FOR BUTT LOGS. 



105 



Value of Grades Sawed From 16' Butt Logs of Mature Trees of Dif- 

 ferent Diameters Breastliigli, Expressed in Dollars and Cents. 



18.00 



16.OO 



14.00 



12.00 



10.00 



6.00 



4.00 



18 20 22 24 26 28 30 32 34 36 38 40 42 

 DIAMETER BREASTHIGH INCHES 



FIG. 148. High grades. 



.032< + .030V + -027c/ + .025d/ = Aval/. 



6.00 



4.00 



2.00 



18 2O 22 24 26 28 3O 32 34 36 38 4O 42 44 

 DIAMETER BREASTHIGH INCHES 



FIG. 149. Intermediate grades. 



.022e/ + .018/V + .018#/ + .018V + -OOTi/ = Bval/. 



8.00 



6.00 



4.00 



2.00 



18 2O 22 24 26 28 3O 32 34 36 38 4O 42 

 DIAMETER BREASTHIGH INCHES 



FIG. 150. Low grades. 

 .009 L' -4- .007k' -4- .Olfvy ' = dual' 



