Table H. — Summary of Growth of Trees, measured by the United Slates Forest Service. 



325 



When the number of trees is not indicated, it is the s.ame as the figure next above or below the blank. In the column showing average 

 growth the figures under A indicate the values where allowance is made for the dropping out of group after group of trees in the 

 earlier centiu-ies, while under B no allowance has been made. Where only one set of figures is given in the- column of average growth, 

 the values A and B are the same. In plotting the curves of figure 31 the values under B have in all cases been used. (See figure 31.) 



