Naturalisation in Extra-Tropical Countries. 



185 



as stated below, and as ascertained by Mr. Bosisto, at the author's 

 instance, for the Exhibition of 1862: 



E. amygdalina 

 E. oleosa 

 E. leucoxylon 

 E. goniocalyx 

 E. globulus 

 E. obliqua 



3-313 per cent, volatile oil. 



1-250 



1-060 



0-914 



0-719 



0-500 



The lesser quantity of oil of E. globulus is however compensated for 

 by the vigor of its growth and the early copiousness of its foliage. 

 The proportion of oil varies also somewhat according to locality and 

 season. E. rostrata, though one of the poorest in oil, is nevertheless 

 important for malaria-regions, as it will grow well on periodically 

 inundated places and even in stagnant waters not saline. According 

 to Mr. Osborne's experiments, initiated by myself, Eucalyptus-oils 

 dissolve the following, among other substances, for select varnishes 

 and other preparations : camphor, pine-resins, mastic, elemi, sandarac, 

 kauri, dammar, asphalt, xanthorrhoea-resin, dragon's blood, benzoe, 

 copal, amber, anime, shellac, caoutchouc, also wax, but not gutta- 

 percha. These substances are arranged here in the order of their 

 f neatest solubility. The potash obtainable from the ashes of various 

 ucalypts varies from 5 to 27 per cent. One ton of the fresh foliage 

 of E. globulus yields about 8J Ibs. of pearl-ash ; a ton of the green 

 wood, about 2^ Ibs.; of dry wood, about 4J Ibs. The kino of E. 

 amygdalina is almost completely soluble, as well in alcohol as in 

 boiling water, and contains at an average about 58 per cent, of tannin 

 [Maiden]. For chemical determinations of tan-principles in bark 

 and kino of various Eucalypts may also be referred to Prof. Wiesner's 

 published early observations on material supplied by the writer of 

 this work. For resins, tar, acetic acid, tannin and other products 

 and educts of many Eucalypts, see various documents and reports 

 of the writer, issued from the Melbourne Botanic Garden already, 

 1866. Professor Ch. Naudin has published quite recently a valuable 

 treatise on the Eucalypts, which have been introduced into France 

 and Algeria. 



Eucalyptus Baileyana, F. v. Mueller. 



South-Queensland and Northern part of New South Wales. A 

 tree to about 100 feet high ; bark remarkably tenacious [Bailey]. 

 The timber splits easily, yet is tough and durable, thus locally used 

 for fence-posts and similar purposes [A. Williams]. This species, 

 unlike most of its congeners, can be grown to advantage on sandy soil. 

 Branches more spreading and foliage more dense than of most other 

 Eucalypts. 



Eucalyptus botrypides, Smith.* 



From East-Gippsland to South-Queensland. Vernacular name 

 Bastard-Mahogany, and a variety called Bangalay, the latter 



