166 



A MILL SCALE STUDY OF WESTERN YELLOW PINE. 



800 



700 



DIAMETER BREASTHIGH INCHES 



FIG. 211. A diagram showing the average total yield in cubic feet of lumber and 

 by-products from mature western yellow pine trees of different diameters breasthigh. 



(Values given in Table 37.) 



Average total volume in 

 cubic feet of wood and 

 bark between stump and 

 height where the tree is 

 6" outside bark. 



Total sawed out. 



By-products. 



High grade lumber. 

 Intermediate grade. 

 Low grade. 



Bark. 



Slabs, breakage and 



defects. 

 Sawdust. 



