of Edinburgh, Session 1881 - 82 . 
771 
The other boulder was of gneiss, laminated and convoluted in 
structure ; — much resembling rocks in situ in the district of Loch 
Earn and Glen Ealloch. 
4. Walked in the Lewis from Stornoway to Tarbert, in Harris. 
The north part of the district, where not covered with peat, consists 
of glaciated rock, with ill-defined striae running in almost every 
direction except H. and S. The general flatness is the more 
remarkable as the strata are nearly vertical, so that their edges have 
been ground down by some agent passing over them. 
This flat district of course terminated on the south at the base 
of the Harris Hills. One or two of these reach a height of about 
2600 feet, and glaciers were no doubt formed in some of their 
valleys ; but the levelling of the district to the north cannot be 
attributed to them. 
The trench between the two Lochs Tarbert, where, in the previous 
year’s Report, boulders were reported to have been seen, was again 
visited. There is evidence here of two independent glaciations. 
“ In the main trench, there is evidence of ice rising on the hill sides 
to a great height, as if squeezed up, when moving through the pass 
from the west.” In Glen Skeaudle, again, which joins the main 
valley at an obtuse angle, there is evidence of a small glacier, which 
pressed seaward to the west. 
5. Morvern . — Walked for about ten days over the hills on the 
Glen Sanda property. 
The shores of Loch Corry are much glaciated on both sides — in 
the same direction, namely towards the east. 
A knoll or boss of red granite at the mouth of the loch attracts 
notice, from the way in which, on its W.bT.W. side, the rocks on a 
slope reaching up to 150 feet were all rounded, smoothed, and 
scratched. The opposite, or S.E. side of the knoll, was rough and 
craggy. 
On the north shore of Loch Corry, near its mouth, an angular 
block 27 x 27 x 10 to 13 feet was observed; about 28 yards from 
it, a hollow in the rocks was discovered, which, in dimensions and 
shape, exactly fitted the boulder; this hollow was situated N.W. of 
the boulder. The boulder was about a foot lower in level than the 
hollow it came out from. A thick mass of floating ice was probably 
the transporting agent. 
VOL. xi, 4 n 
