76 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



hundred and seventy-five. In one plot they are grouped by the 

 countries of their origin; in the other, each species occupies an 

 area of fully half an acre. 



[Photo,/. H. W. 

 OAK COPPICE: CONVERSION TO HIGH FOREST — CHAMPENOUX. 



Management. 



In 1826, it was decided to convert into high forest the Forest 

 of Champenoux, which, up to that time, had been treated as 

 coppice-with-standards. But, during a long period, the opera- 

 tion was limited to preparatory cuttings, and the regeneration 

 fellings were not introduced until the nth of August 1868, the 

 date of the decree which sanctioned them. This decree divides 

 the forest into two working-sections, each formed by one of the 

 two existing blocks, and it prescribes a conversion of all the crops 

 into high forest during the course of one rotation of 160 years, 

 divided into four periods of 40 years each, to which correspond 

 four periodic blocks. In principle, each periodic block should 

 be regenerated during the corresponding period. 



During the first period, regeneration fellings should be made 

 by volume in the first periodic block in each working-section; 



