Publisher's Synopsis
Excerpt from Principles of Geology, Vol. 1 of 2: Or the Modern Changes of the Earth and Its Inhabitants, Considered as Illustrative of Geology
As only three years have elapsed since the last edition of this Second Volume of the Principles was published, I have been able to reprint it with less alteration than was required in the First Volume, between which and the preceding edition there had been an interval of five years.
I have followed the rule adopted in my First Volume of reprinting the Preface to the tenth edition, by which the reader will be directed to those numerous and important additions and corrections which I found necessary in consequence of the progress of the science during the fifteen years which separated the ninth and tenth editions. Although the pages after the first two hundred differ slightly in the present edition, they are not so much altered as to render it difficult to refer to them.
I subjoin a list of the most important points on which I have introduced new information in the present edition.
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