202 



THE ROTATION. 



FINANCIAL YIELD TABLE FOR 

 Value of S t 



(According to Weise's Volume Yield Table for the III. Quality, calculated 



(See Table 



This table shows that the financial rotation falls between the 

 years 75 and 85. In order to ascertain the exact year, the 

 rentals given in column k of the table have been plotted (see 

 figure 44). It will be seen that the financial rotation falls 

 into the year 82, when the rental reaches its maximum. 



In column I the current annual forest per cent, is given, 

 calculated according to the formula on page 199. These 

 data show that the forest- or indicating per cent, passes 

 from above 2J per cent, to below 2J per cent, between the 

 years 75 and 85. By plotting the per cents, (see figure 45), 

 it is found that the exact time falls into the year 82, that is to 

 say, the same year when the annual soil rental culminates. 

 Hence the wood was financially ripe in the year 82. 



