132 THE PRINCIPAL SPECIES OF WOOD. 



Karri. Eucalyplus diver sico lor. 



Nomenclature. 



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



Locality. 



Australia, New Zealand. Some specimens acclimated in California. 



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). Masts, lumber (Australia). 



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. Distinct 

 from Kauri Pine (D. australis). Diversicolor refers to leaves 

 the upper and lower sides of which differ in color. A charac- 

 teristic of other eucalypt also. 



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



The Giant Eucalypt or Peppermint Tree (Eucalyptus amygdalina) 

 is probably the tallest of all trees. The leaves smell like peppermint 

 because of oils that are often separated and used in medicine. The 

 light woods are outclassed by those of other species. 



The Sugar Gum (Eucalyptus corynocalyx) now grows thriftily in 

 California. It is one of the best species for desert culture. The 

 profuse blossoms continue for several months. The very hard, durable 

 woods season evenly, and have been used in wheels and utensils. Trees 

 are planted along roads; they attain heights of sixty to ninety feet. 



