Froceedlmj'i <>f the Roijal Society of Victoria. 275 



(Carboniferous times there was a distinct break in tlie flora, 

 and at the close of Perrao-carboniferous times there was also 

 a distinct break in the flora. He was inclined to agree with 

 Mr. Pritchard with regard to the Mesozoic sandstones. They 

 had been assigned to Mesozoic age, simply on the evidence 

 (if tin-ee species of Gangamopteris. Seeing that these occurred 

 associated with Glossopteris in Permo-carboniferous beds in 

 New South Wales, and, as it had been stated by Professor 

 David that Gangamopteris was a more primitive form than 

 Glossopteris, it would almost seem as if these beds were of 

 an earlier age than Mesozoic. Mr. Griffiths had also said 

 he did not think that an}^ ice ever passed over the till at 

 the quarry where the Iractui-e in the sandstone occurred. 

 On liis last visit to the same quarry, he had found a similar 

 fracture filled with till-bearing striated stones at a much 

 higher level, and about half-a-mile further up the creek 

 there was a great thickness of this till, exposed at a height 

 between sixty or seventy feet. If that had been accumulated 

 under a glacier, the glacier which could have accumulated it 

 must have extended much further down the valley, and it 

 was probable it did over-ride these stones. The sandstone 

 rock was very soft, and woukl not show strise. It had been 

 subjected to much denudation. The rocks also dipped at a 

 considerable angle up to 35 degrees, and a glacier coming 

 down the v.Jley of soft sandstone would be i-ather likely to 

 fracture them and give them a rugged appearance. On the 

 whole, he did not think anything had been said which 

 would lead them to suppose these deposits were due to 

 anything else than glacier ice. 



Mr. Steele read a paper on "The Conductivity of Cop])er 

 Sulphate Solutions." 



The President said that as it was now past ten o'clock, 

 the other papers would be held over till the next meeting. 



Thur-sdai/, Septntiher Sth. 



The President (Professor Kehnot) in the chair. 



The minutes of the last meeting were read and confirmed. 



Mr. Hogg signed the Roll Book and was introduced to 

 the members. 



