BY R. VON LENDENFELD, PH.D. 49 



seen any roches moutonnees in his life before ; was immediately 

 very much struck by the appearance of it. 



There, there is one rock polished off with a surface of about 3 

 acres and about 25 other much smaller ones around it, all polished 

 down to exactly the same surface, divided from one another how- 

 ever by depressions of varying depth. 



The most numerous and the best preserved of these roches 

 moutonnees are found in a valley, which I name after our 

 President the Government Geologist, Wilkinson Valley. As I 

 have studied this valley most minutely and as it is doubtless the 

 highest valley in Australia, I shall describe it and also the glacier 

 which at one time tilled it. 



On Plate 7 and 8, the Wilkinson Valley is represented, as seen 

 from Mount Townsend, which I ascertained to be the highest 

 peak in Australia. The Wilkinson Valley is enclosed by the 

 Abbott Range and Miiller's Peak in the north and north-west, by 

 the Main Range for a mile on the east and by the Wilkinson 

 Range on the south-east. Its main direction is from N.E., to 

 S.W. For the upper three miles of its length its bottom is broad 

 and flat and lies very high, forming part of the Kosciusco plateau, 

 Then the fall which is only about three feet to the mile in the 

 upper part rapidly increases and at the same time the valley 

 becomes quite naiTow so as to represent a steep ravine. 



From the Abbott Range a broad spur descends in a southerly 

 direction into the upper flat part of this valley and forces the 

 stream in its bottom to curve round in the same direction. 



On the sides of this valley but particularly on this spur ruches 

 moutonnees are very numerous and it is easy to see how far the 

 glacier reached up the hill side by the extent of these glacier 

 polished rocks. 



In plate 7, this spur with the polished rocks is seen " en face " 

 just opposite, 



Plate 8, represents the probable shape and size of the glacier 

 when it filled that valley. Of course I name the glacier after the 

 valley which it helped to scoop out, 

 4 



