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CHAMBERLIN & SALISBURY’S

GEOLOGY

By Thomas C. Chamberlin and Rollin D. Salisbury, Professors in the University of Chicago. (American Science Series.) 2 vols. 8vo.

Vol. I. Geological Processes and their Results. xix + 654 pp. $4.00.

Vol. II. Earth History. [In preparation.]

This is a notable scientific work by two of the highest authorities on the subject in the United States, and yet written in a style so simple that it can be clearly understood by the intelligent reader who has had little previous training in the subject.

Chas. D. Walcott, Director of U. S. Geological Survey:—I am impressed with the admirable plan of the work and with the thorough manner in which geological principles and processes and their results have been presented. The text is written in an entertaining style and is supplemented by admirable illustrations, so that the student cannot fail to obtain a clear idea of the nature and work of geological agencies, of the present status of the science, and of the spirit which actuates the working geologist.