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Bark. —Some specimens of bark from Quiedong, Bombala, N.S.W., yielded 
the author 2D22 per cent, of tannic acid, and 39 - 86 per cent, of extract. They were 
from trees 12 to 18 inches in diameter and 20 to 30 feet high, and were grown on 
limestone country ( Proc. 11.S., N.S.JB., 1887, p. 92). A second sample from the 
same district gave 171 per cent, of tannic acid, and 393 per cent, of extract. They 
were apparently from an old tree. The barks form a rather fibrous powder. 
I have examined a sample from the Delegate Diver, N.S.W., where the trees 
are growing in the brush (rich jungle), in chocolate soil, attaining a height of GO to 
100 feet, with a diameter of 1 to 2 feet. Bark collected in April, 1889, yielded the 
following April 23'9 per cent, of tannic acid, and 45'7 per cent, of extract. This has 
the general appearance of A. decurrens bark, but is in layers, separable with a little 
difficulty, more fibrous, and has the appearance of having been dusted on the outside 
with a white powder. The whitish appearance does not rub off, and the stem looks 
as if it had had a coat of lime-wash. It is the work of a lichen. 
A perfectly smooth, thin, silvery or ash-grey bark, from near Penrith, N.S.W.. 
gave 24T3 per cent, of tannic acid, and 47'85 per cent, of extract. 
Barks received from Mr. C. Brownrigg, gathered in June, and obtained from 
parish of Beaufort, Cowra District, diameter of tree 10 inches, yielded 16'5 per cent, 
of tannic acid, and 42 4 per cent, of extract. A second sample from the parish of 
Calout, in the same district, from a tree 7 inches in diameter, gave 203 per cent, of 
tannic acid, with 43 per cent, of extract. Mr. Brownrigg kindly furnished the 
following notes with these samples :— Beaufort sample — C£ Extensive forests of good, 
sound, old and young trees, not affected by the ringbarking of other timber.” 
Calout sample —“ Since the ringbarking of the box and other timber, nearly all the 
old wattle trees have died away ; a young forest appears to be growing up.” 
Bark from county Auckland (Monaro), and stripped in November, gave 
24 per cent, of tannic acid, and 42’55 per cent, of extract. 
Two samples from the Cooma District gave 24 per cent, of tannic acid, with 
49’6 per cent, of extract, and 25*5 per cent, of tannic acid, with 51*2 per cent, of 
extract, respectively. The latter bark is worthy of special mention. It is quite 
black, having not a trace of the whitish appearance generally found on the bark of 
this species. It was brought to me as Green Wattle ( Acacia decurrens, var. mollis ), 
and there seemed no necessity to doubt the diagnosis. No expert could have told 
the difference between it and Green Wattle if he had not been permitted to test it. 
It is a good instance of the deceptiveness of appearances. 
“ Silver Wattle ” bark may be assumed to contain about 25 per cent, of 
tannic acid in the best samples. 
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