413. |