NEW YORK, BOSTON, CHICAGO, SAN FRANCISCO.

PHYSICS.

Quackenbos's Natural Philosophy. Embracing the most Recent Discoveries in the Various Branches of Physics. 12mo. 455 pages.

The revised edition of this standard text-book continues to be a favorite in the schools. Its numerous illustrations (338 in number) and full descriptions of experiments adapt it specially for use in institutions that have little or no apparatus, and it is particularly happy in showing the application of scientific principles in every-day life.

Ganot's Natural Philosophy. For Schools and General Readers. Translated and edited by E. Atkinson, Ph.D., F.C.S. Revised edition. 12mo. Copiously illustrated. 575 pages.

Arnott's Elements of Physics; or, Natural Philosophy. Seventh edition, edited by Alexander Bain, LL.D., and Alfred Swaine Taylor, M.D., F.R.S. 873 pages.

Elementary Treatise on Natural Philosophy. By A. Privat Deschanel, formerly Professor of Physics in the Lycée Louis-le-Grand, Inspector of the Academy of Paris. Translated and edited, with Extensive Additions, by J. D. Everett, Professor of Natural Philosophy in the Queen's College, Belfast. In Four Parts. 12mo. Flexible cloth. Part I. Mechanics, Hydrostatics, and Pneumatics. Part II. Heat. Part III. Electricity and Magnetism. Part IV. Sound and Light. Complete in one volume, 8vo. 1,156 pages. Illustrated with 783 fine Engravings on Wood and Three Colored Plates.

Science Primer: Physics. 18mo. Flexible cloth. 135 pages.

Experimental Series. By Alfred M. Mayer and Charles Barnard.

Light: A Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Light. By Alfred M. Mayer and Charles Barnard. 12mo. 112 pages.