36 WORKING PLAN FOR FOREST LANDS NEAR PINE BLUFF, ARK. 



merchantable timber increases but slightly. In proportion to the 

 total height the greatest merchantable length is obtained from trees 

 about 20 inches in diameter, and. as with the Shortleaf. this amounts 

 to only one-half the total height of the tree. The merchantable length 

 is less than the clear length in trees below 20 inches in diameter, but 

 in large trees the reverse is true. 



14 16 18 20 22 24 26 28 30 32 34 36 38 40 



DIAMETER BREAST HIGH-INCHES 



Fig. 9.— Diagram showing the relation between the total height, merchantable length, crown length, 

 and clear length for Loblolly Pine on the basis of diameter breasthigh. 



Practical Value of the Loblolly Pine as compared with the Shortleaf Pixe. 



In case conservative lumbering is undertaken upon the tract of the 

 Sawyer & Austin Lumber Company, it will be possible to increase the 

 percentage of the most valuable species in the forest of the future. 

 As already said, there is no doubt whatever that an increase in the 

 stand of pine and a decrease in that of hardwoods would very mate- 

 rially increase the value of the forest. More than this, there are notable 

 differences between the two species of pine, and such differences should 

 also be taken into consideration, and the species which gives promise 



