president’s ADDRESS — SECTION C. 
63 
On page lxv. (op. cit.) is the following statement as to the 
evidence at Hallett’s Cove : — 
“ (2.) Smooth, grooved, and striated rock surface, and moraine 
tUbris at Black Point forming the southern boundary of Holdfast 
Bay. 
“ That headland presents a steep cliff face of about 50 feet high to 
the sea, and there stands a few yards from its edge a low mural 
escarpment of mioeeiie. The intervening space, which is nearly flat, 
is covered by drift material, chief amongst which are angular stones 
and blocks of red granite, gneiss, hornblendic slate, and quartzite ; 
the nearest depdfc for which is Normanville, 35 miles to the south. Over 
some few square yards the drift has been removed, disclosing a smooth 
surface of siliceous slate, striated and grooved in a north and south 
direction. 
“ (3,) Passing to the south, across the mouth of Fields Eiver, 
moraine debris and larger masses of transported rocks are seen 
encumbering the flat tops of the sea cliffs.” 
Professor Tate also states ( op . cit., p. lxv.), Mr. J. D. Woods, in 
letter 14th May, 1877, supplies the following particulars: — “ I think 
if you investigate the Torrens Gorge you will find evidences quite as 
strong as those quoted by Mr. Selwyn. On one side of the hill there 
is a stream of debris which my brother (Key. J. E. T. Woods) con- 
sidered to have been left by a moraine. In the bed of the river, near 
the cottage on the right side, there is a lump of rock which some 
twenty years ago used to he called the elephant rock. * * * 
The sides are indented with strife, and there seems to be no doubt 
that it must have been carried by some force from a long distance.” 
In 1878, Mr. Gavin Scoular, in a paper on the Geology of Munno 
Para, stated his opinion* that to the stranding of icebergs on the south 
coast of .Australia in past geological time is due the presence of 
erratic boulders, “ and probably also the volcanic bombs found strewn 
along our present coast-line and elsewhere throughout the drift.” 
These are the volcanic bombs described by Htelzner.f 
Presumably Mr. Scoular considers that these bombs were floated 
on icebergs from some active volcanoes in Antarctic lauds. 
During the same year, 1879, Mr. K. L. Jack, F.G.S., F.E.G.S., 
announced the discovery bv him of large boulders of granite, &c ., in 
the Permo-Carboniferous rocks of the Bowen Fiver Coal Field, in the 
following words J: — 
“ A few beds of conglomerate are met with chiefly in the lower 
part of the series — [middle marine series, Permo-Carboniferous, of the 
coalfield — T.W.E.D.]. The included pebbles are generally of granite, 
slate, schist, quartzite, and other metamorphic rocks, with a few of 
porphyrite. The pebbles, which are not always well rounded, have a 
remarkable tendency to arrange themselves in groups in some of the 
conglomeratic sandstone beds — a disposition which may possibly be 
* Trans, and Proc. Phil Soc. Adelaide, 1878-9, p. 08. 
t Ueber Ejgentlnunliehe Obsidian -Bom ben aus Australien. Von Herrn Alfred 
W. Stelzner, in Freiberg, i. S. Zoitschr, d. Deutschen Geolog. Gesellschaft, Jahrg., 
1893, pp. 299-319, pi. vi. 
X Report on the Bowen River Coal Field, by Robert L. Jack, p. 7, paragraph 39. 
By authority : Brisbane, 1879. 
