Methods of Forest Organization. 67 



1740, fixing upon different numbers of felling areas, but 

 finally, ia 1770, decidiag on a rotation of seventy years. 

 Lack of personnel prevented much progress of thi& 

 regulation until in 1778 v. Kropf undertook the direc- 

 tion of the forest survey and regulation, when a more 

 regular progress may be noted. Not agreeing with his 

 master regarding the short rotation of seventy years, he 

 arranged to have each district divided into two working 

 blocks, and by cutting alternately ia these, managed ta 

 double that rotation. His successor, Hennert, in 1788 

 devised a new method by introducing allotment of a 

 number of annual felling areas to a period of the rota- 

 tion when at least the periodic budget could be equalized. 

 A value or money yield equalization of the felling 

 budgets was also attempted. 



For easier handling the forest was divided into small 

 compartments or Jagen and a classification of four, still 

 uneven, periodic age classes (of different length for 

 conifers and broadleaved forest), and three site qualities 

 were employed. The merchantable stock was ascertained 

 by a sample area method and the felling budget by divid- 

 ing the oldest age class by the number of years it must 

 last until the next was ready. Since no attempt was 

 made to secure a proper age class gradation, the method 

 failed to improve conditions for the next rotation. 



Some 500,000 acres were regulated according to this 

 plan, probably very superficially. 



In 1789 Bavaria also ordered a division into annual 

 felling areas. 



In all these methods of regulating the yield or budget 

 the area played the main role, the volume being only a 

 secondary consideration. 



