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 SuRIES 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. 
‘he 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 
ollows: 
Prof. LommMe (University of Erlangen), | Prof. Lacaze-DuTuiERs, Zoology since 

Optics. (In press.) Cuvier. 
Rev. M. J. BERKELEY, M.A., F.L.S., | Prof. BertHetot, Chemical Synthesis. 
and M. Cooxr, M. A., LL. D., | Prof. J. RosenrHAt, General Physiology 
Fungi; thetr Nature, Influences, of Muscles and Nerves. - 
and Uses. (In press.) Prof. JAMEs D. Dana, M.A., LL. D., Ox 
Prof. W. KincGpon Cuirrorp, M. A., The Cephalization ; or, Head-Characters 
First Principles of the Exact Sctences ix the Gradation and Progress of 
explained to the non-mathematical, Life. 
Prof. T. H. Huxizty, LL. D., F.R.S., | Prof. S. W. Jonnson, M. A., Ox the Nu- 
Bodily Motion and Consctousness. trition of Plants. 
Dr. W. B. Carpenter, LL. D., F. R.S., | Prof. Austin Fuint, Jr.. M. D., Zhe 
The Physical Geography of the Sea. Nervous System and its Relation to 
Prof. WILLIAM OpLonG, F.R.S., The Old the Bodily Functions. 
Chemistry viewed from the New | Prof. W. D. WuitneEy, Modern Linguis- 
Standpoint. tic Science. 
W. Lauper Linpsay, M.D., F. R.S.E., | Prof. C. A. Younc, Ph. D. (of Dartmouth 
Mind in the Lower Animals. College), The Sun. 
Sir Joun Lussock, Bart., F.R.S., 7/e | Prof. BernstTEIn (University of Halle), 
Antiquity of Man. Physiology of the Senses. 
Prof. W. T. TuHisELtton Dyer, B. A., | Prof. FERDINAND Coun (Breslau Univer- 
B. Sc., Horm and Habit in Flower- sity), Thallophytes (Algee, Lichens, 
ing Plants. Fung). 
Mr. Jj. N. Lockyer, F.R.S., Spectrum | Prof. HERMANN (University of Zurich), 
Analysts. Respiration. : 
Prof. MicHaEL Foster, M. D., Proto- | Prof’ LEucKART (University of Leipsic), 
plasm and the Cell Theory. Outlines of Animal Organization. 
Prof. W. STANLEY JEvons, Money: and | Prof. LizBreIcH (University of Berlin), 
the Mechanism of Exchange. Outlines of Toxicology. 
H. Cuartton Bastian, M. D., F.R.S., | Prof. Kunpt (University of Strasburg), 
The Brain as an Organ of Mind. On Sound. 
Prof. A. C. Ramsay, LL. D., F. R.S., | Prof. REEs (University of Erlangen), Oz 
Earth Sculpture: Hills, Valleys, Parasitic Plants. 
Mountains, Plains, Rivers, Lakes, | Prof. STEINTHAL (University of Berlin), 
how they were produced, and how Outlines of the Science of Language. 
they have been destroyed. E. ALGLAVE (Professor of Constitutional 
Prof. RupoLteu Vircnow (Berlin Univer- and Administrative Law at Douai, and 
sity), Worbid Physiological Action. of Political Economy at Lille), Zhe 
Prof, CLAUDE BERNARD, Physical and Primitive Elements of Political Con- 
Metaphysical Phenomena of Life. stitutions. 
Prof. H. SatnTE-CLarrE DeviItLe, Az | P. Lorarn (Professor of Medicine, Paris), 
Introduction to General Chemistry. Modern Epidenitcs. 
Prof. Wurtz, Atoms and the Atomic | Prof. ScHtUTZENBERGER (Director of the 
Theory. Chemical Laboratory at the Sorbonne), 
Prof. Dr QuaATREFAGES, The Negro On Fermentatious. 
Races. Mons. DeBRay, Precious Aletals. 
