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the sea, there occur numerous boulders of a grey granite, which, 
so far as I can make out, is found zz sifu only about Criffel, in the 
south of Scotland. Many of these boulders are of considerable 
size, especially north of Maryport; and some of them are very 
much decomposed, in which state they frequently contain Ver- 
miculite. 
We have now obtained an approximate idea of the courses 
taken by some of the boulders of this district whilst being trans 
ported from their native rock, but there is one very important 
point yet to notice. In examining the boulders in Whicham 
Valley, I found Eskdale and Criffel Granite, Ennerdale Syenite 
and St. Bees Sandstone, as far up the valley as Whicham Hall, 
which is about a mile up from the mouth of the valley. The icy 
stream by which these boulders were borne must therefore have 
made a right-angled turn round the south end of Black Comb, for 
none of them can have come down the valley, as there is no rock 
of any of the kinds mentioned in that direction. The boulder 
current has also been deflected in a similar manner up the Vale of 
Duddon, and also towards the head of Ennerdale, for at the south 
end of that Lake there are numerous boulders of St. Bees- and 
Whitehaven Sandstones, Carboniferous Limestone, various Coal 
‘Measure rocks, and Criffel Granite. These rocks must have been 
carried round the south end of Kelton Fell, as none of them 
occur 7 situ farther up the valley, and the nearest of them any- 
where, is from two to three miles away to the westward. 
Again, in Cogra Valley there has been a similar movement 
up-hill, for we find boulders of Carboniferous Limestone resting on 
Skiddaw Slate, nearly at the top end of the valley. Some of the 
boulders are very large, and many of them are severely glaciated. 
They occur both in tough boulder clay and directly on the bare 
slate. Up the sides of the valley I have found them at an altitude 
of 1100 feet. One, in the mouth of the Wisenholm Valley, at an 
altitude of about eight hundred feet, measures 8‘ x 5‘ x 4\, and 
would weigh about eleven tons. There is no rock of this kind iz 
situ at an altitude anything approaching this nearer than Caldbeck. 
But the most remarkable feature of these boulders is, that they 
