124 
about 4 ft. thick, which has metamorphosed the surrounding rock, the 
other about 12 ft. thick, decomposed to a clay. Siliceous sandstone veins 
occur in the glacial conglomerate. 
(Scale—40 chains to 1 inch.) 
About a quarter of a mile above this place a quarry has been opened 
in a workable face of sandstone underlying glacial conglomerate. The 
stone is slightly soft, but huge blocks could be obtained. Some of this 
stone was used at Parliament House, Melbourne, and, although Mr. 
Baird’s house has been built for fifty years, stone placed in position then 
still retains the sharpness of its edges. It should be suitable for use 
where the crushing strain is not too severe, and if selected and used with 
judgment. Care should be exercised in placing the bedding plane of 
the stone horizontally. 
Bald Hill .—The vicinity of Bald Hill is a very interesting portion 
of the Bacchus Marsh district (Fig. 44). The Permo-carboniferous rocks 
outcrop frequently on the hill slopes from allotment 8, sec. XVI., parish 
of Korkuperrimul, to the Korkuperrimul Creek, and in the sandstones 
several quarries have been opened to supply a local building stone; it 
does not, however, appear to have been much used of late years. A 
considerable amount of freestone—white, yellow, pink, and brown, has 
been taken from a quarry in allotment 8. The sandstones in this quarry 
are associated with the glacial conglomerate, and contain the fern Gran- 
gamopteris. In a quarry, about 40 chains further east, I found seme 
fossil plants ascribed by McCoy to Schizoneura, and near the hill-top 
