BLACK POPLAR 



[Continued. 



* This Hum rfprfsents the average nett income per acre which will be earned upon the average 

 rtccnmulattd capital when once the forest is in proper working rotation, i.e., when it is normally stocked 

 with crops of all ages from one year old up to maturity. The cost of replanting is estimated at 5 per acre, 

 and it in assumed that the land is allowed to lie fallow for one year. 



Diagrams 



showing 



proportion of 



Thinnings to 



Final Crop. 



On a 

 SO-year 



rotation. 



IN VOLUME. 

 (To 3 inches diameter. ) 



IN VALUE. 



On a 

 6O-ycar 



rotation. 



The most profitable rotation 



(according to the yields and prices indicated) 



Is one of SO to 55 years, if interest is reckoned at 3J per cent. 



SO 



at 4 per cent. 



Prices of Timber (standing). 



The timber has been valued according to the following scale of 

 prices : 



Per cub. ft. 



Trees containing less than 5 cub. ft. . 



5 cub. ft. and less than 10 cub. ft. 



10 

 20 

 35 

 50 



and over 



20 

 35 

 50 



o "\ Including 

 ["tops "to 8 

 4 ) diameter. 



g 

 to 8 in. 



" Tops " below 



6 in. q.g. at 

 8d. per cub. ft. 



