Rfesiiious Woods 



One/, "of ttfie- Jijic>sfc :resQnabie points of attack is 

 in the direction ' of " waste Vesinous woods. Several 

 processes for the treatment of these woods are 

 now in successful operation and others give promise 

 of satisfactory development. The representative 

 species are the Douglas fir, the Norway pine and 

 the western yellow pine of the Pacific slope, and 

 the long-leaf pine an,d the associated Cuban pine 

 of the southeastern states. The species of less 

 importance are the digger, lodgepole, sugar and 

 pinon pines of the West, and the short-leaf and 

 loblolly pines of the South. 



The most abundant of the resinous woods and 

 the most promising from the industrial standpoint 

 is the long-leaf southern pine, Pinus palustris. 

 As is well known, this pine is the chief wood of the 

 southeast and holds first place among the com- 

 mercial woods of the country. The utilization of 

 * the waste wood is now assuming special significance 

 as an increasingly important factor in the naval 

 stores industry. The virgin forests which have 

 supplied the world with turpentine and rosin are 

 disappearing at an alarming rate and the principles 

 of conservation demand that the tapping and 

 wasting of the living trees should be relieved as 

 far as possible by the recovery of resinous products 

 from the felled waste wood. Moreover, long con- 

 tinued forest operations have resulted in the 

 accumulation of resinous waste in the forest and 

 much of this waste has remained sound by reason 

 of the preservative properties of the oleoresin. 



The forests of long-leaf pine occupy a strip some 

 125 miles wide along the coast of the Atlantic 

 and the Gulf of Mexico and constitute the main 

 timber growth of the states from North Carolina 

 to Texas. By reason of devastation of the forests, 

 the turpentine centre has moved in late years 

 from North Carolina to Florida, while the lumber- 

 ing centre has advanced to Louisiana and Missis- 

 sippi. It is estimated that the forest areas cover 

 over 70 million acres and that the stand of long- 

 leaf pine amounts to about 232 billion board feet. 

 (U. S. Dept. Agric., Forest Service, Bull. 99, p. 8). 



