42 THE AFFOKESTATION OF SURPLUS LAND. 



The following returns may safely be counted on : 



Returns of one Acre oj Larch Wood. 

 Thinning at the age of 



20 years = 20 cubic feet quarter 

 girth measure- 



Returns of one Acre of Ash Wood. 



Thinning at the age of Shillings. 



30 years = 60 cubic feet at IQd. = 50 



Ditto, 40 = 150 Is. Od. = 150 



Ditto, 50 = 220 Is. M. = 257 



Ditto,* 60 = 270 ., Is. M. = 360 



Final yield, 70 = 2,100 Is. Gd. = 3,150 



Returns of one Acre of Scotch Pine Wood. 

 Thinning at the age of shillings. 



30 years = 40 cubic feet at 3d. = 10 



4d. = 50 

 5d. = 137 

 6d. = 190 

 Id. = 233 

 3d. = 2,866 



Returns of one Acre of Spruce Wood. 



Thinning at the age of Shillings. 



40 years = 40 cubic feet at 3d. 10 



Ditto, 50 = 160 4d. = 53 



Ditto, 60 ,, = 300 5d. = 125 



Ditto, 70 = 400 Qd. = 200 



Ditto, 80 = 400 Id. = 233 



Final yield, 90 ,, = 6,300 3d. = 4,200 



