Cloth, 8vo, 1087 pages. 1575 illustrations $5.00

This great work was thoroughly revised and entirely rewritten under the
direct supervision of its author, just before his death. It is
recognized as a standard authority, and is used as a manual of
instruction in all higher institutions of learning.

Le Conte's Compend of Geology

By JOSEPH LE CONTE, LL.D. Cloth, 12mo, 399 pages $1.20

Designed for high schools, academies, and all secondary schools.

Steele's Fourteen Weeks in Geology

By J. DORMAN STEELE, Ph.D. Cloth, 12mo, 280 pages $1.00

A popular book for elementary classes and the general reader.

Andrews's Elementary Geology

By E.B. ANDREWS, LL.D. Cloth, 12mo, 283 pages $1.00

Adapted for elementary classes. Contains a special treatment of the
geology of the Mississippi Valley.


_Copies of any of the above books will be sent, prepaid, to any address
on receipt of the price by the Publishers:_