Proceedings of the Royal Society of Victoria. 209 



by a veiy small glacier indeed from some steep mountain 

 close by, removed by erosion, the glacier itself" having no 

 v/oight or body, but able to bring down stones and tilt 

 them out. This was a very strong point of difference 

 between the two beds of so-called glacial till. Then, 

 with regard to the age as.signed to the upper body as 

 being Miocene, tie failed to see that there was any evi- 

 dence at present that would enable them to assign such an 

 early age to the bed. Messrs. Officer and Balfour stated 

 that it was overlaid by a Miocene lava, but he understood 

 them now to retract that statement, and to sa}' they believed 

 that the lava was the recent lava which was found all about 

 the little cavities. Miocene lava was found there, but the 

 Government geologists had not rej)resented it as overlying 

 the Mesozoic sandstones, but stated that it was intrusive 

 and pushed its way through. They represented it as pro- 

 jecting from below, and the Mesozoic sandstone lying upon 

 it. The later lava was distributed all over the country, 

 and lay sometimes on the Silurian, and sometimes on the 

 Mesozoic sandstones, and sometimes upon the conglomerates, 

 which had been described by the authors. Therefore, there 

 was no evidence that he could see, which would justify 

 these gentlemen in attributing to this upper boulder clay 

 the age which they had given to it. Their second pro- 

 position was to the effect that the boulders of both 

 these epochs were due to land ice and not to icebergs. 

 With regard to that, the giooves and strite of the Silurian 

 ran from north to south. As Mr. Cresswell had pointed 

 out, that might be produced by the character of the rock 

 itself ; but if there were grooves and strise there, they 

 were just as one would expect to find them, because the 

 highland there was always found to the north of this point, 

 and ice travelling from the mountain cap must ha\*e taken a 

 n(jrth and south dii-ection. Had these marks been produced 

 by the grounding of icebergs, one would expect to find some- 

 thing quite different. Icebergs would travel first of all upon 

 the general trend of the coast, which was from west to east. 

 They would travel with the currents of those seas, and as 

 the prevailing winds in this locality were from west to east, 

 so the currents were from west to east, and one would 

 expect to find the icebergs travelling with the currents and 

 with the winds and along the coast line, all three of which 

 ran from west to east. Therefore, if they produced any 

 strife at all, theSe stria? would run from west to east. But 



