139 
A second sample forwarded to me April, 1890, and analysed the same month, 
was from the vicinity of Mount Torrens, 20 miles east of Adelaide, and was obtained 
from Mr. J. E. Brown, then Conservator of South Australian Eorests, through the 
courtesy of Mr. Albert Molineux, Secretary of the Agricultural Bureau of that 
State. It yielded 39T per cent, of tannic acid, with 73 5 per cent, of extract. It 
was, of course, an admirable bark, but it was thinner than the preceding sample, and 
would at once strike an expert as second to it. But even this contained nearly 3 per 
cent, of tannic acid more than any other sample of wattle-bark of other species I 
have examined. It is, however, only fair to say that I was unable at the moment 
to procure samples of the best brands of Tasmanian clecurrens bark. 
In forwarding the sample, Mr. Molineux says : “ I he bark was taken from a 
height of about 2 feet above ground. It was from a large tree, of which there have 
been, and still are, great numbers in the locality. Mount Torrens district is the 
best in the State for rich, good bark.” 
The following are results of analyses of thirteen samples of A. pycnantha bark 
received from Mr. J. E. Brown. They were stripped 29th April, 1890, analysed a 
month later, and were grown on the Government Farm, Belair, South Australia. 
Height of trees, from 8 to 14 feet. 
Percentage 
Percentage 
No. 
Age, Diameter, and part of tree from which taken. 
of Tannic 
of 
Acid. 
Extract. 
1 
From butt of tree ; diameter, 3J 
in. 
(Age, 
37-5 
63 9 
about 5 years.) 
2 
From limb of No. 1 ... 
... 
... 
33-75 
63-25 
3 
From butt of tree ; diameter, 2 
in. 
(Age, 
28-5 
57 75 
4 years.) 
4 
From butt of tree; diameter, 1| 
in. 
(Age, 
36-25 
68-35 
3 years.) 
5 
From butt of tree; diameter, 2 
in. 
(Age, 
36-5 
64-25 
4 years.) 
6 
From butt of tree ; diameter, 2| 
in. 
(Age, 
37-5 
65-35 
4 years.) 
7 
From limb of No. 6 ... 
32-95 
63-25 
8 
From butt of tree ; diameter, 41 
in. 
(Age, 
37-25 
64-5 
5 years.) 
9 
From limb of No. 8 ... 
38-5 
66-2 
10 
From butt of tree ; diameter, 2 
in. 
(Age, 
35-95 
63-4 
4 years ) 
11 
From limb of No. 10 ... 
32-1 
63 1 
12 
From butt of tree; diameter, 3 
in. 
(Age, 
35-5 
64-85 
5 years.) 
13 
From butt of tree ; diameter, 4 
in. 
(Age, 
7 years.) 
35-45 
63 5 
Geological Formation, Soil, &c. 
Nos. 1 to 7 are taken from 
trees growing in an uneven 
basin, between the lower 
and upper ranges; soil, 
light sandy loam over gravel 
wash and yellow clay. 
No. 8, from the S.W. slope of 
the upper ranges ; soil, light 
clay over bedrock of hard 
sandstone. 
No. 10, from the top of upper 
range; soil, about 2 in. of 
light sandy loam over bed¬ 
rock of hard sandstone. 
No. 12, from N.E. slope of 
upper range ; soil, same as 
No. 10. 
No. 13, same as No. 8. 
