Scientific Publications, 



t:IE human species. By A. De Quatrefaqes, Professor of Anthi-o- 

 pology in the Museum of Natural History, Paris. 12mo, cloth, $2.00. 



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

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

 tion of the human races, fossil human races, present human races, and the physi- 

 sal and psychological characters of mankind. 



STUDENTS' TEXT-BOOK OF COI.OR ; or, MODERN CHROMAT- 

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

 trations, 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 distincuished Professor 

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

 autliority 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." — Edinburgh 

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



EDUCATION AS A SCIENCE. By Alexander Bain, LL. D. 12mo, cloth, 

 $1.75. 



" This work must be pronoanced tbe most remarkable discussion of educa- 

 tional 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 every school-teacher and friend of education throughout the 

 laud."— A'trW York Sun. 



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



Robert H. Thurston, A. M., C. E., Professor of Mechanical Ensineering 

 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 

 /ollowed 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 desidenitum, 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. 



iSTUDIES IN SPECTRUM ANALYSIS. By J. Norman Lockter. F. R. S , 

 Correspondent of the Institute of France, etc. W'ith CO Illnstratious. 12mo, 

 cloth, $2.50. 



"The study of spectrum analysis is one fraught with a pecnliar fascination, 

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

 sults. They are so lucidly described, too. that the reader keeps on. from page 

 to pase. never flairffins in interest in the matter befor.' him, nor pnttiug down 

 'be book until the last page is reaclvcd."'— AVw York Evening Exirress. 



D. APPLETON & CO., Publishers, 



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



