Glaciers and Icebergs in Scotland, 



135 



tongue of land at Row was probably the last moraine which 

 it formed on a considerable scale, before the ice finally dis- 

 appeared. Indeed, without assuming the former existence 

 of a glacier here, it would be difficult to explain how such a 

 bank of loose materials could have been accumulated in so 

 anomalous a position. If any one thinks the size of the bank 

 an objection, let him read Professor Forbes' account of the 

 ** Blocks of Monthey," and the " Glacier of Miage." {Travels 

 through the Alps, p. 5X and 103, 1st ed.) 



The evidence for the ancient existence of a glacier here is 

 thus threefold. We have grooves and furrows on the rocks 

 such as glaciers are known to form — we have travelled blocks 

 of great size, such as glaciers transport— and we have a ter». 

 minal moraine such as a glacier occupying a valley often 

 leaves behind it. 



The granite blocks, as I have said, open up a new ques- 

 tion, which must now be considered. 



Fig. 2. 



The above is a topographical sketch of the country from 

 Loch Lomond to Loch Goyle, and from the Clyde northward 

 to Benvorlich. 



G Gareloch. 



L Loch Long. 



