638 D. MILNE HOME ON THE PARALLEL ROADS OF LOCHABER. 
surfaces facing the west, indicating a movement also over them from that 
quarter. 
Mr Jamigson (“ Lond. Geol. Soc. J.,” 26th Feb. 1862, p. 176), had observed 
the appearances in Glen Roy now referred to, and admits his perplexity with 
reference to their bearing on his glacier views. He says, “I was not a little 
surprised, to find it quite apparent, that the ice had come from the south-west up 
Glen Roy, and gone out in a stream towards the wide valley of the Spey.” He 
also admits having, in the same part of Glen Roy, discovered other rocks, 
“so blunted and rubbed on their south-west exposure, as plainly to show that 
the movement came from that quarter.” 
In Glen Gluoy above Altnaharry Farm-House, at a height of about 1300 
feet above the sea, there are rocks presenting vertical faces towards the north- 
west, from 30 to 40 feet in height. These faces have evidently been smoothed 
by some agent moving past them from the west, the faces fronting that quarter 
being smooth, and the faces fronting the east, rough. If the sea stood at a 
height of say 3000 above its present level, there would be a passage several 
hundred feet deep at the head of Glen Gluoy towards Strath Spey. 
On the hill between Glen Fintec and Glen Gluoy, at a height of about 1700 
feet above the sea, a rock there is smoothed and striated,—the strize running 
about W. by N. No glacier coming down either of these Glens could have 
touched this rock. It was acted on by some agent which came from an opposite 
direction. 
In connection with these facts, reference may be made to observations by 
Mr JAmreson on the direction of striz on the hills lying between the mouths 
of Glen Spean and Glen Gluoy. He says, on the ridge between these Glens 
(called Strone-y-Var), he found that the rock-surfaces indicated a “ pressure of 
ice from the west.” 
“ At an elevation of 800 or 900 feet, glacial scoring occurs, pointing W. 5° N.; a little lower, 
W. 20° N., running not horizontally but up and down the slope, as if by ice mounting from 
Loch Lochy. Again W. 26° N., W. 45° N., W. 15° N., and W. 45° N. The western sides of 
the rocks being most worn, showed that the action had come from that side, and not down the 
Spean Valley.” “Ata place called Brackletter, on the south side of the River Spean, near its 
junction with the Lochy, glacial scores point due west, but still inclining a little to the north.” 
(“ Lond. Geol. Soc. Journ.,” 21st Jany. 1863, p. 246.) 
At the mouth of Corry N’Eoin, I found several places where there were 
rocks smoothed and striated. Thus at one place, the surface of a smoothed 
rock sloped down to N. 4 W. at angle of 42°. The direction of the striae upon 
this rock was N.N.W. Some of the striae were 2 to 3 feet in length. From 
this place the projecting shoulder of the mountain called Aonach More, situ- 
ated 2 or 3 miles to the west, bore W.N.W., so that it would not intercept any 
agent moving or floating towards the striated rock. 

