THINNING. 8 3 



at 3s. per 72 lineal feet; and a still larger size, termed 

 sparwood, at 6s. per 72 feet lineal. Pine and fir tim- 

 ber size trees are calculated at 6d. per foot up to 

 9d. per foot cubic ; larch about one-fourth to one- 

 third higher — both per lineal and cubic foot. Beech is 

 calculated at 8s. to los. per ton, and birch, alder, &c., 

 at 6s. per ton. The above are the prices which the 

 proprietor should receive, without any expense upon it, 

 or as it stands in the wood. 



Column 1 1 contains the transferable value per acre, 

 which, in some cases, as Nos. 20 and 21, is the same 

 as the prospective value, arising from the circum- 

 stance that, after plantations arrive at full maturity, 

 there is a certain loss going on by some trees decaying 

 and others breakingj or beings blown down with the wind. 

 To the value of the growth of the wood of all planta- 

 tions below thirty ^years old, or those of which the 

 thinnings have not yet paid the original outlay of 

 forming the plantation, such cost per acre is added ; 

 but to plantations which have been thinned to that 

 extent no such addition is made. 



Column 1 2 contains the prospective value, which is 

 the highest that it is estimated the plantation is capable 

 of ever attaining, or at least that stage of growth at 

 which it pays the proprietor best to cut it down and 

 clear it. 



Before leaving the tables, it may be proper to ex- 

 plain still further how the various data in Table I. 

 are obtained, in order to know the exact number of 

 trees upon the ground. 



