GLEN ROY, IN SCOTLAND. 
03 
phenomena appeared to me under a new as¬ 
pect. I found the bottom of Glen Spean so 
worn by glacial action as to leave no doubt 
in my mind that it must have been the bed 
of a great glacier, and Dr. Buckland fully con¬ 
curred with me in this impression. Indeed, 
the face of the country throughout that region 
presents not only the glacier-marks in great 
perfection, but other evidences of the ancient 
presence of glaciers. There are moraines at 
the lower end of Glen Spean, remodelled, it 
is true, by the action of currents, but still 
retaining enough of their ancient character to 
be easily recognized ; and some of the finest 
examples of the roches moutonnees I have seen 
in Scotland are to be found at the entrance 
of the valley of Loch Treig, a lateral valley 
opening into Glen Spean on its southern side, 
and, as we shall see hereafter, intimately con¬ 
nected with the history of the parallel roads 
of Glen Boy. These roches moutonnees may 
very fairly be compared with those of the 
Grimsel, and exhibit all the characteristic fea¬ 
tures of the Alpine ones. One of them, lying 
on the western side of the valley where it opens 
into Glen Spean, is crossed by a trap-dike. 
