LOBLOLLY OR NORTH CAROLINA PINE. 



119 



INCREASE IN VALUE OF TREES. 



A tree increases in value by : (1) Increase in volume; (2) increase in 

 the width of the boards which are cut from the tree, since the wider the 

 board the greater its price even in the same grade; (3) increase in the 

 proportion of the higher priced grades, which are free from knots and 

 other defects; (4) increase in the price of stumpage; and (5) closer 

 utilization or lowering the specifications of grades of lumber. In a fully 

 stocked stand the effects of these factors progressively increase with the 

 age of the stand and the size of the trees except in the case of price 

 change in specifications and utilization, which increase irregularly. 



Increase in volume (page 66) and increase in the proportion of the 

 higher priced grades (page 101) have already been discussed. The 

 other factors which influence value will be considered below. 



INCREASE IN QUALITY OF SAW TIMBER. 



The prices which have been used for the different grades and widths 

 of lumber are figures based on actual sales ("Weekly Sales Keports, 1ST. 

 C. Pine Association), f. o. b. Norfolk, Virginia, during the first quarter 

 of 1913. They are shown in the following table: 



Bark strips Nos. 1 and 2. 

 Box bark strips 



.$19.00 per 1,000 board feet. 

 . 11 .00 per 1,000 board feet. 



See page 100. 



