158 
Proceedings of the Royal Society 
Dalmally, was not overlooked. But if any glacier had filled the 
valley to the height of 1330 feet, bringing down boulders, these boul- 
ders would have much more probably been lodged on the hill to the 
north of Cruachan, called Daranish, opposite to Bonawe, where there 
is now a great quarry of granite. But on that hill, at least on the 
side opposite to and looking up towards Loch Awe, only a few 
boulders were discernible. 
On the other hand, if boulders were brought by a N.W. current, 
the part of Cruachan which would be first and chiefly struck would 
be its N.W. shoulder, where the boulders now lie in great heaps, 
whilst that part of Daranish hill, which faces about south by west, 
would be sheltered from the current. 
The following boulders of considerable size indicated by their 
position that they probably had come from the N. W. : — 
One at a height of 1890 feet, resting on gravel, 15x9x5 
feet. 
Another at a height of 1943 feet. It was 13 feet long x 7 feet 
high. Its longer axis bore N. W. by W. At its west end, its width 
was 2 feet, at its east end 5 feet. It also lay on gravel and small 
boulders. 
At a height of 2194 feet, the rocks of the hill — a coarse reddish 
granite — presented extensive smoothings facing W. by N. 
At a height of 2386 feet, there was a boulder 7x6x5 feet, 
evidently blocked on its E.S.E. side by the rock of the hill. 
At a height of 2428 feet, a grey granite boulder was found near a 
summit level, where the rock — a red or yellow felspar — showed 
smoothings from the N.W. 
The hill to which these observations apply was not one of the 
central peaks of Cruachan, but situated to the JST.W. This hill is 
known in Gaelic by a name which in English means “ hill of the 
horse heel.” Its top was not reached by about 100 feet. Boulders 
were, however, descried on it reaching to the very top. 
Descent from this hill was made on the side next to Cruachan, 
i.e., on its S.E. and S. side. No smoothed rocks were observed 
on these sides, and but few boulders. 
If a glacier descended the valley from Loch Awe, grating on 
Cruachan, it is natural to suppose that the rocks on these flanks 
of Cruachan would have shown some smoothings. There is a 
