65 



on the quartzite hills four or five hundred feet high, about 

 two miles from and lying above the entrance to the harbour, 

 I noticed the rocks very worn, smooth, and planed, and at the 

 time felt, convinced that it was by the agency of ice that the 

 natural surface of the quartzite had been altered, though the 

 positive proof of striae and groovings was wanting. 



It may be surmised that these planed surfaces and the de- 

 posits of glaciated boulders on the shores of the harbour are the 

 results of stranded polar drift ice. If such was the case the 

 ice drifts must have occurred before the elevation of the land 

 and beaches, and if so we would obtain traces of glacia- 

 tion in the palaeogene deposits, which we do not. It, may 

 have been possible since the elevation of the land for drift ice 

 to have been driven into the harbour through the entrance, 

 but surely we should see some evidences of stranded bergs 

 there. 



The similarity in the composition of the scored boulders at 

 Farm Cove is more puzzling to account for than any other 

 feature in the matter. 



I regret, through pressure of time, being unable to add a 

 map of this district, for the charting on the large official map 

 of the colony of Mounts Sorell and Darwin and the surround- 

 ing country is very incorrect, both mountains being mapped 

 three miles too far to the eastward and not far enough south, 

 besides other physical features being incomplete and wrongly 

 depicted. In 1887 I corrected the errors on the Mines Office 

 chart, and that map would give a better idea of this locality. 



