60 7<J $0 



Aae 

 cl 



2000 



1000 



Acje 



60 7O go 90 /OO I/O I1O /3O 



Fig. 7. Beech; N. Germany; Sites I-V; Normal Yield of Main Stand 

 in cubic ft. per acre. Also points indicating at what age the average tree 

 attains a diameter of 8", 10", etc., and a height of 50 ft., 60 ft., etc. Only 

 wood 3" and over is here considered. 



156 



