ACKNOWLEDGMENTS 



THE author hereby expresses 

 her appreciation of the cour- 

 tesy shown her by Doubleday 

 Page & Co. in permitting her to re- 

 print Trees at Leisure from Country 

 Life in America, for which it was 

 copyrighted. 



The author also wishes to express 

 her thanks to Professor Ralph W. 

 Curtis for the use of his photographs 

 of the Bird Cherry, Black Locust, 

 Lombardy Poplar, Tamarack, White 

 Ash, and Shagbark Hickory; to 

 Harry H. Knight for the photo- 

 graph of the Hemlock bole ; to Lewis 

 B. Hendershot for that of the White 

 Oak; and to Verne Morton for his 

 painstaking efforts in taking photo- 

 graphs for all the other illustrations 

 here used. 



