THE
Elements of Natural Philosophy

By E. J. HOUSTON, A.M.,
Professor of Physics and Physical Geography in the Central High School, Philadelphia, Pa.

This book is intended for Graded Schools, Academies, Seminaries, Normal Schools, etc. It gives the elements of the science in a concise form and in logical sequence, so that the book forms a system of Natural Philosophy, and not a mere collection of disconnected facts. It is fully “up to the times” in every respect, and gives full descriptions of the more important discoveries lately made in Physical Science; the Electric Light, the Telephone, the Microphone, the Phonograph, etc., are all described and illustrated. An examination of the work will show that no expense has been spared to bring it up to the highest standard as regards illustration and typography.

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