WATTLES AND WATTLE -BARKS. 49 



colour, with whitish patches, giving the whole a silvery appearance ; has 

 irregular vertical fissures, and this circumstance, with the small horizontal 

 cracks, causes the outer bark to be readily detached in small flakes. The 

 inner bark or bast is very strong, and would form an excellent coarse tying 

 material for local use. I have not been able to get a more favourable speci- 

 men for tanning purposes. 



All the colonies, except Western Australia and Queensland ; chiefly a 

 highland and mountain species, but also on the coast. 



29. Acacia implexa, Benth., B. PL, ii, 389. 



I have analysed a sample of this bark (Proc. R.S., N.S.W., 1888, p. 270). 

 It gave 7*82 per cent, of tanuic acid, and 20-54 per cent of extract. It is 

 slightly bitter to the taste, owing to the presence of a saponin, but this 

 sample is from an old cultivated tree, and the bitterness is less noticeable ; 

 hoary-looking, in layers and flakes ; average thickness, i inch. 



Bark of this species from Deception Bay, has been sent to me by Dr. T. L. 

 Bancroft, of Brisbane, and found to contain 14/16 per cent, of tannic acid, 

 and 33'51 per cent, of extract. It was from a tree 15 feet in height and 4 

 inches in diameter. It was stripped in May, and analysed in July. 



Victoria, New South Wales, and Queensland ; chiefly a coast species, and 

 on eastern mountain slopes. 



30. Acacia harpophylia, P. v. M., B.EL, ii, 389. 



The common "BRIGALOW ;" so called because it forms the scrubs of that name ; the 

 meaning of the word is unknown. 



This tree yields a considerable amount of tan-bark of inferior quality. A 

 Queensland correspondent informs me that a sample analysed in London 

 gave 11/59 per cent, of tannic acid. 



For a popular account of this too plentiful Queensland wattle, see a 

 paper by the late Eev. J. E. Tenison- Woods, in Proc. Linn. Soc., N.S.W., 

 vii, 570. 



Central Queensland. 



31. Acacia excelsa, Bentli., B.PL, 390. 



"IRON WOOD," sometimes (though erroneously) called "BRIGALOW." Called 

 " Bunkerman" by the aboriginals of thn Cioncurry River, 2?6rbh Queensland. 



A Queensland correspondent informs me thab a sample of this bark, 

 analysed in London, yielded 16 09 per cent, of tannic acid. It is confined 

 to the northern colony. 



