172 THE PRINCIPAL SPECIES OF WOOD. 



Tamarack, Larch. Larix occidentalis. 



Nomenclature. (Sudworth.) 



Tamarack, Larch (local and Western Larch, Great Western 



common names). Larch, Red American Larch. 



Hackmatack (Idaho, Wash.). Western Tamarack (Cal.). 



Locality. 



Washington and Oregon, intermittently to Montana. 



Features of Tree. 



Ninety to one hundred and twenty-five feet high, two and one- 

 half to four feet in diameter. A large tree. 



Color, Appearance, or Grain of Wood. 



Heartwood light red, thin sapwood lighter. Coarse-grained, 

 compact structure, annual rings pronounced. 



Structural Qualities of Wood. 

 Hard, heavy, strong, durable. 



Representative Uses of Wood. 



Posts, railway ties, fuel, limited quantity of lumber, similar to 

 L. americana. 



Weight of Seasoned Wood in Pounds per Cubic Foot. 



46. 

 Modulus of Elasticity. 



2,300,000. 

 Modulus of Rupture. 



17,400. 

 Remarks. 



A valuable tree of the Columbian basin. Differs from L. ameri- 

 cana in that it grows on dry ground, often at high elevations. 



The European Larch (Larix europaa) is a native of Central 



irope. The trees thrive upon ary soil and are used in American 



andscape work. They are good needlcleaf trees to plant near houses 



because they lose their leaves during the winter. The wood is 



similar to that obtained from American species. The European larch 



the Venice turpentine of commerce. This substance, once 



Collected through Venetian markets, is now largely drawn from 



