76 



A MILL SCALE STUDY OF WESTERN YELLOW PINE. 



18 



22 



26 



3O 



34 



38 



42 



DIAMETER BREASTHIGH INCHES 



46 



FIG 81 Curve showing the relation between diameter inside bark of stump and 

 diameter breasthigh of immature trees. X/Y = reducing factor = 1.118. This factor 

 is used to reduce growth measurements made on the stump to read at diameter breast- 

 high. 



