THE STATISTICAL REPORT. 



271 



COMPAUTMENTS. 



This figure represents the normal yield ; the real, or actual 

 yield depends on the quality of the growing stock and the ages 

 of the several woods. Assuming that the mean quality of all 

 woods were equal to '1, the actual yield would, for the present, 

 be equal to 



18,101 X -7 = 12,671 cubic feet, 



or 58 cubic feet per acre and year, w^hile measure would have 

 to be taken, to increase the yield capacity in the future, by 

 growing more completely stocked woods. 



5. Table of Age Classes. 



This table is of great importance, as it gives a correct idea 

 of the proportion of the different age classes, which affects the 



