Naturalisation in Extra- Tropical Countries. 189 1 



lusting a shorter time. Mr. A. R. Crawford observes, that he has 

 never known posts of this wood decaying from dry rot, nor saw it 

 as round posts ever attacked by the termites. Quite underground 

 it remains sound much longer [Thozet]; but much depends, as 

 regards its durability, on the locality where it is obtained, and the 

 manner of drying, a remark which applies also to many other 

 Kucalvpts. Has prospered remarkably in the Punjab, attaining to 

 a height of 60 feet in seven years [Major P. C. Napier]. 



Bucalyptus terminalis, F. v. Mueller.* 



The Bloodwood-tree of the northern and central parts of Aus- 

 tralia, closely allied to E. corymbosa, attaining a considerable size y 

 thriving even in sandy desert-country. The wood is dark-red, 

 hard and extremely tough, particularly fit for boards, as it does 

 not crack. Locally used for piles, for foundation-blocks of build- 

 ings, as one of the best woods there [Th. Gulliver]. The tree 

 resists the enormous desert-heat of Central Australia, where the 

 shade temperature ranges from 27 to 122 F., and where the annual 

 rainfall in some years is only 2 inches, and seldom more than 10 

 inches. Particularly adapted for dry tropical climes. 



Bucalyptus tessellaris, F. v. Mueller*. 



Central and Northern Australia and Queensland. The Moreton- 

 bay-Ash. This tree reaches even on dry ridges a height of 150 

 feet, surpassing any other Central-Australian species in loftiness, 

 and there resists the severe summer-heat [Rev. H. Kempe] . Fur- 

 nishes a brown, rather elastic wood, not very hard, easily worked, 

 of great strength and durability, available for many kinds of 

 artisans' work, and particularly sought for staves and flooring. 

 The tree exudes much astringent kino [P. O'Shanesy]. Several 

 other species might yet be mentioned, particularly from tropical 

 Australia, but we are not yet well enough acquainted with their 

 technical value. All Eucalypts are eligible for the production of 

 tar, pitch, acetic acid, wood-spirit, paper-material, potash and 

 various dye-substances on a commercial scale. 



Eucalyptus triantfea, Link.* (E. acmenoides, Scliauer.) 



New South Wales and Eastern Queensland. Known as White 

 Mahogany. It attains a considerable height, with a stem reaching 

 4 feet in diameter, and is of rapid growth. The wood is used in 

 the same way as that of E. obliqua, but is superior to it. It is 

 heavy, strong, durable, of a light color, and has been found good 

 for palings, rails, flooring-boards, battens and many other purposes 

 of house-carpentry [Rev. Dr. Woolls]. 



Bucalyptus urnig-era, j. Hooker. 



Cooler region of Tasmania only. Seldom attaining a great height, 

 but in this work not to be passed, as it is one of the hardiest and 

 most antiseptic of all Eucalypts. Botanically to be regarded as a 



