49 
Another sample, taken from a tree between 40 and 50 feet high and 15 inches 
in diameter, at a place 12 miles from Burragorang Mountain, where this species was 
growing in very large quantities, was analysed July, IS90, and found to contain 
344 per cent, of tannic acid, and 69’33 per cent, of extract. This is a perfect 
specimen of bark of this species, being of good thickness, smooth, and of good colour. 
A sample from Cambewarra, from trees 20 to 30 feet in height, and G to 
8 inches in diameter, gathered in August, 1886, was found to contain 32'08 per cent, 
of tannic acid, and 5216 per cent, of extract. ( Proc. P.S., N.S. W., 1887, p. 33.) 
A bark grown in the same neighbourhood, and analysed in April, 1890, gave only 
24T3 per cent, of tannic acid, and 471 per cent, of extract. It is a smooth bark, 
but from a young tree, being only one-eiglitli of an inch thick, and rather fibrous. 
Had it been allowed to remain on the tree a couple of years longer, I feel sure 
that the percentage of tannic acid would have much increased. 
A sample from Nerriga (on the high table-land from Nowra to Braidwood) 
gave the excellent result of 36'3 per cent, of tannic acid, with 62'54 per cent, of 
extract. {Proc. R.S., N.S. W., 1888, p. 271.) Height of tree, 15 to 20 feet; 
diameter, 8 to 12 inches. It was stripped in January, and analysed the following 
August. This is the best sample of A. decurrens bark which has hitherto been 
examined by me. 
A second sample from the same district yielded 3175 per cent, of tannic acid, 
and 62'35 per cent, of extract; while a third gave 2925 percent, of tannic acid, and 
59 per cent, of extract. A fourth gave 24’99 per cent, of tannic acid, and 53'96 per 
cent, of extract. 
A bark from Bateman’s Bay, collected in February, and said to be known 
locally as “ Silver Wattle,”* yielded the very satisfactory result of 34 per cent, of 
tannic acid, and 59 45 per cent, of extract. It was obtained from trees 50 feet high 
and 9 inches in diameter. 
A second specimen from the same locality, collected at the same time, and 
labelled, probably more correctly, “ Green Wattle,” gave the even better result of 
36'25 per cent, of tannic acid, and 60'3 per cent, of extract. It is as good as any 
Victorian or Tasmanian. 
Mr. Thomas Shepherd, an enterprising tanner of Cambewarra, has kindly 
furnished me with the following information in sending the first sample from 
Nerriga. Of all New South Wales localities, he prefers Nerriga for A. decurrens 
bark. He says it would be quite equal to Tasmanian if it could be obtained as finely 
ground. From Cambewarra bark Mr. Shepherd obtains only two liquors, of which 
the second is very weak, while from the Nerriga bark he invariably obtains three 
strong liquors. In his opinion the best time for stripping is when the trees arc in 
bud, and have just come into flower. Next to the Nerriga bark he speaks highest 
of that coming from the Bega district. 
* It is sometimes difficult to tell this treo from the true Silver Wattle (var. ilealbata), but usually they are different 
enough. 
D 
