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 Physics for colleges and advanced preparatory schools.
Hammel's Observation Blanks in Physics By WILLIAM C.A.