Naturalisation in Extra-Trupical Countries. 181 



eucalyptus obliqua, L'Heritier.* 



The ordinary Stringybark-tree of Tasmania, generally designated 

 Messmate-tree in Victoria, attaining a height of 300 feet, with a 

 stem more than 10 feet in diameter, growing mostly in mountain- 

 ous country and content with poor dry soil. The most gregarious 

 of all Eucalypts from Spencer's Gulf to the southern parts of New 

 South Wales, and in several varieties designated by splitters and 

 other wood- workers by different names. Most extensively used for 

 cheap fencing rails, palings, shingles and any other rough wood- 

 work, not when great strength or elasticity is required. The 

 bulk of wood obtained from this tree in very poor soil is perhaps 

 larger than that of any other kind, and thus this species can be 

 included even in its native country, where it is naturally common 

 and easily re-disseminated, among the trees for new forest-planta- 

 tions in barren woodless tracts, with a view of obtaining a ready 

 and early supply of cheap and easily fissile wood. Main-root more 

 straightly descending than that of most other species. Weight of 

 completely dry wood from 50|- to 61^ Ibs. per cubic foot, equal 

 to specific gravity 0'808 to 0*984. The young trees are sometimes 

 used for telegraph-poles. The fresh bark contains from 11 to 13f 

 per cent, kino-tannic acid ; the dry leaves, according to Mr. Maiden, 

 produce about 17 per cent. 



Eucalyptus ochrophloia, F. v. Mueller. 



Arid interior of sub-.tropic Eastern Australia, on ground subject 

 to occasional floods. A tree seldom over 30 feet high. Wood 

 tough, serviceable for slabs, rails and rafters, but not lasting 

 underground. A tree recommendable for hot and dry regions. 



Eucalyptus odorata, Behr. 



The Peppermint-tree of South-Australia. Reaching 70 feet in 

 height, the stem 2f feet in diameter. Timber hard, very durable, 

 used for sleepers, posts and piles [J. E. Brown], The tree follows 

 the limes tone -formation, but occurs also in clayey loam ; 1,000 Ibs. 

 of foliage gave 112 oz. of oil [Mtschke]. 



Eucalyptus oleosa, F. v. Mueller. 



One of the smaller. Eucalypts, known as Mallee, extending from 

 East- to West-Australia through the desert-regions. The 

 essential oil, in which the foliage of this species is comparatively 

 rich, dissolves india-rubber without heat, according to Mr. Bosisto ; 

 it is also one of the best solvents for amber and other fossil resins. 

 It is largely produced at the Wimmera by Mr. Bosisto ; it is 

 unusually rich in Eucalyptol and thus leadingly indicated for 

 antiseptic purposes ; it contains also a principle allied to Cumin - 

 Aldehyd ; it does not cause, through irritating particles, any cough 

 to patients inhaling it [Schimmel]. The variety longirostris 

 attains a height of 120 feet, with a stem of 70 feet without a 



