173 
of Edin burgli, Session 187 8 - 7 9 . 
6. “A little further north, at Laxford, a line surface is marked 
with striation from the H.W., being across the valley in which it 
occurs. At an opening in the hold gneissic coast which looks out 
upon the Pentland Firth, there is strong marking in a direction 
from M.W.” 
7. “The high desolate tract called Moin, between Loch Erihol 
and Tongue hay, where there is nothing that could restrain or 
guide the movement of the ice, exhibits striation from H. 28° W. 
8. “ Striae, FT. 25° W., occur four miles to the east of Tongue hay.” 
Thus at all these localities north of Gairloch visited by Chambers, 
the rock striations were such as to satisfy him that some vast agent 
from the N.W. — i.e., from the Atlantic Ocean — had struck upon 
the country, and left its marks on hills up to a height of at least 
2000 feet above the present sea-level. 
XVI. STRATHGLASS AND GLEN URQUHART. 
The Convener, in September last, proceeded up Strathglass, with 
the view of ascending the mountain called “ Mam Saul,” about 3880 
feet high, in quest of what was supposed by the Ordnance Surveyors 
to he an old sea terrace. Weather both stormy and hazy defeated 
this attempt ; hut whilst in the district, the Convener, accompanied 
by Mr J oily of Inverness, made some observations perhaps not un- 
deserving of being recorded. 
On the hill above Affric Hotel, on the east side of the River 
Cannich, a rock was met with, planed and striated, at a height of 
450 feet above the bridge across that river, and about 720 feet above 
the sea. The striae were running north by west, a direction coin- 
ciding with that of Cannich valley. 
At a height of 970 feet above the sea a granite boulder was lying 
on the upturned edges of the gneiss rock of the hill, lying in such 
a position as to indicate that it had probably come from a west by 
north direction. 
At the summit of the hill, about 1170 feet above the sea, numerous 
boulders were found, chiefly on slopes facing the N.W. 
On the high road to Drumnadrochit and Urquhart, at two or 
three places a few miles from Affric Hotel, rocks ground down and 
striated on the south side of the road were noticed. The strise were 
running about east and west, or parallel with the axis of the valley. 
