Fig. 6i. GRAY BIRCH. 



Trunk 4-9 inthos in diameter. 



Fig. 65. RIVER BIRCH. 

 Trunks 6 inches in diameter 



Fig. 66. SLIPPERY ELM. 

 Trunk 26 inches in diameter. 



Fig. 67. SASSAFR.\S. 

 Trunk 26 inches in diameter. 



