APPLETONS’ SCIENCE TEXT-BOOKS. 
The following works of this new series will be im- 
mediately issued ; others are to follow: 
The Elements of Chemistry. 
By Pror. F, W. CLARKE, 
Chemist of the United States Geological Survey. 
The Essentials of 
Anatomy, Physiology, and Hygiene. 
By ROGER S. TRACY, M.D., 
Author of ‘‘ Handbook of Sanitary Information for Householders,” 
Sanitary Inspector of the New York City Health Department. 
A Compend of Geology. 
By JOSEPH LE CONTE, 
Professor of Geology and Natural History in the University of 
‘alifornia ; author of ‘‘ Elements of Geology,’’ etc. 
Elements of Zodlogy. 
By C. F. HOLDER, 
Fellow of the New York Academy of Sciences, Corresponding 
Member of the Linnzan Society, etc. ; 
anp J. B. HOLDER, M.D., © 
Curator of Zodlogy of American Museum of Natural History, 
‘entral Park, New York. 
