of Edinburgh, Session 1882-83. 
203 
of the hill consists of flattened rock, whose contour shows unmis- 
takably that its form is the result of a body of ice having passed 
over it from the west.” Its eastern end shows marks of having been 
broken ; and some little space eastward from the cliff there is a great 
rugged block, which seems to have been detached from the rocky 
cliff, and pushed a little way eastward. 
3. Excursion from Lidb Railway Station northward, over Beinn 
nan Clach, 2309 feet; Bein nan Imirean, 2500 feet; Bein 
Bias, 3139 feet; Bein Dlieiceach, 3074 feet; then down 
stream-valley, hack to Luib ; — ivith Mr Colin Phillip. 
1. Found the whole south side of Beinn nan Clach from 2000 to 
2100 feet, sprinkled with boulders from 1 to 3 cubic yards in bulk. 
They consisted of a kind of rock differing from that of the hill, 
being more chloritic. 
Found a line of somewhat larger boulders lying along the top 
ridge of the hill, stretching in a line towards Imirean. Found a 
much rounded block about two cubic yards in bulk upon the solid 
rock of the very summit of the hill, at a height of 2309 feet above 
the sea (see fig. 10). The rock of the summit was also much rounded. 
l^oticed also the outcrop of some nearly horizontal strata, with 
scattered dislodged fragments ; suggesting the action of some 
moving body which had been grinding on and rupturing the edges 
of the strata. 
Found blocks at about the same, or rather lower level, in the 
corry between Beinn nan Clach and Beinn Glass, as also at the foot 
of the east slope of Bein Dlieiceach ; but these might have fallen 
from rocky cliffs above them. 
During the two last excursions, looking across Glen Dochart 
southwards, some very large boulders were descried on the IST.E. shoul- 
der of Ben More (3843 feet). They were on a little flat, at about 
from 1750 to 2000 feet up. These could not be “fallen blocks.” 
The ridge on which they rest was too narrow, and the slope too great, 
for falling masses to have been arrested where they lie. Ice seemed 
the more probable agency. 
On a review of the facts observed during the foregoing excursions, 
I cannot explain them by the agency of local glaciers ; nor can I 
conceive how a great solid mantle of ice covering the whole country, 
