814 
Proceedings of the Royal Society 
is given on p. 67 of tlie Eeport, from which it appears that the 
materials were gravel and earth, with sea shells. The boulder was 
evidently not lying on rock. 
The supposition of the Convener was, that when brought to its 
present site it fell on what was then sea-bottom. The site of the 
boulder is now 230 feet above sea. 
A plan is given in the Eeport, to assist consideration of the 
question, from what direction the boulder probably came to its 
present site ; — the result of the Convener’s consideration being that 
it must have come either from the N.W. or the IST.E., there being 
open sea only in these two directions. 
About 100 yards to the west of the Big Boidder^’ there 
is a rocky isolated knoll, about 255 feet above the sea, 
clustered with boulders. These are lying partly on rock, partly on 
shelly gravel, and chiefly on the N.W. side of the knoll. On a 
study of the positions of the boulders on this knoll, it appeared to 
Convener that the uppermost boulders to get into their positions must 
have come from N.W. point. 
About 200 yards N.E. of Big Boulder there is a boulder 
lying on a smoothed rock surface, which dips due north on an angle 
of 20"". This boulder is 5 x 4 x 2 feet. It could not have obtained 
and retained its position unless by having been brought from the 
north. 
About 300 yards to S.E. of “ Big Boidder ” there is a boulder 
8x6x3 feet, at height of 228 feet above sea. The boulder at its 
east end presses closely on rock which has prevented it moving 
further in an easterly direction [Lithograph No. 21, Plate IX.). 
On N.W. of Ben Erival, where its sides slope down steeply to the 
sea, there are numerous boulders, many of which press against the 
rocks of the hill in such a manner as to show that they must have 
come there from some point between west and north. They are at 
various heights from 400 to 500 feet above sea, which is here the 
Atlantic. 
Ben More is a hill on Eoligarry Earm. Its west end forms a 
steepish sea-cliff rising to a height of 330 feet above sea. Half- 
way up this sea-cliff there is a boulder, 20 x 10x5 feet, resting on 
the rocky surface, which here dips W.S.W. But the rock, judging 
by the marks on it, has been smoothed by something passing over it 
