NATURE BOOKS 



OUR TREES 



HOW TO KNOW THEM 



Photographs from Nature 



Bj ARTHUR I. EMERSON 



With a guide to their recognition at any season 



of the year, and notes on their characteristics, dis- 



tribution, and culture 



By CLARENCE M. WEED, D.Sc. 



140 Illustrations 



Small Quarto Cloth, &J.OO Net. 



M 



Birds in Their 

 Relations to Man 



CLARENCE M. WEED and NED DEARBORN 



Each family of birds is assigned the performance 

 of certain special functions in the economy of 

 nature, and it is to a study of these functions that 

 this volume is devoted. The authors thoroughly 

 outline the services rendered by the various bird 

 families, making it clear at the same time that 

 the investigation by which their information has 

 been secured is the result of the closest scientific 

 methods. 



Accurately and lavishly illustrated with full-page 



flates and drawings in the text. 



Cloth, $2.50 net. 



}. B. LIPPINCOTT COMPANY 



PUBLISHERS :: :: :: PHILADELPHIA 



