768 
Proceedings of the Royal Society 
5. In Coire-PMhiulinn, farther round the shoulder of Glas Chreag, 
there is a large angular block 8 x 6| x 5 feet. The rock is mica 
schist, indurated and thick bedded. It rests on native rock — mica 
schist also, but much softer and more fissile. Eock identical with 
it is found at the head of Coire Riabhach , which looks in to Glen 
Nevis. 
6. Another feature of the locality is that while there are few or 
no boulders on the W. side of Meall a ’ Chaoruinn * they are very 
numerous on the E. side, which is open to Glen Nevis through the 
glen of the Eiasgaig. 
Another large boulder of indurated micaceous schist occurs at the 
foot of Meall an-t-Snidhe , on the opposite side of Glen Nevis near its 
mouth. 
7. On the east side of the streams forming the Eiasgaig, at an 
elevation of 600 feet and under, there are boulders of the following 
sizes : grey granite 8x6x3 feet, two granite boulders with pinkish 
felspar 15x9x9 feet and 10x6x5 feet, and smaller ones. They 
may have come from Glen Nevis , or Glen More. 
8. Mr. Livingston, under the head of “ General Conclusions, ” 
suggests that the boulders mentioned by him may have come by two 
glaciers, one descending Glen Nevis, the other Glen Spean and Glen 
More. 
(1) With regard to the former, Mr. Livingston observes that from 
the confined nature of Glen Nevis in its upper part, and the height 
of the mountains enclosing it, the glacier would probably be of great 
depth, reaching to a high level. After passing the spur of Ben Nevis, 
opposite Achriabhach, the lower portion would turn to the right, but 
the upper and much larger portion would continue straight on, 
through Glen Riasgaig towards Linnhe Loch. Hence (he says) the 
accumulation of boulders upon Blar nan Gleireach. 
As the boulders on Meall nan Gleireach are at a height of 1630 
feet, Clack a Sgrogaidh at 1790, and strice at 1930, the glacier must 
have reached at least 2000 feet. 
Mr. Li vingston observes that a portion of the Glen More glacier may 
the ten boulders oil the surface of detrital matter , seems rather to suggest the 
agency of water and floating ice. 
* This name means “ Hill of Roivan trees;" though there are none there 
now. 
