81G 
Proceedings of the Royal Society 
boulders. One 16x6x5 feet, leaning on the others, must have 
come from N.W. to attain its position. 
On hill to east of Ashernish^ and on Mingary Hill^ there are 
many large boulders, chiefly on west flanks, as also striated rocks, 
well deserving of study {Lithograph N’o. 24, Plate IX.). 
About 3 miles to north of Askernish there is a block of granite 
perched on the pointed summit of a rocky hill. The boulder is 
14x12x8 feet (about 100 tons) {Lithograph Xo. 25, Plate IX.). 
There is no way in which it could have attained its position except 
by floating ice. 
At Jocdar, IJ miles south of ferry between Uist and Benbecula, 
there are smoothed rocks “ literally covered by parallel striae, ruts, 
and grooves,” the direction of which is X. W. by W. The smoothed 
surface of the rocks here slopes down to westward, at an angle of 
about 10° or 12°. Some of the ruts are 4 or 5 feet long. One at 
its X.W. end measures 8 inches across and 2 inches in depth j 
another 12 inches across and IJ inch deep. Towards the S.E. they 
lessen in width and depth. There can be no doubt that the 
striating agent here came from X. W. The height of this place is 
about 25 feet above the sea — the Atlantic — and of a mile distant. 
There is a similar good example of striated rocks about half a mile 
to the west of the above mentioned {Lithograph Xo. 26, Plate X.). 
On road between Grogary (mansion-house of Lady Gordon 
Cathcart) and Loch Skiport (on east coast) there are many striking 
examples of striated rocks and boulders. 
Loch Eport is a remarkably narrow area of the sea on the east 
coast, which runs more than half-way across Xorth Uist. From 
deck of steamboat Convener saw, on both sides of Loch, many 
boulders, resting chiefly on rocky knolls, and many rocks with faces 
smoothed on west sides. 
North Uist. — Loch Maddy^ a sea-loch on east coast. An hour's 
walk for about a mile from the shore, showed Convener that rocks 
here have their smoothest sides facing X.W. {Fifth Report^ p. 22). 
Professor Heddle, in a subsequent year, visited Loch Maddy^ and 
reported that rocks there generally showed smoothings by some 
agent passing over them from the westward. 
He refers also to two islets of trap rock called Maddy More and 
Maddy Beg, which are (as he says) “ porpoise-nosed to the west, and 
