34 



Journal of the Mitchell Society. 



[March 



Sweet Gum, 

 Dogwood, 

 Honey Locust, 

 Tree of Heaven, 

 China Tree, 

 Paulownia, 

 Crab Wood, 

 Wild Lime, 



Liquidambar Styraciflua, L 2.24 



Cornus florida, L 2.37 



Gleditsia triacanthos, L 2.47 



Ailanthus glandulosa, Desf. 2.52 



Melia Azederach, L 2.35 

 Paulownia tomentosa, (Thunb) 2.40 



Gymanthes lucida, 2.95 



Fagara flava, 2.19 



The average is 2.39 per cent. I wish to thank Mr. Preston 

 Irwin for assistance in making the determinations. 

 Chapel Hill, N. C. 



