FOR WHOLE TREES. 



85 



10.00 



5.00 



18 



26 28 3O 32 34 36 



DIAMETER BREASTHIGH INCHES 



FIG. 93. Curves showing increase in value per decade in dollars and cents of 

 nature trees of different diameters breasthigh. These curves are constructed by 

 lotting the increment of value from "Bi," the total value curve, corresponding to the 

 ncrement of growth in diameter breasthigh shown in Fig. 84, for trees of different 



iameters. 



20 22 



24 



26 28 30 32 34 36 

 DIAMETER BREASTHIGH INCHES 



38 40 



FIG. 94. Curves showing per cent increase in value per decade of mature trees of 

 fferent diameters breasthigh. These curves are obtained by expressing the values 

 lown in Fig. 93 in per cent of total value of trees of different diameters, or 

 irve /B 



X 100 = per cent increase in value, in dollars and cents, per decade of growth. 



:urve Bi 



