114 Germany. 



division. This method was later on (1817), called 

 by him Flaechenfachwerk (area allotment). It divides 

 the rotation into periods and allots areas for each 

 periodic felling budget. But before this time, in 1804, 

 Cotta had himself formulated a method of his own, 

 which combined the area and volume method, the 

 volume being the main basis and the area being merely 

 used as a check. While Hartig dogmatically and per- 

 sistently carried out his difficult scheme, Cotta was 

 open-minded enough to improve his method of regu- 

 lation, and by 1820, in his Anweisung zur Forstein- 

 richtung una 1 Abschaetzung, he comes to his final posi- 

 tion of basing the sustained yield entirely on the area 

 allotment, using the estimate of volume simply to 

 secure an approximately uniform felling budget. He 

 laid particular stress on orderly procedure in the sub- 

 division and progress of the fellings. He did not 

 prepare an elaborate working plan binding for the 

 entire rotation, but merely prescribed the principles 

 of the general management, and, after 1816, he con- 

 fined the formulating of felling and planting plans 

 only to the next decade. 



A similar method, making a closer combination of 

 volume and area allotment, now known as the com- 

 bined allotment, in which the area forms the main 

 basis for distributing the felling budgets, was pre- 

 scribed by Klipstein in 1833. This, also, confines the 

 working plan to the first period of the rotation and 

 for this period alone makes a rather careful statement 

 of the expected volume budget; a new budget is then 

 to be determined at the beginning of the next period. 

 This idea of confining the budget determination to a 



