Glacier Moraines in Cumberland and Westmorland. 203 



note, "that no one could pass through the Duddon Valley 

 without being struck with the worn and disturbed appear- 

 ance of its rocks and crags, and the immense amount of 

 debris scattered over the hill sides. About Seathwaite the 

 perched blocks are very conspicuous in all directions — some 

 of them can be called huge in size, but when they come 

 against the sky their position gives them a look which 

 arrests attention and makes them appear larger than they 

 really are. They frequently occur in groups, and seem to 

 lie in one main current — along which the glacier had 

 moved and deposited these blocks as they were arrested 

 by the masses of smoothly worn elevated crags on which 

 they now rest." 



Mr. Hull's description will at once explain to a geologist 

 that the groups of perched rocks he describes are probably 

 lateral moraines, and his most interesting sketches are 

 convincing proofs of this — and shew that the glaciers 

 about Seathwaite in the Duddon Valley have been of great 

 size and depth, filling a wide valley to a considerable height 

 up the hill sides. The estuary of the Duddon opens out 

 below Broughton-in-Furness into a wide bay, and supposing, 

 as in the Eskdale valley, that it formerly reached much 

 further inland, and was subject to the action of floe-ice, 

 it would thus receive the moraine debris, and float it away 

 as before described. The granite district of Harter Fells 

 would furnish its contribution of granite boulders, to be 

 mixed with the porphyries and greenstones of Bowfell and 

 the slates of Coniston in the terminal moraines. 



Dr. Buckland held the opinion that the granite boulders 

 of the Shap district had been carried southwards by the 

 agency of glaciers, but there are not the same evidences now 

 to be found about the Shap Fells as those which exist in 

 Eskdale. The granite district at Shap is of a very limited 

 area, comprising only some 800 to 1,000 acres around Wast- 

 dale Pike, about two miles above the Wells House, near 



