168 Select Plants for Industrial Culture and 



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 

 greatest solubility. The potash obtainable from the ashes of various 

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

 of E. globulus yields about 8f Ibs. of pearl-ash ; a tori of the green 

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

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

 boiling water, and contains at an ayerage 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 botryoides. Smith. * 



From East-Gippsland to South-Queensland. Vernacular name 

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

 generally found on coast- sands. One of the most stately among 

 an extensive number of species, remarkable for its dark-green 

 shady foliage. It delights in river -banks, but will thrive also on 

 ground with stagnant moisture. Grows splendidly at the city of 

 Algiers [Prof. Bourlier]. Stems attain a height of 80 feet without 

 a branch and a diameter of 8 feet. The timber usually sound to 

 the centre, adapted for water- works, wagons, particularly for 

 felloes, also knees of boats. Posts formed of it are very lasting, as 



