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THE ELECTRIC LIGHT: ITS IIISTOPwY, PPwODUCTION", AND 

 APPLICATIONS. By Em. Alolave and J. Poulard. Translated 

 from the French hy T. O'Conor Sloane. Edited, with Notes and 

 Additions, by C. M. Lungren. With 250 Illustrations. 8vo. Cloth, 

 $5.00. 



"Not one of the recent scientific publications was more needed or is more 

 likely to be eagerly welcomed than a clear, exhaustive, and authoritative accoimt 

 of the application of electricity to the production of light. We are indebted to 

 Messrs. Appleton for issuing, in a large volume of 450 pages, illustrated with 

 several hundred woodcuts, an English translation of the well-known treatise by 

 MM. Alglave and Boulard." — New York Sun. 



ELECTRICITY AND MAGNETISM. By Fleemixg Jenkin, Pro- 

 fessor of Engineering in the University of Edinburgh. Illustrated, 

 and Index. With Appendix on the Telephone and Microphone. 

 12mo. Cloth, $1.50. 



" The plan followed in this book is as follows : First, a general svnthetical view 

 of the science has been given, in which the main phenomena are described and 

 the terms employed explained. If this portion of the work can be mastered, the 

 student will then be re?dily able to understand what follows, viz., the description 

 of the apparatus used to measure electrical magnitudes and to produce electricity 

 imder various conditions. The general theory of electricity is permanent, depend- 

 ing on no hypothesis, and it has been the author's aim to state this general theory 

 in a connected manner, and in such simple form that it might be readily under- 

 stood by practical men." — Frorn the Introduction. 



ELEMENTARY TREATISE ON NATURAL PHILOSOPHY. 



By A. Peivat Deschanel, formerly Professor of Physics in the Lycee 

 Louis-le-Grand, Inspector of the Academy of Paris. Translated and 

 edited, with Extensive Modifications, by J. D. Everett, Professor of 

 Natural Philosophy in the Queen's College, Belfast. Sixth edition, 

 revised, complete in Fonr Parts. Illustrated hy 783 Engravings on 

 Wood, and Three Colored Plates. 



Part I. Mechanics, Hydeostatics, a;s-d Pneumatics. Cloth, $1.50. 



Part II. Heat. Cloth, $1.50. 



Part III. Electricity and Magnetism. Cloth, $1.50. 



Part lY. Sound and Light. Cloth, $1.50. 



Complete in one volume, 8vo, with Problems and Index. Cloth, $5.70. 



" Systematically arranged, clearly written, and admirably illustrated, showing 

 no less than 783 engravings on wood and three colored plates, it forms a model 

 work for a class of experimental physics. Far from losing in its English dress 

 any of the qualities of matter or style which distinguished it in its original form, 

 it may be said to have gained in the able hands of Professor Everett, both by way 

 of arrangement and of incorporation cf fresh matter, without parting in the trans- 

 lation with any of the freshness or force of the author's tcxt.^^ — Sat ur da y Review. 



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