878 
Proceedings of the Boyal Society 
hill-tops, which give no evidence of glaciation, they are often scat- 
tered abundantly over the surface of high ground which has been 
glacially abraded. This is well seen upon the ridge between Grdth 
and Skeelfiork, where isolated erratics are sprinkled about upon the 
moutonnee surface ” (p. 250). In the same paper, Dr Geikie else- 
where repeats that “ the large erratics scattered over hill-tops and 
hill-sides were doubtless deposited by the mer de glace during its 
final dissolution” (p. 262), 
II. Rock Stride. 
In the year 1812 Faroe was visited by Sir George Mackenzie 
and Mr Allan, both Fellows of the Edinburgh Royal Society, and 
both of them well-versed in geological inquiries. Both of them 
read to the Society accounts of their visit. Sir George, in his 
paper, expressed much satisfaction in having induced Mr Allan to 
be his companion, on account of “ his great experience in geological 
examinations” {Edin. Roy. Soc. Trans.^ vol. vik p. 215). 
Mr Allan, in his paper, refers more than once to a “ headland near 
the village of Eide, which (he says) presents a perpendicular front 
to the ocean.” So much interested was he in this “headland,” 
that he attempted to measure its height, and found it to be 1134 
feet (page 242). 
In a subsequent passage, he again alludes to this “headland” as 
a thing “of interest,” on account of the “ remarkable , instance (it 
presented) of the abrasion of its surface, where the rock appears to 
have been worn down by the friction of heavy bodies ” (p. 244). 
Then remarking that generally in Earoe, where the rocks do “not 
consist of impracticable cliffs, they present a solid, smooth surface, 
always highly inclined,” he goes on to say, “ it would be curious 
to investigate whether this smoothness on the sides of the mountains 
could be traced to any external cause, such as that which has been 
observed by Sir James Hall on Corstorphine Hill and other parts of 
the country, indicating the passage of heavy bodies along the sur- 
face, Hear Eide I observed a very remarkable example of this 
description. There the rock was scooped and scratched in a very 
wonderful degree, not only on the horizontal surface, but also on a 
vertical one, of 30 to 40 feet high, which had been opposed to the 
