AMERICAN NATURE SERIES (Continued) 



REPTILES AND BATRACHIANS, by Leonhard Stejneger, 

 Curator 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 



1. Library Series, very full descriptions. 8vo. 7jxl0| in. 



Already publisht: 



NORTH AMERICAN TREES, by N. L. Brittok, Director of the 

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



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

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



2. Pocket Series, Identification Books — "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 and the relations of organism to environment. 

 8vo. 6§x8$ in. 



Already publisht: 



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

 Curator of Birds in the New York Zoological Park. 8vo, 496 pp. 

 $3.50 net; by mail, $3.80. 



Arranged for: 



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

 Kellogg, Professor in the Leland Stanford Junior University. 



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

 the U. S. Bureau of Fisheries. 



IV. WORKING WITH NATURE ' 



How to propagate, develop, care for and depict the plants and 

 animals. The volumes in this group cover such a range of subjects 

 that it is impracticable to make them of uniform size. 



Already publisht: 



NATURE AND HEALTH, by Edward Curtis, Professor Emeritus 

 in the College of Physicians and Surgeons. 12mo. $1.35 net; 

 by mail, $1.37. 



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