Scientific Publications. 



THE HUMAN SPECIES. By A. Be Quateefageb, Professor of Anthro- 

 pology ill the Museum of Natural History, Paris. 12ino, cloth, $2.00. 



The work treats of the unity, origin, antiquity, and ori^nal localization of 

 the human species, peopling of the globe, acclimatization, primitive man, forma- 

 tion of the human races, fossil hum^n races, present human races, and the physi- 

 tal and psychological cnaracters of mankind. 



STUDENTS' TEXT-BOOK OE COIiOR ; or, MODERN CHROMAT- 

 ICS. With Applications to Art and Industry. With 130 Original Illus- 

 trations, and Frontispiece in Colors. By Ogden N. Eood, Professor of 

 Physics in Columbia College. 12mo, cloth, $2.00. 



" In this interesting book Professor Rood, who, as a distin^iished 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 accom- 

 plished artist as well as an authoritative expounder of science." — Edirdmrgfi 

 Bevmw, October, 1879, in an article on " The Philosophy of Color." 



EDUCATION AS A SCIENCE. By Alexaudee Bain, LL. D. lamo, cloth, 

 $1.76. 



*' This work must be pronounced the most remarkable discussion of educa- 

 tional problems wbich 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 bands of every school-teacher and friend of education throughout the 

 land." — New York Sun. 



A HISTORY OF THE GROWTH OF THE STEAM-ENGINE. By 



EoBEBT H. Thukston, A. M., C. E., Professor of Mechanical Engineering 

 in the Stevens Institute of Tecbnology, Hoboken, N. J., etc. With 168 

 IllustrationB, including 15 Portraits. 12mo, cloth, $2.50. 



" Professor Thnrston 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 wiU 

 agree that it could nave a no more amusing and intelligent historian than our 

 author."— iostoi Oazette. 



STUDIES IN SPECTRUM ANAI-TSIS. By J. NoKMAu Lookter, F. E. 8., 

 Correspondent of the Institute of Prance, etc. With 60 Illustrations. 12mo, 

 cloth, $2.50. 



" The study of spectrum analvsis is one fraught with a peculiar fascination, 

 and some of the author's experiments are exceedingly picturesque in their re- 

 sults. 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 

 jhe book until the last page is reached."— iVew York Evening Express. 



D. APPLETON & CO., Publishers, 



1, 3, & 6 Bond Stbbbt, Nbw York. 



