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 Sicries 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 

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

 in Europe, arranging with authors and publishers. The forthcoming volumes are as 

 follows : 



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 ; their Nature, Iiiflttctices, 

 and Uses. (In press.) 



Prof. W. KiNGDON Clifford, M. A., The 

 First Principles 0/ the Exact Sciences 

 explairied to the 7ion-inathe7natical. 



Prof T. H. Huxley, LL. D., F. R. S., 

 Bodily Motion and Coiisciotcsness. 



Dr. W. B. Carpenter, LL. D., F. R. S., 

 The Physical Geography ojf the Sea. 



Prof William Odlong, F. R. S., The Old 

 Cheinistry viewed from the New 

 Standpoint, 



W. L.^uder Lindsay, M. D., F. R. S. E., 

 Mind i}t the Louver A nijnals. 



Sir John Lubbock, Bart., F. R. S., The 

 A ntiqnity of Man. 



Prof W. T. Th'iselton Dyer, B. A., 

 B. Sc, Form and Habit in Flower- 

 ing 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 0/ 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 a7id 

 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 iMtiscles and Nerves. 



Prof. James D. Dana, M. A., LL. D., On 

 Cephalization ; or, Head-Characters 

 in the G}-adation a7td 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 Eelatiott to 

 the Bodily Functiotis. 



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 {Algtse, Lichens, 

 Fungi). 



Prof. Hermann (University of Zurich), 

 Respiration. 



Prof Leuckart (University of Leipsic), 

 Outlines ofAni?nal Orgafiization. 



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), TJie 

 Primitive Elemetits of Political Con- 

 stitutions. 



P. Lorain (Professor of Medicine, Paris), 

 Modern Epidemics. 



Prof Schutzenberger (Director of the 

 Chemical Laboratory at the Sorbonne)* 

 On Ferinentatiofis. 



Mons. Debray, Precious Metals, 



