FOR WHOLE TREES. 



139 



TABLE 12. Form factors for merchantable portion of mature western yellow pine 

 trees, of different merchantable lengths and diameters breasthigh. 



This table compiled by substituting values given in Table 10 in the following formula: 

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

 .7854 -=- 144 (D.B.H.) 2 x merch. Igth. 



Form factors 



