120 



LOBLOLLY OR NORTH CAROLINA PIXE. 



The average price of i!^ortli Carolina pine lumber f. o. b. I^orfolk, 

 Va., for first quarter 1913 was about $18 per 1,000 board feet. In 

 June, 1914, this average price had declined to about $16.50 per 1,000 

 board feet as shown by the following record of weekly sales, issued June 

 19,1914: 



Bark strips Nos. 1 and 2 $18.07 



Box bark strips 10.10 



This decline, which is probably only temporary, should be considered 

 in connection with all tables of average lumber prices or stumpage 

 values based thereon. 



Table 58 shows the increase in value of boards of the same grade with 

 the increase in the diameter of the log from which they were cut. This 

 is due to a wide board having a higher price than a narrow board of 

 the same grade. These data were computed for upper as well as for 

 lower logs, and as the greatest diiference in the value of any one grade 

 was found to be less than two per cent, the two sets of figures were 

 combined. By multiplying the amounts of different grades obtained 

 from logs and trees of different diameters (Tables 55, 56 and 57) by 

 the respective values of these grades (Table 58) the values of trees of 

 different diameters were obtained (Tables 59 to 64). It is possible to 

 obtain from this the value per 1,000 board feet of logs of different 

 diameters of each grade. Table 56 was obtained from data in Table 55, 

 which is derived from the mill cut. 



The stands of the future, which will be managed for the production 

 of sawtimber, will as a rule be cut between the ages of 40 and 70 years. 

 On some of the best sites where thinnings are possible cutting may be 

 as early as 25 years. It is consequently necessary to give full informa- 

 tion in regard to composition, volume and value of such stands only. 

 This is contained in Tables 55, 56, 57 which have already been given and 

 in Tables 59 to 64. 



Tables 59 to 61 give the comparative volumes on different quality 

 sit-es of trees of different diameters in 40 to 50-year old stands, band- 



*See page 100. 



