90 



Summarizing the studies of average growth, and grouping some- 

 what similar soil types together, the following lists show the rates on dif- 

 ferent soils for the trees studied. 



Upland Sandy Loams 



Species Cubic contents at 60 years 



Even-aged AU-aged 



Black walnut 51.5 



Tulip-poplar 26.0 



Black oak 27.1 



White oak 21.1 13.1 



Red oak 10. ti 



Basswood 11.2 



Elm 10.3 



Ash S.8 



Hard maple 6.4 



Hickory 6.1 



Beech 2.5 



Upland Yellow and Yellow-Gray Silt Loams 



Species Cubic contents at 60 years 



Even-aged All-aged 



White pine 63.6 



Tulip-poplar 30.3 



Red oak 17.8 15.5 



Black oak 16.0 13.6 



Shingle oak 11.5 



Ash 15.9 5.5 



Hickory 5.0 



Hard maple 11.6 2.3 



White oak 10.7 2.7 



Upland Sand 



Species Cubic contents at 60 years 



Even-aged All-aged 



White pine 18.0 



Black oak 13.6 



Helavy Loams — Illinoisan 



Species Cubic contents at 60 years 



Even-aged All-aged 



Black oak 8.1 



Post oak 5.1 5.9 



