126 THE PRINCIPAL SPECIES OF WOOD. 



Karri. Eucalyptus diversicolor. 



Nomenclature. 



Karri (many localities). White Gum (Australia). 



Locality. 



Australia, New Zealand. 



Features of Tree. 



Two to three hundred and fifty feet in height, four to eighteen 

 feet in diameter. A straight graceful tree, lower branches 

 often one hundred and fifty feet from ground. Smooth yellow 

 white bark. 



Color, Appearance, or Grain of Wood. 



Reddish brown, fibres interlaced, compact structure. 



Structural Qualities of Wood. 



Hard, heavy, tough and elastic, non-absorbent, durable, diffi- 

 cult to work, wears evenly, characteristic odor. 



Representative Uses of Wood. 



Construction, railway ties, piles, marine work, pavements 

 (London and Paris). 



Weight of Seasoned Wood in Pounds per Cubic Foot. 

 63 (Ednie-Brown).* 



Modulus of Elasticity. 



2,890,000 (Ednie-Brown).* 



Modulus of Rupture. 

 8000 (Ednie-Brown).* 



Remarks. 



Once named Eucalyptus colossea because of great size. Rich 

 in essential oils. Grows rapidly, one specimen thirty-five 

 years old, having reached a height of one hundred and thirty- 

 five feet. Distinct from Kauri Pine (D. australis) of New Zea- 

 land. Diversicolor refers to leaves the upper and lower sides 

 of which differ in color. 



* Report Forests Western Australia, Presented to Parliament, 1896. 



