648 D. MILNE HOME ON THE PARALLEL ROADS OF LOCHABER. 
37d. That the direction in which this current flowed over this part of Scot- 
land was from the W.N.W. (magnetic), judging by the transport of the gravel 
and boulders, and also by the markings on the hills and rocks; but that this 
direction was modified by the hill ranges and submarine valleys over or 
through which the current passed. 
AP) PEN Ds 
The statements in the text as to the existence of a sea with floating ice, in which a current from 
the N.W. prevailed, receives remarkable confirmation from the direction of the striations on the hills of 
Ross and Argyleshires, as observed by the late Ropert CHampurs. In a paper read by him before this 
Society, in December 1852, he gives the following observations as made by himself ;— 
1. On Cuineag and Canish hills (in Ross-shire) at a height of from 1700 to 1800 feet, the striations 
run about N. 60° W. 
To this general rule there are certain exceptions, caused, as Dr CuamBers shows, by the contour of 
the hills. 
- 2. On a summit running S. from Ben More, fully 1500 feet high, four or five miles S.E. of 
Cuineag, there are streakings on the quartz, observing the normal direction, viz., about N. 60° W. 
3. On the Gneissic platform, between Coal More and Suilvean, there are polished surfaces striated 
between N.W. and W. To the west and north of the latter mountain there are similar markings. 
These are situations where, in Dr Campers’ opinion, no local glaciers could have existed. 
4. Streaking, precisely the same, exists at an elevation of at least 2000 feet on the quartz mountain 
named Ben Eay, south of Loch Maree. 
5. On free ground, between Gairloch and Poolewe, there is similar marking with a direction from 
W.N.W. 
6. So also is there, in the great elevated valley of passage across the island in Ross-shire, the 
Derry More. 
7. North at Rhiconnish, there are tsrize coming in from the coast, viz., from the north-west, and 
passing across a high moor, with no regard whatever to the inequalities of the ground. 
8. A little further north, at Loch Laxford, a fine surface is marked with striation from the N.W., 
being across the valley in which vt occurs. 
9, At an opening in the bold gneissic coast which looks out upon the Pentland Firth, there is 
strong marking from N.N.W. 
10. The hieh desolate track called Moen, between Loch Eribol and Tongue Bay, where there is 
nothing that eould restrain or guide the movement of the ice, exhibits striation from N. 28° W. 
11. Strie N. 25° W. occur four miles to the east of Tongue Bay. 
12. In Caithness there are traces of striation from points between N. and N.W., being directly 
transverse to a, line drawn from the neighbouring hills. 
13. In the Island of Kerrera, opposite Oban, and in Mull, striations are noticed pointing N. 60° W. 
In all the above cases, the agent which produced the striations, came, in the opinion of CHAMBERS, 
not from the hills in the interior of the country, but from seaward. 
Mr J. F. Campzewu of Islay, in a paper read by him in the London Geological Society (25th June 
1873), mentions that the perched boulders on the hills of Tiree and Barra, as well as the striations of 
the rocks in these islands, indicate transport from the N.W. and N.N.W. He suggested an Arctic 
current from Greenland. 
Dr Bryor, LL.D., and Mr Jouzy, Inverness, have given similar testimony as to the direction of the 
agents which smoothed the rocks on the Long Island,—viz., that they came from the west, and not 
from the mainland of Scotland. 

