Bui. 24, Div. of Forestry, U. S. Dept. of Agr. 



Plate II. 



c 



■D 



H 

 C 

 33 



Z 



3J 

 O 

 O 



m 



CO 



33 



Z 



o 



i- - 



-< 



?^ 



TJz 



z I 



tn O 



z 



? c 



i O 



z I 



O r 



H < 



in 



• I 



m 



cn 



> 



o 

 o 



z 

 tn 



-I 



> 

 H 

 m 



-t 

 I 

 m 



03 



O 



S. ' ••:^' 







■-;^iUV.' , 



^1 



* 



ife- 







