620 
Proceedings of the Royal Society 
It is therefore a fact of considerable importance bearing on any 
theory of transport, that these boulders on Aonach Eagach occupy 
positions much higher in level than any of the hills in a very wide 
extent of country ; so that it is difficult, if not impossible, to adopt 
for them the explanation of any local glacier. 
I have adverted to the peculiar position of the boulders on Meall 
Dearg , where at a height of 3100 feet they lay upon a ridge not 
many times wider than their own bulk, or rather on the sides of that 
ridge facing the E. or U.E. I am not able to offer any satisfactory 
explanation of this feature. I would like again to study the positions 
of these boulders. They must have been brought there by ice, which 
may have come from the N.W., and stuck there among the high 
peaks till it melted, and allowed the boulders to subside on or near 
the top of the ridge. My explorations about Glen Creran led to the 
supposition of a flow of ice through Glen Tarbert on the N.W. side 
of Linnhe Loch. This might possibly also account for the boulders 
on Aonach Eagach. But in that case, where could the parent rocks 
be? 
(Though it does not seem to have any direct bearing upon the 
question, yet it may be well to record the fact that the bed of the 
Cona is, for a short distance, about midway between the little lake 
and the hamlet of Clachach, cut through a rock very similar to, if 
not identical with, that of the boulders.) 
III. NOTES BY WILLIAM JOLLY , Esq. 
On the Carried Boulders on the South Shores of the Moray Firth. 
In answer to your request, I send some notes, supplementary to 
those of last year, on the above subject. 
The Dirriemore Granite seems to be more widely distributed 
towards the east than I anticipated. Since last year, I visited the 
place where I had formerly found it in situ , on the road between 
Dingwall and Ullapool, where it appears in the valley of the Black- 
water, about and below its junction with Strathvaich. None of it 
