50 WATTLES AND WATILE-BAEES. 



32. Acacia complanata, A. Cumi., B.EL, ii, 390. 



Dr. T. L. Bancroft lias teen kind enough to send me some bark of tins- 

 species from Enoggera, near Brisbane. It yielded 10'2S per cent, of tannic 

 acid, and 31*1 per cent, of extract. It was from a tree 20 ft. in height and 

 6 in. in diameter. Stripped in May, and analysed in July. It is exceedingly 

 thin (under % in. when dry), smooth externally, Tery fibrous, and apparently 

 of no promise as a tan-bark. 



This species is confined to Xew South Wales and Queensland. 

 33. Acacia binervala, DO., B.EL, ii, 390. 



Illawarra " BLACK WATTLE" or HICKOKY." "Mjimbarr" of the aboriginals of 

 Illawarra (New South Wales). 



This is a valuable bark ; specimens from Cambewarra, N.S.W., yielded me 

 up to 58'03 per cent, of extract, and 30.4 per cent, of tannic acid. The 

 colour of this sample w r as dark-brown ; the inner bark warm red-brown ; 

 the outer bark deeply-fissured or flaky, which makes it more or less pul- 

 verulent ; the inner bark contains abundance of strong fibre; diameter, 

 12 inches; height, 20 to 25 feet ; locally called "Black Wattle." (Proc.E.S., 

 N.S.W., 1887, p. 90.) 



A second sample from the same locality gave 28'2 per cent of tannic acid, 

 and yielded 51'5 percent, of extract. 



I have examined a specimen from Tomerong, near Jervis Bay, N.S.W. 

 (between Nowra and Milton), which was collected February, 1888, and 

 and analysed the following September. (Proc. R.S., N.S.W., 1888, p. 273.) 

 As received, it had had its first crushing in the mill, nevertheless it was possible 

 to pick samples showing a fair proportion of inner and outer bark. The outer 

 bark is somewhat scaly, and the inner bark is light reddish-brown and very 

 fibrous. It cannot be mistaken for A. decurrens bark owing to its fibrous 

 nature. It gave tannic acid, 19'3 per cent. ; extract, 37'S per cent. 



This sample was taken from bulk actually used by a tanner, and it will be 

 found, in general, that barks containing 20 per cent, of tannic acid are 

 commonly used by country tanners ; in fact, if bark of a species gives as 

 high as 15 per cent of tannic acid, it is worthy of inquiry whether richer 

 specimens are available. 



The above are southern localities, following are from northern : 



Bark from Booral, county of Gloucester, stripped in July, and analysed 

 in August, gave 28 per cent, of tannic acid, and 51*55 per cent, of extract. 

 It was from a tree 30 feet high, and 8 inches in diameter. 



