FOR WHOLE TREES. 



55 



2500 r-r 



2000 



18 20 22 24 26 28 3O 32 34 36 38 4O 42 

 DIAMETER BREASTHIGH INCHES 



FIG. 53. Total of low grades sawed from mature trees. 



NOTE. Av t 4. B-U! 4. Cvi = A! = Lumber actually sawed out at mill. Curve AI is 

 shown in Fig. 13. 



