peesident’s addeess — SECTION c. 
73 
Mr. Pritchard states (op. cit., p. 182) — 44 To the north of the 
township there are evidences which seem to be attributable to none 
other than glacial action, for the exposed surface of the rock is very 
flat and smooth, and in many places scratched and scored, the general 
direction of the striae being north and south, and occasionally deep 
and smooth grooves arc met with. I did not see any rocks of foreign 
material in this locality, but numerous angular and subangular 
fragments of the hard limestone. At the coast, however, about one 
mile to the north of Port Vincent, there are several large boulders of a 
coarse granite with large felspar crystals, which may have been carried 
there by glacial agency ; but, as I am informed that granite occurs in 
situ both to the north and south of this locality, the presence of these 
boulders may have been due to other causes.” 
In 1892 Mr. E. J. Dunn’s special report on the glacial deposits 
of Wild Duck Creek was published by the Victorian Government.* 
This memoir is beautifully illustrated with plates from photo- 
graphs taken by Mr. A. \V. Howitt. 
The glacial conglomerate is described as being at least 200 feet 
thick, and as having sandstone interstrati fie d with it. 
Mr. Dunn was fortunate enough to discover a powerfully striated 
rock surface near Derrinal, the grooves trending north and south. 
This surface, he thinks, was grooved by fioatiug ice. He describes in 
detail the large granite erratic known as the “The Stranger,” and 
weighing about thirty tons. He is cautious as to expressing any 
opinion as to whether the ice came from the south or from the north. 
Many of the boulders in the moraine, he states, are unlike any rocks 
found now in Victoria. 
The level of the upper portion of the conglomerate is about 700 
feet above the sea, but the base of it must be many hundreds of feet 
lower. 
In 1892 Mr. Dunn, in company with Mr. T. B. Moore, discovered 
evidences of ice-action on the high plateau in the neighbourhood of 
Mount Dora, in Tasmania. 
In 1893 Mr. E. J. Dunn published an account of the glaciation of 
Lake Dora, which is twelve miles distant from Zeehan, on the west 
coast of Tasmania, and 2,500 feet above sea-level, f 
There are evidences there of glacial deposits belonging to two 
distinct periods— (1.) An ancient glacial conglomerate like that of 
Wild Duck Creek, in Victoria, 3,000 feet above sea-level, the included 
boulders of which are beautifully striated (op. cit ., p. 138). (2.) Ear 
newer and comparatively recent moraines and striated pavements. 
The latter, near Lake Dora, show the valley to have been filled 
with ice to a depth of at least 400 to 500 feet. 
At Lake Kolleston there is a large terminal moraine 150 feet 
high and 250 feet wide, some of the blocks of which it is composed 
being over 100 tons in weight. 
The lowest altitude to which glaciation extended was probably 
about 2,000 feet (op. cit ., p. 137). 
Eurther evidences of glaciation in Tasmania have been described 
by Mr. T. B. Moore, who states that at Mount Tyndall the surfaces of 
* “Notes on the Glacial Conglomerate of Wild Duck Creek,” by E. J. Dunn, F.G.S, 
Special reports, Department of Mines, Victoria. By authority : 1892. 
f Proc. Roy. Soc. Vic., 1893, pp. 133-138, plate viii. 
