GLACIAL ACTION IN AUSTRALASIA. 173 
The Hindmarsh, which, although named a river, is really but 
an insignificant creek, makes a somewhat sudden descent from 
the hilly country known as the “ Hindmarsh Tiers,” at Nettles 
Hill, about 9 miles from the sea, and from this point flows 
through a rich ailuvial valley. The bed of the creek, for the 
most part, is in alluvial wash of considerable thickness, which 
effectually masks the geological features. Towards the head of 
the valley, however, on the Beaudesert Farm, and from thence 
to the foot of the ranges the glacial sandstone can be seen at 
intervals in the bed and sides of the creek. About a quarter of 
a mile below the Beaudesert farmstead the glacial beds have the 
character of a soft flagzy sandstone, carrying erratics, and ex- 
hibiting a dip of 18 degs. N.N.E. About a mile further north 
similar beds, with fewer erratics, form a cliff, on the western 
banks of the stream, 15 ft. in height. Here the beds have a 
dip of 12 deg. 8., 3 deg. E. 
At various points in the cultivated paddocks, as well as in the 
bed of the stream, near Beaudesert, and on the low range of 
hills separating the Hindmarsh from the Inman Valley, large 
eranite boulders up to 7 ft. in their longer axes were observed. 
The watershed between the two valleys named, which is 
about 3 miles wide, has a superficial covering of loose white 
sand, which is probably the result of the disintegration of the 
soft glacial sandstone which is seen in many places to underlie 
these surface features. 
No erratics were observed on the high ground at the head of 
the valley, and it seems likely that the abrupt escarpment of the 
Hindmarsh Tiers diverted the ice-flow in a westerly direction, 
where it found its outlet into the Inman Valley, joining the 
main stream, which in opposition to the present lines of drain- 
age overflowed the watershed of the Bald Hills, passing into the 
valley of the present Gulf St. Vincent. 
As the stream, in no part of its course below the Tiers, passes 
over bed-rock, and as the base of the glacial beds is not ex- 
posed, no opportunity was given for observing polished or 
striated surfaces on the elacial. floor. 
Kancaroo Isnanp. 
ef. Trans. Royal Society, S. Aus., Vol. xxiii. (1899), p. 198. 
The localities examined for glacial remains embraced the 
north-east portion of the island from Queenscliffe, around the 
Bay of Shoals, Point Marsden, and the northern coast as far 
west as Smith’s Bay. No special reason existed for selecting 
this district for observation, but it proved very fruitful of 
results. 
The geological features of the island are, to a great extent, 
obscured by superficial deposits of sand and travertine lime- 
