THINNING MIXED PLANTATIONS. 179 



Brought forward, . . . £17 1 8 



Fourth thinning, at twenty-five years old, 



400 trees per acre, .... 08 13 6 8 



Fifth thinning, at thirty years old, 250 



trees per acre, 16 18 15 



Sixth thinning, at thirty-five years old, 180 



trees per acre, 3 27 



Seventh thinning, at forty years old, 80 



trees per acre, 10 40 



Eighth thinning, at forty-five years old, 40 



trees per acre, 24 48 



Value of standing crop when fifty years 



old, 90 trees per acre, .... 30 135 



Deduct from this expenses of management and general 

 maintenance for one acre in fifty years. 



Also deduct the expenses of the firSt planting, at per 

 acre, 



" On an average the rent of the lands on which 

 these plantations are growing, if they were under 

 pasture, would be about 15s. per acre, judging from 

 similar land in the same districts where plantations 

 are. This wiU give a sum of £37, 10 s. for the fifty 

 years. I have shown that the same kind of land, 

 under a crop of mixed hardwood trees, will give a 

 sum of £233, 18s. 4d. in fifty years, or a net annual 

 income of rather more than £4, 10 s. per acre. And 

 it must be borne in mind that these plantations to 

 which I refer never had been regularly under any 

 defined system of management. If they had been 

 under a regular systematic course of forestry, they 

 would have given a much higher income annually. 



" Five years ago I received the management of about 

 400 acres of plantations on the estate of Wass 

 in the north of England. At that time I found 



