CHANriE OF SYSTEM. 



307 



whole area allotted to three periods of 40 years each, the 

 ^Yorking during the lirst rotation would be as follows: — 



During Period I. — Part A, approximatel}' equal to one-third 

 of the total area, will be regenerated, either naturally or 

 artificially, or by a combined method. From part B any 

 over mature trees are removed by selection, the necessary 

 thinnings made and blanks, if any, stocked. In part C over 

 mature trees are removed, blanks stocked, incomplete young 

 woods filled up and others thinned. 



Diiriufi Period II. — Part B will be regenerated. In part A 

 any remaining shelter trees will be removed and probably 

 thinnings commenced. In part C over mature trees will be 

 cut and thinnings made wherever necessarj'. 



During Period III. — Part C will be regenerated. In 

 part B any remaining shelter trees will be cut and thinnings 

 commenced. In part A the necessary thinnings will be made. 



The following table will farther illustrate the procedure : — 



l. Co7iversion of Coj^pice iciih Slandards into thr Compaiimont 

 System. 



This conversion is easiest effected by gradually growing so 

 much overwood in each coupe, that it represents a high, 



x2 



