60 A MILL SCALE STUDY OP WESTERN YELLOW PINE. 



Value. 



Value of Grades Sawed From Immature Trees of Different Diameters 

 Breasthigh, Expressed in Dollars and Cents. 



DIAMETER BREASTHIGH INCHES 



FIG. 62. High grades. 



.0320 + .030& + .027c + .025d = Aval 



40.00 



22 24 



26 28 30 32 34 36 



DIAMETER BREASTHIGH INCHES 

 FIG. 63. Intermediate grades. 



.022e + .OlSf + .0180 + .018/t + .OOli = Bval 



38 40 42 44 



18 20 22 24 26 28 3O 32 34 36 38 4O 42 44 

 DIAMETER BREASTHIGH INCHES 



FIG. 64. Low grades. 



.009,; + .007& + 015g = Cval 



Aval + Bval + Cval = B = Value per tree. 



