60 
The Queensland Naturalist. 
VoL. I, 
The Museum contained furtlier examples of a similar 
earthy mineral from Woodbine, near Gatton. A sample 
of this I have received through the courtesy of the Geolog. 
Survey Office, and now exhibited. This also had been 
analysed at the Government Analyst’s Laboratory ; the 
analysis being as follows : — 
Tripolite from Woodbine, near Gatton, S. Qld. 
Silica insoluble 
.. 7.61 
Silica soluble 
.. 7.8f 
Alumina 
. . 5.1 
Iron 
traces 
Magnesia 
. . 0.8 
Lime 
, . Nil 
Loss at 115 degrees (water) 
. . 5.5 
Loss at Red Heat (water) 
. . 5.8 
100.8 
I have also received from tlie source wherever the last 
mentioned specimen was derived, a pale grayisli brown 
example of the same mineral from Nerang, which is also 
submitted. 
On examining the specimen received from Mr. Lahey, 
as also that from Woodbine, Gatton, I find that both con- 
tain diatoms of more than one kind in very large numbers, 
and that microscopical investigation confirms the con- 
clusion based on chemical composition. 
The analysis indicates that clay is present in small 
proportions only, which at once forbids its being associated 
with the argillaceous Cimolite. 
To Mr. W. R. Colledge has been given specimens for 
more precise microscopical examination, and his observa- 
tions should lend great interest to the exhibit. 
GLIMPSES OF THE CAIRNS FERN WORLL. 
By H. Tryon, 
The fern-specimens exhibited were secured during 
a ramble of a few hours’ duration in the iVTountain Scrub 
at Hambledon, near Cairns, in July of tlie present year. 
Tliey are representative of those more commonly met witli 
growing in or near the soil there, but do not however embrace 
any examples illustrating the tree-ferns. Doubtless, a 
more prolonged search over a wider area would reveal 
many more fern-species growing in the district, but those 
shown will illustrate what opportunity the local student 
has for studying the interesting class of plants they repre- 
sent, and what a rich supply of ferns tlie Cairns scrubs 
