34 THE PRINCIPAL SPECIES OF WOOD. 



Oregon Ash. Fraxinus Oregona Nutt. 



Nomenclature. 



Oregon Ash (Calif., Wash., Oregon). 



Locality. 



Pacific coast, Washington to California. Best developed in 

 bottom lands, southwestern Oregon. 



Features of Tree. 



Fifty to occasionally seventy-five feet in height, one to one 

 and one-half feet in diameter. Dark grayish-brown, bark 

 exfoliates in thin scales. 



Color, Appearance, or Grain of Wood. 



Heartwood brown, sapwood lighter, coarse-grained, compact 

 structure, numerous thin medullary rays. 



Structural Qualities of Wood. 

 Rather light, hard, not strong. 



Representative Uses of Wood. 



Manufacture of furniture, carriage-frames, cooperage, and fuel. 



Weight of Seasoned Wood in Pounds per Cubic Foot. 



35- 

 Modulus of Elasticity. 



1,200,000. 

 Modulus of Rupture. 



9400. 



Remaiks. 



One of the valuable deciduous trees of the Pacific coast. 

 Thrives only on moist soils and in moist climates. 



