2 The International Scientific Series.—(Continued.) 
15. FUNGI: Their Nature, Influences, Uses, etc. By M. C. Cooxz, M. A., 
LL.D. Edited by the Rev. M. J. Berkeley, M.A.,F.L.S. With 
109 Illustrations. $1.50. 
16. THE LIFE AND GROWTH OF LANGUAGE. By Professor 
Wittuam Dwiear Wuirney, of Yale College. $1.50. 
17%. MONEY AND THE MECHANISM OF EXCHANGE, By W. 
Srantey Jevons, M. A., E.R.S. $1.75. 
18. THE NATURE OF LIGHT, with a General Account of Physical 
Optics. By Dr. Eveznz Lommz. With 188 Illustrations and a 
Table of Spectra in Chromo-lithography. $2.00, 
19. ANIMAL PARASITES AND MESSMATES. By Monsieur Van 
BevEeDEN. With 83 Illustrations. $1.50. 
20. FERMENTATION, By Professor Scatrzensercer. With 28 Illus- 
trations. $1.50. 
21. THE FIVE SENSES OF MAN. By Professor Bernstemy. With 91 
Dlustrations. $1.75. 
22. THE THEORY OF SOUND IN ITS RELATION TO MUSIC. By 
Professor Przrro Biaserna, With numerous Illustrations. $1.50. 
23. STUDIES IN SPECTRUM ANALYSIS. By J. Norman Locxyer, 
F.R.8. With 6 Photographic Mustrations of Spectra, and numer- 
ous Engravings on Wood. $2.50. 
24, A HISTORY OF THE GROWTH OF THE STEAM-ENGINE. 
By Professor R. H. Toursron. With 163 Dlustrations. $2.50. 
25. EDUCATION AS A SCIENCE. By Arzexanper Baty, LL.D, 
$1.75. 
26. STUDENTS’ TEXT-BOOK OF COLOR; Or, Modern Chromatics. 
With Applications to Art and Industry. By Professor Oapen N. 
Roop, Columbia College. New edition. With 130 Illustrations. 
$2.00. 
27. THE HUMAN SPECIES. By Professor A. DE Srirenrsem, Mem- 
bre de l'Institut. $2.00. 
98, THE CRAYFISH: An Introduction to the Study of Zodlogy. By T. 
H. Hoxzzy, F.R.8. With 82 Illustrations. $1.75. 
29, THE ATOMIC THEORY. By Professor A. Wurtz. Translated by 
E. Cleminshaw, F.C.8. $1.50. 
New York: D. APPLETON & CO,, 1, 8, & 5 Bond Street, 
