340 DETERMINATION OF THE YIELD. 



(1) The clearing of 200 acres ; and 



(2) The treatment of 1,000 acres as coppice with standards. 



During the second 10 years : 



(1) The clearing of 200 acres ; and 



(2) The treatment of 800 acres as coppice with standards. 



During the third 10 years : 



(1) The clearing of 200 acres ; 



(2) The treatment of 600 acres as coppice with standards ; 



(3) Thinnings in the oldest coniferous woods, c. 



It is evident, therefore, that the returns fall off from period 

 to period, in so far as the reduction is not made good by 

 thinnings in the young coniferous woods. This can to some 

 extent be modified by not making an^y cuttings in the 

 200 acres of coppice with standards which will come under 

 conversion during the next period of 10 years ; in other words, 

 to let the material get 10 years older than it otherwise would. 



The expected yield is determined by estimating the returns 

 from the 200 acres to be converted and adding thereto the 

 necessary cuttings on the rest of the area ; the latter should 

 oe sparingly done, so as to equalize the cuttings as much as 

 possible. 



