54 



A MILL SCALE STUDY OP WESTERN YELLOW PINE. 



2000 



1500 



1OOO 



500 



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



DIAMETER &REASTHIGH INCHES 



FIG. 52. Total of low grades sawed from immature trees. 



. 



NOTE. Av + Bv 4- Cv A = Lumber actually sawed out at mill. Curve A is 

 shown in Fig. 11. 



