772 
Proceedings of the Royal Society 
Several of the hills on this Glen Sanda property reach to a height 
of 1800 feet and more. They show glacial action to their very 
summits, — by the rounded surfaces of the rocks where hard. But 
strata marked r. Most of the boulders on the hill slopes were 
grey granites. 
6. From Stage House, on Loch Shiel, examined a valley leading 
to the west. Ascended double-peaked hill of Fraoch Bheinn, 2680 
feet ; on approaching each summit, found many blocks apparently 
torn from their natural beds, and carried very short distances east- 
ward. In some of the belts of rock, sockets or hollows were 
observed, from which the blocks had been detached. These 
were from 20 to 40 feet below the east summit on its west side, 
aird had manifestly been pushed up hill. These blocks weighed 
from about a ton to 10 tons. The top of the hill is pointed in a 
remarkable manner by a block of about 6 tons, “which is nearly 
turned up on end. It did not seem to have been moved more than 
a yard.” 
7. (1) Fort-William District . — In company with Mr. Livingston, 
went up Glen Finnan, at the head of Loch Shiel, then over a hill 
of 2419 feet (name unknown). Much glaciation in the col between 
This dyke (8 to 10 feet thick) is a few feet below the summit-level 
of the col on the west side, thus : — a e being a transverse section of 
the col, d the granite dyke, and e blocks from the dyke, lying to the 
east of the dyke. The outcrop of the dyke was quite rounded ; some 
of its blocks were found one-third of a mile to the east, — none to 
the west. 
at one place a series of grey granite 
and red granite strata were seen 
to alternate thus : — the strata 
marked y, representing the soft 
grey granites, formed as it were 
trenches between the red granite 
it and the east top of Sgor- 
nan-Coireachan (2718 feet), 
a hill of gneiss. A great 
white granite vein or dyke 
cuts right through the col 
running N.N.E. and S.S.W. 
