THE LOCH LOMOND AND OTHER VALLEYS. 219 



examples presented of valleys excavated in the line 

 of faults. The Arve, Rhone, Visp, and their many 

 secondary valleys, show countless instances where 

 subterranean movements have aided denudation in 

 carving out the features now existing, and in the 

 narrow rocky gorge where the Aletsch glacier (the 

 longest in Europe) ends, the work of denudation, 

 combined with shrinkage lines, is most apparent. 

 That both agents should be allotted their respective 

 tasks appears to me necessary in unravelling the 

 geology of most districts." 



An examination of the Chart of Loch Fyne l is not 

 without interest. The south portion of this fiord, as 

 far north as Loch Gilp, bears nearly N. and S., but 

 the rest of it has a general bearing of N.E. and S.W.; 

 the fiord widening out considerably where these two 

 portions join into one another. When, however, it 

 is examined in detail, other peculiarities will be 

 observed. At the entrance of the bay, and south of 

 a line (N. 70 E.) drawn through East Loch Tarbert, 

 the deeps run about N. 15 W.; but at this line they 

 are shifted considerably towards the west, while north 

 of it they bear nearly N. and S. to High Rock, which 

 lies due N.E. of Maol Dubh Point. A little S.E. of 

 Maol Dubh Point there is a space over 80 fathoms 

 deep, with one portion over 90 fathoms, and from 

 this deep there extend others of less magnitude 



1 Admiralty Charts, Scotland, West Coast, Loch Fyne. 



