630 D. MILNE HOME ON THE PARALLEL ROADS OF LOCHABER. 
the “‘ River Treig, sweeps round in the direction of the mouth of the glen and 
lake of that name. It enters the jaws of the pass into Loch Treig, in the 
manner represented in plate vi.” 
AgGassiz and CHAMBERS also attest the existence of a shelf in Loch Treig. 
Last October, in company with the Rev. Mr Cameron of Kilmonivaig, I 
walked along the south bank of Loch Treig for about two miles from its mouth. 







Fig. uw. 
Section of north bank of River Treig, to show two terraces or shelves, CD being supposed to be 
Shelf 4, AB being a separate shelf or water-line, from 25 to 30 feet lower. 
We made the following discoveries :— 
The lowest shelf, viz., No. 4, we thought was recognizable at one place on 
the east bank of the loch—two miles from the north end. It was formed on 
























Fig. 15, (pp. 630 and 641) 
B is Loch Treig. C are rocks on the south bank, about half a mile from north or lower end 
of Loch. A is a bed of stratified white sand, much frequented by rabbits. Its surface is about 
40 or 50 feet above the lake. A Boulder 5 feet high and 24 wide stands partly buried in the 
sand. ; 
a bed of detritus. This, however, was only an inference from the fact o: there 
being a flat bit of detritus at the same height above the lake as Shelf 4,—viz., 
91 feet. In looking across the lake we observed a similar flat at a corresponding 
level on the opposite bank. 
At the entrance of Loch Treig I found what is shown on figure 14, 
where C D is Shelf 4. It stops about 100 yards from the entrance to the 

