TANS. 305 
is destroyed. The plant can be easily moved from place to place. 
It does not pay to cart the trash far, but a few square miles of 
wattle country will keep a factory going. The utilisation of thinnings 
allows the cultivation of the tree thickly on waste ground, and to 
begin cutting the third year. European tanners are quite accus- 
tomed to the use of such extracts, but.it is said that it will be very 
hard to introduce it into the colonial tanneries.” (Chemist and 
Druggist, 1886.) 
1. Acacia aneura, #.v.J7,, N.O., Leguminosz, B.FI., ii., 402. 
“ Mulga.” (For other vernacular names, see ‘‘ Timbers.”) 
A specimen of the bark of this tree from Ivanhoe, N.S.W., 
yielded the author ro per cent. of extract, and 4.78 per cent. of 
catechu-tannic acid. A narrow-leaved variety from the same 
neighbourhood yielded 20.72 per cent. of extract, and 8.62 per 
cent. of catechu-tannic acid * (Proc. R.S., N.S. W., 1887, p. 32.) 
All the colonies except Tasmania. 
2. Acacia aulacocarpa, 4. Cuxz., N.O., Leguminosz, B.FI., ii., 
410. 
“Hickory Wattle.” 
This tree yields a tan-bark, used in Queensland to some 
extent. 
Central and Northern Queensland. 
3. Acacia binervata, DC., (Syn. A. umbrosa, A. Cunn.); N.O., 
Leguminosz, B.FI., ii., 390. 
“ Black Wattle,” or ‘“‘ Hickory.” ‘‘ Myimbarr” of the aboriginals of 
Illawarra (New South Wales). 
The bark is used by tanners, though it is not so rich as that 
of A. decurrens. (W. Dovegrove.) Nevertheless, it is a very 
valuable bark ; specimens from Cambewarra, N.S.W., yielded the 
author 58.03 per cent. of extract, and 30.4 per cent. of catechu- 
tannic acid. (Proc. R.S., V.S.W., 1887, p. 90.) 
New South Wales and Queensland. 
* Important Memorandum. The percentages of tannic acid determined by the author, 
and recorded in Proc. R.S., N.S.W., are all calculated upon the bark dried at 100°C 
Xx 
