Cloth, 12mo, 244 pages 90 cents An interesting and instructive addition to the works on Natural History.
_Copies of any of the above books will be sent prepaid to any address, on receipt of the price, by the Publishers:_ American Book Company NEW YORK.

CINCINNATI.

CHICAGO * * * * * Text-Books in Geology Dana's Geological Story Briefly Told By JAMES D.DANA.Cloth, 12mo, 302 pages $1.15 A new edition of this popular work for beginners in the study and for the general reader.

The book has been entirely rewritten, and improved by the addition of many new illustrations and interesting descriptions of the latest phases and discoveries of the science.

In contents and dress it is an attractive volume either for the reader or student.
Dana's Revised Text-Book of Geology Edited by WILLIAM NORTH RICE, Ph.D., LL.D., Professor of Geology, Wesleyan University.