fcH i PRELIMINARY REMARKS 109 



grow into larger timber trees, and may be kept standing 

 through several rotations of coppice. 



A forest under conversion is one the treatment of 

 which is being gradually changed from the system of 

 coppice to that of high forest. 



A wind-fall is a tree which has fallen or has been 

 felled by natural agency, as e.g. by wind. 



A tvind-belt is a belt of trees which is left growing 

 thickly together, or has been grown specially to protect 

 from the prevailing wind the crop growing behind it. 



