Vol. 60.] GLACIAL GEOLOGY OF TASMANIA. 43 



The authors of this [taper were well acquainted with the Palaeozoic 



glacial deposits of Victoria, so that their opinions naturally carried 

 much weight ; and they were soon supported by Mr. R. M. Johnston, 

 in his paper on ' The Glacier-Epoch of Australasia.' l He wrote that 



' the absence in lower levels of any evidence of ice-action confirms my opinion 

 as to the absence of intense glacial action during our Glacial and Pluvial 

 Epochs.' 



He accepted glacial deposits ' on the 2l82-to-240(J ft. Plateau 

 between Mount Sedgwick and Mount Tyndall ; but he suggested 

 that even some of these high-level glacial beds may be of Upper 

 Paheozoic age. He said - : 



The occurrence of what appears to be the older conglomerates, so closely 

 associated with newer drifts .... suggests doubt as to whether some of the 

 moraine-stuff, found on the flanks of [the] western mountains, upon whose 

 crests this older conglomerate rests, may not be confounded at times with the 

 true moraine-stuff of the more recent glacier-epoch." 



Further proof of the existence of the Upper Palaeozoic glacial 

 beds in Tasmania has been recently advanced by Mr. A. E. Ivitson. 5 

 He has described their occurrence at Wynyard, in a section which 

 is important, because it demonstrates that these deposits underlie 

 Middle Coal-Measures. 



The previously-cited literature proves the occurrence in Xorth- 

 Western Tasmania 



(1) of Carboniferous glacial beds; 



('-■) of high-level, recent glacial deposits— proved by Messrs. E.J. Dunn, T. i>. 

 Moore, Graham Officer, etc. ; further deposits probably of glacial 

 origin but of doubtful age, have been remarked by Sprent, elc. ; 

 and (o) its general conclusion — denied, however, by Mr. Moore, and to some 

 extent by Mr. Montgomery — is, that the recent glaciation was con- 

 lined to high levels. 



IV. The Glacial Deposits oe the King and Lixda Valleys. 



Despite, therefore, the clearness of Moore's description, the 

 literature on the glacial geology of Tasmania led me, in 1900, to 

 accept Johnston's conclusion that the last Tasmanian glaciation was 

 limited to high levels, and that the reported low-level 

 glacial deposits were either Upper Palaeozoic in age. 

 or not glacial. 



In the railway-journey across North-Western Tasmania, from 

 Emu Bay to Macquarie Harbour, I saw two conglomerates, which 

 struck me as resembling glacial deposits ; but I had no opportunity 

 of examining them, and, as the train climbed slowly up to Queens- 

 town, I saw many coarse gravels containing quartz-boulders, so 



1 Proc. Roy. Soc. Tasm. vol. iv, 1893 (1894) p. 126. ~ Ibid. p. 99. 



5 ' On the Occurrence of Glacial Beds at Wynyard, near Table Cape (Tas- 

 mania) ' Proc. Roy. Soc. Vict. n. s. vol. xv (1902) pp. 28-do. 



