220 Proceedinr/.s of the Royal Society of Victoria. 



on the south coast, near Wai'rnambool. The upper beds were- 

 evidently teulian. At present they were lying in the direction of 

 the prevailing winds, and the lee side of the slopes, which were 

 at an aiigle of about 32^, had evidently been very little disturbed. 

 The slopes that were to leeward were the ones in which the 

 quarries were worked. The seaward beds were very much 

 disturbed, and if traced down to high-water mark would be 

 found to be quite hard, instead of soft as at the top, and as in. 

 most modern beaches. But, as far as he could judge, the levels 

 seemed exactly the same. 



Mr. Gpjffiths said he was of opinion that whatever movement 

 tiiere had been had carried the whole of the locality up evenly,, 

 and lowered it again evenly, and that the divergence between the 

 levels of the calcareous beds and the conglomerates intercalated 

 between the calcareous beds and the levels of the old land surface- 

 wliich ran pai'allel to the lava bed surface, was not due to any 

 tilting at all that had taken place in the locality (the beds 

 having moved up and down together) ; but that the surface 

 angles were due to the way in which the sandstone beds were 

 deposited, or to the way in which those beds had eroded. 



Mr. Dkxnant asked Mr. Griffiths if he had found any sign of 

 any rock beneath tlie basalt. It would be interesting to know 

 what rock was found underneath the basalt. He thought these 

 deposits would be found underneath the basalt at the Barwon, if it 

 could be penetrated. He would also like to know if there was. 

 any evidence as to whether that basalt was the newer basalt or 

 the older basalt. That might afibrd some clue perhaps as to the 

 iige of the overlying rocks. As a matter of fact, the newer basalt 

 was never overlaid by the limestone referred to by Mr. Griffiths. 

 He knew of no instance of such being the case in any part of the 

 colony. As Mr. Griffiths had hinted, the basalt might be 

 continuous across the Straits, and possibly might extend right 

 across to Western Port. With regard to the term " sandstone " 

 he supposed Mr. Gritliths had used it as a common term. ,He 

 believed it was composed mainly of portions of shell, the same as 

 at Warrnambool. He had heard lately of an analysis of the 

 Warrnambool sandstone, and, speaking from memory, he thought 

 there was something like 95 per cent, of carbonate of lime in it. 

 As to tlie doubt expressed by Mr. Griffiths with reference to the 

 origin of the rocks — whether they were reulian or sedinientary — 

 he would like to know whether any attempt had been made to 

 isolate particles. He thought that might enable them to decide 

 the question. If the particles of which the rocks were composed 

 wei-e angular, they were not sedimentary rocks ; if they were 

 rounded, they probably were sedimentary, ^^^olian rocks always 

 Jiad angular particles. He had no doubt that the rocks referred 



