AMERICAN NATURE SERIES (Continued) 



with Chapter on Anatomy of Birds by EiiEnERic A. Licas^ 

 Chief Curator Brooklyn Museum of Arts and Sciences, and edited 

 by RoBEUT RiDGWAY, Curator of Birds, U. S. National .Museum. 



REPTILES AND BATRACHIANS, by Lkonharh Stejnegek, 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. 



11. CLASSIFICATION OF NATURE 



Section A. Realms of Nature. Detailed treatment of various 

 departments in a literary and popular way. 8vo. TixlOj in. 



Already publisht : 

 FERNS, by Campuell E. Waters, of Johns Hopkins University. 



8vo, pp. xi+362. $3.00 net; by mail, $3.30. 



Section B. Identification Books — 



1. Library Series, very full descriptions. Hvo. 7^.xl(»i in. 



Already publisht : 

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

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



2. PocVet Series, " How to Know," brief and in portable shape. 



III. 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. 8vo. 6gx8i in. 



Already publisht : 

 THE BIRD: ITS FORM AND FUNCTION, by C. W. Bkkre, 



Curator of Birds in the New York Zool(>gical Park. Svo, 496 pp. 



$3.50 net; by mail, $3.80. 



Arranged for : 

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



Kki.i.ogg, Professor in the Iceland Stanford Junior University. 

 THE FISH: ITS FORM AND FUNCTION, by II. M. Smith, of 



the U. S. Bureau of Fisheries. 



