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LXXVI. Notices respecting New Boohs. 



Harpers Scientific Memoirs. Edited by J. S. Ames, Ph.D., 

 Professor of Physics in Johns Hopkins University. 15 volumes. 

 New York and London : Harper & Brothers, Publishers. 



\\^E heartily commend the enterprise of the publishers in issuing 

 '" this most timely series of reprints and translations of 

 classical scientific memoirs. The 15 volumes published include 

 the following : — 



I. The Free Expansion of Gases. Memoirs by Gay-Lussac, Joule, 

 and Joule and Thomson. Translated and edited by J. S. Ames, 

 Ph.D. 



II. Prismatic and Diffraction Spectra. Memoirs by Joseph von 

 Fraunhofer. Translated and edited by J. S. Ames, Ph.D. 



III. Rontgen Rays. Memoirs by Rontgen, Stokes, and J. J. 

 Thomson. Translated and edited by George E. Barker, LL.D. 



IV. The Modern Theory of Solution. Memoirs by Pfeffer, Van't 

 Hoff, Arrhenius, and Eaoult. Translated and edited by Harry C. 

 Jones, Ph.D. 



V. The Laws of Gases. Memoirs by Robert Boyle and E. H. 

 Amagat. Translated and edited by Carl Barus. 



VI. The Second Law of Thermodynamics. Memoirs by Carnot, 

 Clausius, and Thomson. Translated and edited by W. F. Magie, 

 Ph.D. 



VII. The Fundamental Laws of Electrolytic Conduction. Me- 

 moirs bv Faraday, Hittorf, and F. Koblrausch. Translated and 

 edited by H. M." Goodwin, Ph.D. 



VIII. The Effects of a Magnetic Field on Radiation. Memoirs 

 by Faraday, Kerr, and Zeernan. Edited by E. P. Lewis, Ph.D. 



IX. The Laws of Gravitation. Memoirs by Newton, Bouguer 

 and Cavendish ; together with abstracts of other important 

 memoirs. Translated and edited by A. Stanley Mackenzie, Ph.D. 



X. The Wave Theory of Light. Memoirs by Huygens, Young, 

 and Fresnel. Edited by Henry Crew, Ph.D. 



XI. and XII. The Discovery of Induced Electric Currents. Vol. 

 I. : Memoirs by Jeseph Henry. Vol. II. : Memoirs by Michael 

 Faraday. Edited by J. S. Ames, Ph.D. 



XIII. The Foundations of Stereo- Chemistry. Memoirs by Pasteur, 

 Van't Hoff, Lebel, and Wislicenus. Translated and edited by 

 George M. Richardson, Ph.D. 



XIV. The Expansion of Gases by Heat. Memoirs by Dalton, 

 Gay-Lussac, Eegnault and Chappuis. Translated and edited by 

 Wyatt W. Eandall, Ph.D. 



XV. The Laws of Radiation and Absorption. Memoirs by 

 Prevost, Stewart, Kirchhoff, and Ivirchhoff and Bnnsen. Trans- 

 lated and edited by D. B. Brace, Ph.D. 



The volumes are arranged on a uniform plan, which consists in 

 having a general preface by the editor on the subject dealt with in 



