BY R. VON LENDENFELD, PH.D. 53 



3. One glacier sy.stem has been discovered on the highest part of 

 the Australian Alps. The glaciers extended from a high ])lateau — 

 Mount Kosciiisco — down into the valleys around. The glacial area 

 may be estimated at at least 100 square miles. There were small 

 glaciers at the source of the Murray, not extending far down the 

 plateau, there was a small glacier at the head of the Crackenback. 

 The largest glacier tilled the valleys at the sources of the Snowy 

 River and probably extended for some distance down the Snowy 

 Valley. 



4. As even on the highest elevation the glaciers were so small 

 it is not likely that glaciers existed anywhere else in Australia 

 at the time. 



5. The glacial period in Australia was probably isochrone with 

 a pluviatile period, vvhen the rivers were large and when there was 

 a dense vegetation in many parts of the country which now are 

 barren, and which was sufficient to feed the gigantic Diprotodon 

 and other fossil marsupials. 



EXPLANATION OF PLATES. 



Plate 7. — Muller's and Abbott Peak and Wilkinson Valley from Mount 

 Townsend from a sketch taken by the Author on 11th January, 



1885. 



Plate 8. — The same as it would appear in the glacial period. 



