116 RESEARCH COMMITTEES. 
beds of sandstone grit and boulder sandstone, and these beds rest 
on the primary rock (quartzite), from which they dip at angles 
varying from 10° to 15°. They appear to be interstratified with 
the shale. 
“This shale deposit seems to occupy a basin beneath the 
overlying Tertiary beds, and for that reason its extent cannot be 
ascertained by a mere surface examination. * * * Asa 
consequence of no fossiliferous remains having been so far met 
with, no evidences are given of the geological age of this deposit, 
but as it underlies Miocene Tertiary strata, it may be classed as 
probably belonging to the older Tertiary or to the Mesozoic rocks.” 
In relation to the surface geological features of the Inman 
Valley, Mr. Brown states further, ‘Large boulders of granite, 
sandstone, quartzite, quartz, &c., occur along the valley of the 
Inman River, as well as in other parts of the area, embedded in 
the clay-beds, and resting on the surface. The presence of these 
boulders in the position in which they are found can be accounted 
for only on the supposition that they have been transported from 
their original position by glacial action.” 
From the isolated position of this singular clay deposit, differing 
as it does from all other local rocks, and its uniformly dark 
colour, Mr. Brown suggested the possibility of its being coal- 
bearing, and during the three years, 1892-95, the Victor Harbour 
Coal Company tested it for this object. Three bores were put 
down in the Back Valley in a lineal direction a mile or two apart. 
No. 1 Bore reached a depth of 950 feet, and was stopped by 
jamming of tools before the bed-rock was reached. No. 2 Bore 
was also choked at a depth of 570 feet, and had to be abandoned. 
No. 3 Bore recorded a depth of 975 feet, the last 11 feet of which 
was supposed to be in bed-rock (primary). Particulars of this 
bore will be given on a later page. 
In 1895, in a paper read before the Royal Society, S.A., on 
‘“‘ New facts bearing on the Glacial Features of Hallett’s Cove,* 
one of us anticipated that these thick mudstones of the Inman 
and associated valleys would prove to be of glacial origin, and in 
age synchronous with the glaciation of Hallett’ s Cove, There is 
now little doubt that this is actually the case. 
In March last Mr. W. Howchin, F.G.8., of the local Glacial 
Research Committee, together with Professor David (General 
Secretary of Research Committee), and Mr. C. C. Brittlebank, 
of Myrniong, Victoria, visited the Inman Valley and Norman- 
ville with the intention of investigating the glacial features of the 
neighbourhood, and more particularly bent on the re-discovery of 
the polished glacial pavement referred to by Selwyn in his 1859 
report. Starting from Port Victor, the occurrence of large 
* Trans. Roy. Soc., S. Aus., Vol. XIX, p. 68. 
