40 



A MILL SCALE STUDY OF WESTERN YELLOW PINE. 



Curves showing average volume in board feet of each grade actually "sawed 

 out" at mill, from merchantable portion of immature western yellow pine 

 trees of different diameters breasthigh. 



800 



High Grades Sawed From Immature Trees. 



22 



26 30 34 38 



DIAMETER BREASTHIGH INCHES 



FIG. 14. C. and Better, 6/4". 



42 



46 



400 



200 



22 



26 30 34 38 



DIAMETER BREASTHIGH INCHES 



FIG. 15. Moulding stock. 



42 



46 



