istry 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. COOLEY,
Ph.D., Professor of Mathematics in Vassar College.
Cloth, 12mo, 448 pages. Illustrated $1.00
A new text-book in Physics for high schools, academies, and colleges. It
embodies a full and thorough treatment of the laws of physics, the best
methods in science teaching, the latest discoveries and applications in
physics, and a full course in laboratory practice. Special care has been
taken to select experiments which will not overtax the capacities of
beginners nor require expensive apparatus, but which at the same time
will call for systematic and original work and lead to accurate results.

Harrington's Physics for Grammar Schools
BY C.L. HARRINGTON, M.A. Cloth, 12mo, 123 pages. 50 cents
A practical text-book based on the natural or experimental method,
elementary enough for pupils in grammar schools, and affording a
thorough preparation for advanced study.

Appletons' School Physics
Cloth, 12mo, 552 pages $1.20
A thoroughly modern text-book on Natural Philosophy, which
reflects the most advanced pedagogical methods and the latest laboratory
practice.

Steele's Popular Physics
By J. DORMAN STEELE, Ph.D. Cloth, 12mo, 392 pages $1.00
A popular text-book, in which the principles of the science are
presented in such an attractive manner as to awaken and fix the attention
of every pupil.

Trowbridge's New Physics
By JOHN TROWBRIDGE, S.D. Cloth, 12mo, 387 pages $1.20
A thoroughly modern work, intended as a class manual of Phy