IS Dr. Mac Culloch's Sketch of the 



I have already said that I did not observe in any part of Sky 

 those accumulations of foreign and transported materials which are 

 of such frequent occurrence on the main land of Scotland, and of 

 which I have already noticed a remarkable example in StafFa. The 

 accumulations of matter which it offers in several places are but 

 trifling, and they are evidently derived from the daily action of 

 the rivers, or from the ruin of the exposed rocks. 



Commencing at Loch Slapin a considerable alluvium may be ob- 

 served occupying the head of this Loch and extending up Strath- 

 more, encroaching on the top of the bay, and evidently formed by 

 the waste of the Red hills, with additions comparatively insig- 

 Dlficant from the naked precipices of Blaven. 



As the upper end of Loch Eishort receives no river of note, it 

 presents no alluvial deposit, and no further marks of waste, en- 

 croachment, or alteration of the sea line, are to be observed round 

 the point of Sleat till we reach Loch Oransa. Partial depositions 

 of gravel may be traced from hence round the shore to Kyleaken, 

 where a considerable bank of alluvial matter has been thrown up, 

 apparently from the concurring action of the rapid tides which run 

 through the sound of Sky. Opposite the island of Scalpa a sort of 

 delta has been formed, which bids fair at some future day to unite 

 the two islands into one. The head of the eastern Loch Eynort is 

 also the receptacle of considerable masses of rubbish brought down 

 from the Red hills, a waste sufficiently great to alter the courses of 

 the small streams which run through the narrow vallies separating 

 these hills. Similar, but more extensive, accumulations from the 

 same cause have formed a tract of plain ground at the head of 

 Loch Sligachan, subject to frequent inroads and changes from the 

 still varying course of the stream. The waste of the land which^ 



