120 



A MILL SCALE STUDY OF WESTERN YELLOW PINE. 



A Comparison of Quality of Top Logs, Whole Trees, and Butt Logs. 



Diagrams showing the high, intermediate, and low grades, sawed 

 from top logs, ivhole trees, and butt logs, of immature trees of diffen /// 

 diameters breasthigh, expressed in per cent of total sawed out. 



100 



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



DIAMETER BRFASTHJ^H INCHED 



FIG. 193. Top logs. Ap" + Bp" -f Cp" 100%. 



36 38 4O 42 



DIAMETER BREASTHIGH INCHES 



FIG. 194. Whole trees. Ap + Bp -f Cp = 100%. 



1OO 



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



