Cloth, 12mo, 379 pages $1.20 A scientific book for high schools and colleges.
Cooley's New Elementary Chemistry for Beginners By LEROY C.COOLEY, Ph.D.Cloth, 12mo, 300 pages 72 cents A book of experimental chemistry for beginners.
Steele's Popular Chemistry By J.DORMAN STEELE, Ph.D.Cloth, 12mo, 343 pages $1.00 A popular treatise for schools and private students.
Youmans's Class-Book of Chemistry By E.L.YOUMANS, M.D.Revised by W.J.Youmans, M.D.
Cloth, 12mo, 404 pages $1.22 For schools, colleges, and general reading.
Brewster's First Book of Chemistry By MARY SHAW-BREWSTER.

Boards, 12mo, 144 pages 66 cents An elementary class-book for beginners in the study.
Armstrong and Norton's Laboratory Manual of Chemistry By JAMES E.ARMSTRONG and JAMES H.NORTON.
Cloth, 12mo, 144 pages 50 cents A brief course of experiments in chemistry, covering about forty weeks' work in the laboratory.
Cooley's Laboratory Studies in Chemistry By LEROY C.COOLEY, Ph.D.Cloth, 8vo, 144 pages 50 cents A carefully selected series of 151 experiments, designed to teach the fundamental facts and principles of chemistry for secondary schools.
Keiser's Laboratory Work in Chemistry By EDWARD H.KEISER, Ph.D.Cloth, 12mo, 119 pages 50 cents A series of experiments in general inorganic chemistry, intended to illustrate and supplement the work of the class-room.
Qualitative Chemical Analysis of Inorganic Substances As practiced in Georgetown College, D.C.
Cloth, 4to, 61 pages $1.50 Designed to serve as both text-book and laboratory manual in Qualitative Analysis.
_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 * * * * * ~Physics~ Cooley's Student's Manual of Physics For the Study Room and Laboratory.

By L.C.