SPECIES OF WOODS. 



103 



Physical Qualities: Light in weight 

 (48th in this list) ; 29 Ibs. per cu. ft., 

 sp. gr. 0.4543; medium strong (48th in 

 this list) ; elastic (28th in this list) ; 

 soft (52d in this list) ; shrinkage, 3 

 per cent. ; warps but little, likely to 

 check; very durable; easy to work, in 

 splitting,, crumbles or breaks; nails well. 



Common Uses: Shingles, posts, in- 

 terior finish, cooperage, railroad ties, 

 boats, and various construction work, 

 especially conservatories. 



Remarks : Forms forests in swamps ; 

 subject to a fungous disease, making 

 wood "peggy" or "pecky"; use largely 

 determined by its durability. In New 

 Orleans 90,000 fresh water cisterns are 

 said to be made of it. 



Radial Section, 

 life size. 



Cross-section, 

 magnified 37 H diameters. 



Tangential Section, 

 life size. 



