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of Edinburgh, Session 1880-81. 
In passing along the new line of railway, between Oban 
and Loch Awe, one can notice many smoothed rocks, all like 
those before-mentioned, facing Loch Awe. A number of these 
smoothed rocks are covered by beds of line gravel, sections of 
which, showing rock and gravel, are well seen on both sides of 
the railway which cuts through them. The best examples are near 
the village of Stonefield, to the east of Connal Ferry. The height 
above the sea here is about 40 feet, and traces of the well-known 
sea-terrace, so prevalent around the coast, are here observable. As 
one advances towards Taynuilt and Bridge of Awe, the detritus 
occurs in larger quantities. At Bridge of Awe it forms mounds, 
which are no doubt due to the removal of other portions of the 
detritus by the rains and streams descending the steep sides of 
Cruachan on the one side, and of the hills on the opposite side 
of the Etive valley. The Awe itself has on its banks, scaurs of 
detritus 20 to 30 feet in depth, and there are marks showing that 
the river has run in a different course and at a higher level. 
The whole of this valley is full of boulders of granite, mostly 
grey, but occasionally red. These boulders generally lie on the 
detritus, and in many cases are covered by peat which has grown 
in the pools, or what had been pools, in the detrital hollows. 
On ascending the hills on the west side of Bridge of Awe, which 
I did to the height of about 400 feet above the sea, I found boulders, 
especially on the slopes facing the north and east. They may, no 
doubt, have crossed the valley from Cruachan. I measured several 
of the largest, which were 5 or 6 feet in length by 3 or 4 feet in 
width and height. There were among them small boulders of well- 
rounded quartzite, which suggested a northern origin. 
The large granite boulder on the roadside between Taynuilt and 
Bridge of Awe, nicknamed Sir Walter Scott, lies on detritus. 
5. Locli Sweyn . — Having heard of some large-sized boulders in 
this neighbourhood I went there, accompanied by Mr Alexander of 
Loch Gilphead. 
At Ardna, on the farm of Mr Macmillan, near Kilmory Bay, I 
examined a surface of smoothed slate rocks, covered by long 
and deep striations running W. by S. and E. by H. Unfor- 
tunately I omitted to observe from what direction the striating 
agent had moved, but as the smoothed surface of the rock sloped 
