Machintosh—On the Lake- district. 305 
may be explained by supposing that the assumed current must have 
become very irregular, or in some places reversed, in the direction 
of its action, by. the time it reached Borrowdale, Gatesgarth, or 
Wastdale. 
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The Pillar Rock, Ennerdale. (From a Sketch by Mr. Whitehead.) 
The Pillar Rock.—As this apparently old sea-coast rock is scarcely 
noticed in guide-books, and its situation misstated in a costly work 
on the Lake-country lately published, perhaps some account of it 
may not be unacceptable to the readers of this Magazine. It is 
situated in Ennerdale, about two-thirds of the way up the side of 
the Pillar-mountain. Professor Sedgwick, many years ago, de- 
scribed the geological structure of Ennerdale, along with other 
parts of the Lake-district, with an accuracy which has bidden de- 
fiance to all attempts at revision or modification. Syenite may 
be seen at the base of the Pillar-mountain, and the rocks above have 
been so much altered by metamorphism, if not indeed originally 
volcanic, as to render it very puzzling to give a definite name to any 
particular specimen.* The crags on the side of this mountain have 
* In a kind note lately received from Professor Sedgwick, that venerable geo- 
logist, so far as he can now recollect, would call the Pillar Rock a mass of fine 
VOL. II.—NO. XIII. xX 
