138 



A MILL SCALE STUDY OF WESTERN YELLOW PINE. 



TABLE 11. Form factors for merchantable portion of immature western yellow pine 

 trees, of different merchantable lengths and diameters breasthigh. 



This table compiled by substituting values given in Table 9 in the following formula : 

 Vol. cu. ft. contained in merch. Igth. inside bark 



Form factor 



.7854 -f- 144 (D.B.H.) 2 x merch. Igth. in feet 



