GLACIAL COMMITTEE. 201 
glacial beds has been published by Mr. Maitland.*—“ During 
the course of the examination of the country between the 
heads of the Wooramel and the Minilya Rivers, one of the 
most amportant contributions of this State to pure science 
was obtained. There has been discovered. associated with 
the Carboniferous rocks, an extensive deposit of glacial 
origin. This deposit has already been proved to exist for 
a distance considerably over 60 miles. Although this seems 
to be one of those things which interest the scientist only, 
it affords, from a practical point of view, a most important 
stratigraphical horizon, which can be readily recognised and 
traced across country for a considerable distance, and which 
will prove of material assistance in any boring which may 
be undertaken in the future. With this deposit, the char- 
acter of which is shown on Plate III., are ice-scratched 
boulders, photographs of which are attached, Plate IV.” A 
feature of special interest connected with this discovery is the 
fact that these glacial beds extend into the tropics. The 
only other locality im Australia where Permo-Car- 
boniferous (7) glacial beds have as yet been identified in the 
tropics is that discovered by Professor Baldwin Spencer and 
Mr. Gillen at Yellow Cliff, Crown Point, in the valley of the 
Finke River, Central Australia. 
With regard, however, to Permo-Carboniferous glaciation 
in tropical Auitralia, the fact should be mentioned that Mr. 
R. L. Jack, the late Government Geologist of Queensland, 
has recorded the occurrence of small erratics, which he con- 
siders to be ice-borne, in the Middle Bowen series of the 
Permo-Carboniferous system of Queensland. No undoubted 
traces of the (a) ( = Cainozoic) or (c) (= Cambrian) glacia- 
glacial markings have as yet been noticed upon them. No 
tion have as yet been observed in West Australia. There 
is, however, in my possession a photograph taken by, the 
late Mr. Beecher, of the Geological Survey of West Aus 
tralia, of a remarkable conglomerate at Nullagine, Pilbarra, 
W.A., which so closely resembles in general appearance the 
Cambrian glacial beds of South Australia as at once to 
suggest a possible glacial origin for the West Australian 
beds. They also are associated with a very finely-laminated 
shaly altered rock, not unlike the Tapley’s Hill shales, which 
overlie the Cambrian (?) glacial beds of South Australia. 
These Nullagine beds are probably of Older Paleozoic age 
(possibly pre-Cambrian), and should well repay further in- 
vestigation. 
* Annual Prog. Rep. Geol. Survey, West Australia, for the year 
1900, p. 28. 
