International Scientific Series. 



D. APPLETON & Co. have the pleasure of announcing that they have made arrange- 

 ments for publishing, and have recently commenced the issue of, a SKRIES OF POPULAR 

 MONOGRAPHS, or small works, under the above title, which will embody the results of 

 recent inquiry in the most interesting departments of advancing science. 



The character and scope of this series will be best indicated by a reference to the 

 names and subjects included in the subjoined list, from which it will be seen that the 

 cooperation of the most distinguished professors in England, Germany, France, and the 

 United States, has been secured, and negotiations are pending for contributions from 

 other eminent scientific writers. 



The works will be issued in New York, London, Paris, Leipsic, Milan, and St. 

 Petersburg. 



The INTERNATIONAL SCIENTIFIC SERIES is entirely an American project, and was 



" o spent the greater part of a year 

 The forthcoming volumes are as 



originated and organized by Dr. E. L. Youmans, who spent the greater part of a year 

 in Europe, arranging with authors and publishers. T" 



follow 



Prof. LOMMEL (University of Erlangen), 



Optics. (In press.) 

 Rev. M. J. BERKELEY, M. A., F. L. S., 



and M. COOKE, M. A., LL. D., 



Fungi; thtir Nature, Influences, 



and Uses. (In press.) 

 Prof. W. KINGDOM CLIFFORD, M. A., The 



First Principles of the Exact Sciences 



explained to the non-mathematical. 

 Prof. T. H. HUXLEY, LL. D., F. R. S., | 



Bodily Motion and Consciousness. 

 Dr. W. B. CARPENTER, LL. D., F. R. S., i 



The Physical Geography of the Sea. \ 

 Prof. WILLIAM ODLONG, F. R. S., The Old \ 



Chemistry viewed from the New j 



Standpoint. 

 W. LAUDER LINDSAY, M. D., F. R. S. E., 



Mind in the Lower A nimals. 

 Sir JOHN LUBBOCK, Bart, F. R. S., The 



A ntiquity of Man. 

 Prof. W. T. THISELTON DYER, B. A., 



B. Sc., Form and Habit in Flower- 



i?ig Plants. 

 Mr. J. N. LOCKYER, F. R. S., Spectrum 



A nalysis. 



Prof. MICHAEL FOSTER, M. D., Proto- 

 plasm and the Cell Theory. 

 Prof. W. STANLEY JEVONS, Money : and 



the Mechanism of Exchange. 

 H. CHARLTON BASTIAN, M. D., F. R. S., 



The Brain as an Organ of Mind. 

 Prof. A. C. RAMSAY, LL. D., F. R. S., 



Earth Sculpture: Hills, Valleys, 



Mountains, Plains, Rivers, Lakes; 



how they -were produced, and how 



they have been destroyed. 

 Prof. RUDOLPH VIRCHOW (Berlin Univer- 

 sity), Morbid Physiological Action. 

 Prof. CLAUDE BERNARD, Physical and 



Metaphysical Phenomena of Life. 

 Prof. H. SAINTE-CLAIRE DEVILLE, An 



Introduction to General Chemistry. 

 Prof. WURTZ, Atoms and the Atomic 



Theory. 

 Prof. DE QUATREFAGES, The Negro 



Races. 



Prof. LACAZE-DUTHIERS, Zoology since 

 Cuvier. 



Prof. BERTHELOT, Chemical Synthesis. 



Prof. J. ROSENTHAL, General Physiology 

 of Muscles and Nerves. 



Prof. JAMESD. DANA, M. A., LL. D., On 

 Cephalization ; or, Head-Characters 

 in the Gradation and Progress of 

 Life. 



Prof. S. W. JOHNSON, M. A., On the Nu- 

 trition of Plants. 



Prof. AUSTIN FLINT, Jr., M. D., The 

 Nervous System and its Relation to 

 the Bodily Functions. 



Prof. W. D. WHITNEY, Modern Linguis- 

 tic Science. 



Prof. C. A. YOUNG, Ph. D. (of Dartmouth 

 College), The Sun. 



Prof. BERNSTEIN (University of Halle), 

 Physiology of the Senses. 



Prof. FERDINAND COHN (Breslau Univer- 

 sity), Thallophytes (Algae, Lichens, 

 Fungi). 



Prof. HERMANN (University of Zurich), 

 Respiration. 



Prof. LEUCKART (University of Leipsic), 

 Outlines of A nimal Organization. 



Prof. LIEBREICH (University of Berlin), 

 Outlines of Toxicology. 



Prof. KUNDT (University of Strasburg), 

 On Sound. 



Prof. REES (University of Erlangen), On 

 Parasitic Plants. 



Prof. STEINTHAL (University of Berlin), 

 Outlines of the Science of Language. 



E. ALGLAVE (Professor of Constitutional 

 and Administrative Law at Douai, and 

 of Political Economy at Lille), The 

 Primitive Elements of Political Con- 

 stitutions. 



P. LORAIN (Professor of Medicine, Paris), 

 Modern Epidemics. 



Prof. ScHpTZENBERGER (Director of the 

 Chemical Laboratory at the Sorbonne), 

 On Fermentations. 



Mons. DEBRAY, Precious Metals. 



