182 ON SOME N.S.W. TAX-SUBSTANCES. 



5. As a sample of the ignorance which prevails in Europe in 

 regard to some of our raw products, the following from a standard 

 work, is worth quoting : — "Dans les colonies anglaises, on trouve 

 -dans la Nouvelles-Galles du Sud, les ecorces de Y Urtica gigas ou 

 grande urticaire, du Brachychiton luridum ou sycomore, du 

 Melaleuca uncinata ou arbre a the. Dans la Tasmanie et a 

 Queensland, les ecorces d' Acacia melanoxylon. Dans 1' Australie 

 du Sud, les memes ecorces, et, en autre, celle de V Ecualyptus."- 

 Dictionnaire des arts et manufactures (Laboulaye) Art. " Tan." — 

 Of these barks, Urtica gigas and Brachychiton luridum are used 

 only for fibre, while the bark of Melaleuca uncinata is useless for 

 any purpose, the leaves only being used to a small extent, and then 

 for yielding oil. Acacia melanoxylon is not found in Queensland 

 ■at all. And why South Australia in particular should be credited 

 with the use of Eucalyptus bark I do not know. This is the sum 

 total of the information concerning our tan-substances in the 

 principal technological dictionary in the French language. And 

 references to the subject in books published in England are 

 frequently not much better. It seems strange that the matter 

 should have been so neglected. 



• 30. El.eocarpus grandis, F.v,M., N.O. Tiliacese, B. Fl. i., 281. 



Found in Northern New South Wales and Queensland. 



Vernacular Names — " Blue Fig," u Brisbane Quanclong," 

 (owing to the blue fruits being eaten by children and 

 aboriginals). By the latter it is frequently called 

 " Calhun " or " Cullangun." The tree from which this 

 bark was obtained was cultivated in Sydney. 



Part of the Tree Examined— Bark of the large limbs, removed 

 in pruning the tree. 



Particulars of the trees whence it was obtained — Height 20 

 feet, diameter 15 inches. 



Collected 20th July, 1887. Analysed 1 2th to 28th September 



1887. 



Bark smoothish, but with very small fissures. Of a greenish- 

 black appearance. Epidermis readily separable, possessing in its 

 under surface the light colour and general appearance common in 

 Tiliaceous plants. Abundance of chlorophyll underneath the 

 epidermis. Inner bark fibrous and light yellow. Average thickness 

 -of bark -fV inch. Colour of powder that of white pepper, but 

 rather more yellow. 



