Naturalisation in Extra-Tropical Countries. 207 



employed for rails, will last a life-time. The curly butts, when sawn, 

 present a very handsome figure for furniture. The sap-wood early 

 perishable [A. R. Crawford]. According to the Rev. Dr. Woolls 

 the wood is of excellent quality, and largely used for building pur- 

 poses. The tree is generally found on rich soil along river-banks. 



Eucalyptus salmonophloia, F. v. Mueller. 



The Salmon-barked Ghimtree of South- Western Australia, attain- 

 ing a height of 120 feet. The timber is good for fencing, while the 

 foliage is available for profitable oil-distillation. The shining mixedly 

 whitish and purplish bark does not give off a white colouration like 

 that of E. redunca [Hon. Sir John Forrest]. All Eucalypts are 

 purifiers of air, but particularly those with foliage rich in essential 

 oil. 



Eucalyptus salubris, F. v. Mueller. 



The G-imletwood or Fluted Gumtree of Western and Central 

 Australia, living on poor dry soil and in the hottest desert-clime. It 

 is generally a slender-stemmed tree, sometimes to 100 feet high and 

 to 2 feet in stem-diameter, with scanty foliage. The bark is shining 

 with a brownish tinge, and has broad longitudinal and often twisted 

 impressions, or roundish blunt longitudinal ridges. The wood, Sir 

 John Forrest observes, is hard and tough, but worked with compara- 

 tive ease ; heaver than water, even when dry. It serves locally for 

 roof-supports, fence-posts and rails, poles and shafts. For xylography 

 it seems better than Pear-tree wood, and deserves attention for this 

 purpose. The tree exudes kino. 



Eucalyptus siderophloia, Bentham.* 



The Large-leaved or White or Grey Ironbark-tree of New South 

 Wales and South Queensland, attaining a height of 150 feet. 

 According to the Rev. Dr. Woolls this furnishes one of the strongest 

 and most durable timbers of New South Wales ; with great advan- 

 tage used for railway sleepers, jetty-piles, and for many building 

 purposes. It -is likewise highly appreciated by wheelwrights, 

 especially for spokes, also well adapted for tool-handles and various 

 implements. Found by us to be even stronger than hickory, and 

 only rivalled by E. Leucoxylon. It is still harder than the wood of 

 E. Leucoxyion, but for this reason worked with more difficulty. 

 Well seasoned it is slightly heavier than water. The Melbourne 

 price of the timber is about 2s. 6d. per cubic foot in the log. The 

 tree yields much kino. Mr. Newbery obtained from the bark 8 to 

 20 per cent, tannin. This species is often confounded with E. 

 resinifera in culture. 



