AMERICAN NATURE SERIES (Continued) 



with Chapter on Anatomy of Birds by FREDERIC A. LUCAS, 

 Chief Curator Brooklyn Museum of Arts and Sciences, and edited 

 by ROBERT RIDGWAY, Curator of Birds, U. S. National Museum. 



REPTILES AND BATRACHIANS, by LEONHARD STEJXEGER, Cura- 

 tor of Reptiles, U. S. National Museum. 



Section B. A Shorter Natural History, mainly by the Authors 

 of Section A, preserving its popular character, its proportional treat- 

 ment, and its authority so far as that can be preserved without its 

 fullness. Size not yet determined. 



II. CLASSIFICATION OF NATURE 



Section A. Realms of Nature. Detailed treatment of various 

 departments in a literary and popular way. 8vo. 7^x10^ in. 

 Already publisht : 



FERNS, by CAMPBELL E. WATERS, of Johns Hopkins University. 



8vo, pp. xi+362. .$3.00 net; by mail, 83.30. 



Section B. Identification Books 



1. Library Series, very full descriptions, Svo. T^xlO^ in. 



Already publisht : 



NORTH AMERICAN TREES, by N. L. BRITTON-, Director of the 

 New York Botanical Garden. $7.00 net; carriage extra. 



2. Pocket Series, " How to Know,*' brief and in portable shape. 



HI. FUNCTIONS OF NATURE 



These books will treat of the relation of facts to causes and 

 effects of heredity in organic Nature, and of the environment in 

 all Nature. Svo. 6x8| in. 



Already publisht : 



THE BIRD : ITS FORM AND FUNCTION, by C. AV. BEEBE, 

 Curator of Birds in the New York Zoological Park. Svo, 496 pp. 

 $3.50 net; by mail, S3. 80. 

 Arranged for : 



THE INSECT: ITS FORM AND FUNCTION, by VERNOX L. 

 KELLOGG, Professor in the Leland Stanford Junior Universitv. 



THE FISH: ITS FORM AND FUNCTION, by H. M. SMITH, of 

 the U. S. Bureau of Fisheries. 



