FOR WHOLE TREES. 



57 



Grades Sawed From Mature Trees of Different Diameters Breasthigh, 

 Expressed in Per Cent of Total Sawed Out. 



50 





30 



20 



10 



.1 



18 



20 22 



24 26 



28 



3O 32 



34 



36 



4O 42 





DIAMETER BREASTHIGH INCHES 



100 Avj_ 



FIG. 57. High grades. 



18 



20 



22 



24 26 



28 



3O 



32 



34 



36 



40 42 



DIAMETER BREASTHIGH INCHES 



JOO Bv 

 FIG. 58. Intermediate grades. 



Ai 



90 



8O 



50 



20 



10 



18 



20 



22 



26 28 30 32 34 36 

 DIAMETER BREASTHIGH INCHES 



40 42 



