SPECIES OF WOODS. 



71 



Physical Qualities: Weight, medium 

 (32nd in this list), 32 Ibs. per cu. ft., 

 sp. gr., 0.6104; very strong (18th in 

 this list) ; very elastic (8th in this list) ; 

 soft (38th in this list) ; shrinkage, 4 

 percent; warps little; durable; trouble- 

 some to work; likely to split along an- 

 nual rings in nailing. 



Common Uses: Heavy construction, 

 railroad ties, house trim, ship building, 

 cars, docks, bridges. 



Remarks: Wood hardly distinguish- 

 able from long-leaf pine. Often forms 

 pure forests. The most desirable yellow 

 pine, much less resinous and more easily 

 worked than others. 



Radial Section, 

 life size. 



Cross-section, 

 magnified 37^2 diameters. 



Tangential Section, 

 life size. 



