Art. VI. — The Bone Clay and Associated Basalts at the 

 Great Biininyong Estate Mine. 



By T. S. hart, M.A. 



[Eead 8th June, 1899.] 



In the latter part of 1897 certain fossil bones were dis- 

 covered at the Great Buninyong Estate Mine, a number of 

 which came into my hands through the Hon. R. T. Vale, 

 Chairman of Directors. Others I collected myself. The bones 

 have been submitted to Mr. C. W. De Vis, of the Queens- 

 land Museum, whose notes on them are now presented with 

 this. One of those obtained by Mr. Vale showed evidence of 

 human action in shaping it. This bone and others have 

 already been exhibited to the Society. 



It remains for me to describe the occurrence of these 

 remains, and to offer some observations on the district. 



The locality has been geologically mapped and described by 

 Mr. R. A. F. Murray.^ I shall have later to refer to certain 

 differences in the lava streams and boundary lines between 

 them not indicated by him. 



The Mine. — The mine is situated about H miles south of 

 Buninyong railway station, and was intended to work the sup- 

 posed continuation of the Devonshire and Union Jack leads, 

 which had been worked some years ago. The workings had 

 stopped from the No. 8 shaft soon after the date of Mr. 

 Murray's report on the district, in which report the workings 

 of the mine were described. 



The lead is now covered by basalt, of which there are said 

 to be two flows. The No. 1 shaft of the present company was 

 sunk near the east edge of this basalt, but passed through a 

 thickness of 143ft., in which there are said to have been two 

 flows recognised, but the present manager, who took charge at 

 89ft. from the surface, says that the junction, if there are two 

 flows, is above that point. From 143ft. onward the shaft coa- 



1 Geological Survey of Victoria, Progress Report No. 1. 



