D. APPLETON & 00,'S PUBLICATIONS. 



THE HUMAN SPECIES. By A. DE QUATREFAGES, Professor of 

 Anthropology in the Museum of Natural History, Paris. 12ino. 

 Cloth, $2.00. 



The work treats of the unity, origin, antiquity, and original localization of the 

 human species, peopling of the globe, acclimatization, primitive man, formation of the 

 human races, fossil human races, present human races, and the physical and psycho- 

 logical characters of mankind. 



STUDENT'S TEXT-BOOK OF COLOR; or, MODERN 

 CHROMATICS. With Applications to Art and Industry. With 

 130 Original Illustrations, and Frontispiece in Colors. By OGDEN 

 N. ROOD, Professor of Physics in Columbia College. 12mo. Cloth. 

 $2.00. 



"In this interesting book Professor Rood, who as a distinguished Professor of 

 Physics in Columbia College, United States, must be accepted as a competent authority 

 on the branch of science of which he treats, deals briefly and succinctly with what 

 may be termed the scientific rationale of his subject. But the chief value of his work 

 is to be attributed to the fact that he is himself an accomplished artist as well as an au- 

 thoritative expounder of science." Edinburgh Review, October, 1879, in an article 

 on " The Philosophy of Color" 



EDUCATION AS A SCIENCE. By ALEXANDER BAIN, LL. R 



12mo. Cloth, $1.75. 



"This work must be pronounced the most remarkable discussion of educational 

 problems which has been published in our day. We do not hesitate to bespeak for it 

 the widest circulation and the most earnest attention. It should be in the hands of 

 very school-teacher and friend of education throughout the land." New York Sun. 



A HISTORY OF THE GROWTH OF THE STEAM- 

 ENGINE. By ROBERT H. THURSTON, A. M., C. E., Professor of 

 Mechanical Engineering in the Stevens Institute of Technology, 

 Hoboken, N. J., etc. With 163 Illustrations, including 15 Portraits. 

 12mo. Cloth, $2.50. 



" Professor Thurston almost exhausts his subject ; details of mechanism are followed 

 by interesting biographies of the more important inventors. If, as is contended, the 

 steam-engine is the most important physical agent in civilizing the world, its history 

 is a desideratum, and the readers of the present work will agree that it could have a 

 no more amusing and intelligent historian than our author." .Boston Gazette. 



STUDIES IN SPECTRUM ANALYSIS. By J. NORMAN LOCK- 

 TER, F. R. S., Correspondent of the Institute of France, etc. With 

 60 Illustrations. 12mo. Cloth, $2.50. 



"The Btudyof spectrum analysis is one fraught with a peculiar fascination, and 

 some of the author's experiments are exceedingly picturesque in their results. They 

 are so lucidly described, too, that the reader keeps on, from page to page, never 

 flagging in interest in the matter before him, nor putting down the book until the last 

 page is reached." New York Evening Express. 



New York : D. APPLETON & CO., 1, 3, & 5 Bond Street. 



