of Edinburgh, Session 1883-84. 
811 
110 feet above sea. Most of these knolls present hare rock on west 
sides, and have boulders on those sides. On one of the knolls a 
boulder 10 x 6 x 6 feet, very near its top — a light coloured gneiss. 
Hock of knoll also gneiss, but dark coloured. 
Another rocky knoll, about a mile to N.E. of last, has on it a 
number of large boulders called “ The Giant's Pebbles f in reference 
to a legend that they were thrown by giants from Barra, an 
island N.W. of Tiree, and distant about 40 miles. There are here 
from twenty to thirty boulders of all sizes, almost all on the knoll, 
and none on the adjoining fiat land. Suggestion offered, that knoll 
had intercepted the raft which carried the boulders. 
(3) Ben Gott Hill forms a rocky ridge running N. and S. about 
120 to 130 feet above sea. A very large number of boulders chiefly 
on its N.W. flanks. Some are on S.E. flanks, possibly pushed over 
ridge. On flat ground S.E. of ridge, boulders are few in number. 
(4) Great beds of sand and shingle in different parts of island, 
showing that sea had prevailed over it at a comparatively recent 
period, to a height exceeding 40 feet above present sea-level. 
7. Coll . — Visited Bein Hoch; hill on west side of island, reaching 
to 290 feet above sea. There are two boulders at top : — one near the 
summit which slopes down towards l^.W., the other on a flat 
which forms summit of hill [Lithogra/ph No. 17, Plate IX.). 
Near foot of hill, on its N.W. side, there is a rocky plateau 
abutting against it, at a height of 80 feet above sea. On this low 
hill there is a large boulder 16 x 20 x 13 feet (308 tons). 
All these boulders are a coarse granite, passing sometimes into 
dark coloured gneiss. Eock of hill is gneiss. 
The sea (viz., Atlantic) is towards west and north, distant about 
half a mile. 
There can hardly be no doubt, that these boulders were brought 
here across the sea. 
(2) At Grassi]pol an immense accumulation of houlders in a 
meadow, which has a range of vertical rocks on its S.E. side {Litho- 
graph No. 18, Plate IX.). These boulders seem to have been inter- 
cepted in their farther progress by the rocks on S.E.. Sea is about 
three-quarters of a mile distant to N.W. One of the boulders is 30 
feet high. 
On west side of this meadow, a rocky knoll covered by boulders, 
3 H 
VOL. XII. 
