Vol. 52.] GLACIAL ACTION IN ATJSTEALIA. 293 



the same geological age as that already referred to near Zeehan. 

 Its altitude was estimated to be 3500 feet. 



In 1893 Mr. A. Montgomery questioned the accuracy of Mr. T. 

 B. Moore's determination of the geological age of the glacial con- 

 glomerate at Mount Tyndall as being Permo-Carboniferous, and 

 suggested that it might be a re-distributed Permo-Carboniferous 

 conglomerate glaciated perhaps in Tertiary time. 



In 1893 Messrs. Graham Officer and L. Balfour l published an 

 account, well illustrated, of the Bacchus Marsh conglomerates. 

 They considered the glacial conglomerates referable to two distinct 

 epochs, one belonging to Permo-Carboniferous, the other to Tertiary 

 time. In a subsequent paper, 2 however, they withdrew their 

 opinion as to the evidence in this neighbourhood of any Tertiary 

 glaciation. 



In September 1893 Messrs. G. Sweet and C. C. Brittlebank 3 

 published an important paper on the glacial deposits of the Bacchus 

 Marsh district. They proved satisfactorily, in the author's opinion, 

 that none of the glacial deposits there observable were referable to 

 Tertiary time, but all belonged either to a late Palaeozoic or early 

 Mesozoic age. They described the glaciated rock-surfaces previously 

 discovered by Messrs. Brittlebank and Graham Officer, quoting evi- 

 dence to show that the striae trend from S.W. towards N.E., and that 

 the ice which produced them moved in a north-easterly direction. 

 They estimated the thickness of the glacial beds at about 5000 feet, 

 and determined their elevations as ranging from about 700 to 1400 

 feet above the sea. The sandstones near the top of the glacial series 

 contain Gangamopteris angustifolius, M'Coy, G. obliqua, M'Coy, and 

 G. spathulata, M'Coy, while in shaly sandstones on a somewhat 

 higher horizon fragments of plants resembling Schizoneura, Zeugo- 

 phyllites, etc., have been observed. 4 



In November 1894 Mr. T. S. Hall 5 contributed a note on the 

 bibliography of the Bacchus Marsh Glacial Deposits. 



In January 1895 the author submitted the report by Prof. 

 Ealph Tate, Mr. Walter Howchin, and himself on the Evidences of 

 Glacial Action at Hallett's Cove to the Australasian Association for 

 the Advancement of Science. This is published in the volume for 

 1895 issued by the Association. On April 3rd, 1895, Mr. Walter 

 Howchin contributed a paper on the same locality, 6 in which he 

 gives a detailed account of the glacial phenomena, and arrives at 

 provisional deductions. 



1 Proc. Eoy. Soc. Victoria, n. s. vol. v. (1893) pp. 45-68, pis. x.-xii. 



2 Ibid. n. s. vol. vi. (1894) pp. 139-143. 



3 Eep. Austr. Assoc. Adv. Science, vol. v. pp. 376-389, Adelaide, 1893. 



4 Annual Keport of the Secretary for Mines, Victoria, for the year 1893, 

 pp. 18-19. Melbourne, 1894. 



5 ' The Victorian Naturalist,' Melbourne, 1894, pp. 125-128. 

 G Trans. Eoy. Soc. South Australia, vol. xix. pt. i. pp. 61-69. 



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