876 
Proceedmgs of the Boyal Society 
occurs. At an opening in the bold gneissic coast, which looks out 
upon the Pentland Firth, there is strong marking in a direction from 
N.iNr.'Vy. The high desolate tract between Loch Eribol and Tongue 
Bay, where there is nothing tlicd could restrain or guide the move- 
ment of the ice, exhibits striations from N. 28° W. Strise in 
nearly the same direction, viz., N. 25° W., occur 4 miles to the east 
of Tongue. On perfectly free ground, at Armadale, the markings 
point almost directly from the north. When we pass on to Caithness 
we find traces of striation, still from points hetAveen N. and N.W., 
which is directly transverse to a line pointing to the neighbouring 
hills” {Fifth Pegort, p. 62). 
The late Professor Mcol observes that, on the whole N.W. coast, 
from Cape Wrath southwards, numerous ‘perched’ boulders occur 
on summits and sides of hills, in most exposed situations. They are 
especially numerous around Loch Maree” {First Report, p. 51). 
In another paper {Brit. Assoc. Reports for 1855, p. 89) the Pro- 
fessor states that “on the west coast of Sutherland, near Loch 
Laxford, enormous blocks are perched on the top of rounded bosses, 
or on the very verge of precipices. As the slightest impulse seems 
sufficient to dislodge these boulders, the manner in which they were 
placed in their present positions is very problematical.” 
It is matter of regret that no reports came to the Committee re- 
garding the boulders on the N.W. and H. coasts of Sutherlandshire, 
though frequent applications for them were made. For want of 
reports it has been thought right to refer to the foregoing observa- 
tions by Dr Chambers and Professor ISTicol. 
Clyne. — Pemarkable kaims, apparently moraines, lateral and 
terminal, in Brora valley. At Clynlish quarry the sandstone rocks 
striated in a direction from W. by N. to N.W. {First Report, p. 51). 
Wigtownshire. 
G lasserto7i.— boulder, 9x6x6 feet, weighing about 24 
tons. Longer axis N.E. and S.W. Two other boulders in a line 
with it. These supposed to have come from mountains to IST.E., 
crossing an arm of the sea. 
Several kaims in the parish, full of granite pebbles {First Report, 
p. 38). 
