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GLACIAL BEDS—VICTORIA. 359 
of the road, about 30 yards long, and having a maximum height 
of about 15 feet. It consists of a purplish soft clay, which in wet 
weather turns into a stiff mud on the exposed surface. It con- 
tains large numbers of striated and flattened stones and blocks 
of granite and quartzite, showing no signs of arrangement. No 
traces of stratification can now be recognised. The mean height 
of this cutting is about 650 feet above the sea level. About east 
15° south from this cutting isa conical hill of olivine basalt, locally 
known as Adam. Through the northern face of this hill penetrates a 
dyke of trachyte running from west to cast. This has been quarried 
out for building purposes, and at the eastern end of the dyke, and 
on its southern wall, the boulder clay is again exposed. It con- 
tains striated stones similar to those in the cutting just described ; 
but the clay does not appear to have undergone any contact 
metamorphism. Having regard to its position with respect to the 
voleanic mass Adam, the absence of contact metamorphism from 
the dyke, and the general nature of the clay itself, I am inclined 
to think it owes its present position, banked up against the dyke, 
to a land-slip. The surface of a grassy slope rising from this out- 
crop in a south-westerly direction carries a large quantity of 
striated stones and foreign material. The exposure of boulder-clay 
on the side of Adam is at a level of 445 feet above the sea. The 
remaining outcrop of the glacial beds which I found in the district 
occurs on the railway-line as it passes over the northern slope of 
Mount Koroit, about 2 miles from Coleraine Station, at a level of 
about 400 feet above the sea. The cutting is nearly 120 feet long, 
and has a maximum thickness of 18 feet. The glacial bed here 
shown is identical with that exposed in the cutting on the Koonong 
Wootong Road, save that the boulders of granite found in it are 
of larger dimensions. The relation of the bed in the railway- 
cutting to the adjacent rocks is very obscure. It appears to occupy 
a pocket in the trachytic rock, which is exposed in the road just 
below, and occurs in large extension around it. Basalt, basaltic 
tuff, and a sanidine-bearing rock are all exposed not far to the east 
of the cutting. To the south and south-west of the cutting a large 
development of Mesozoic rocks occurs. On the eroded surface of 
the hill, lenticular patches of coarse sandstone covered by alluvium 
are seen. Stratification cannot be traced in the cutting. 
The foreign material, either exposed in the cuttings or found 
lying on the surface within the glacial area, comprises coarse and 
fine-grained granite (the latter predominating), tourmaline-granite, 
quartz, quartzite, felspar and quartz porphyry, slate (unfossiliferous), 
and the fine-grained micaceous sandstones. The erratics are all 
of moderate size, the largest being a ternary granite. 
With a view to ascertaining the age of the beds, a careful search 
was made for material similar to that of the surrounding rocks of 
igneous origin and for sandstones of a Mesozoic type. In no case 
