/4-OOO C.C-t 

 /3000 



SO 60 70 SO <?0 /OO //O 



6000 



//O 



Fig. 5. White Fir; South Germany; Sites I-IV; Normal Yield of 

 Main Stand in cubic feet per acre. Also the points indicating at what age 

 the average tree attains a diameter of 8", 10", etc., and a height of 60 ft., 

 70 ft., etc. Only wood 3" and over is here considered. 



154 





