434: 



ilR. BEEXARD S31ITH OX THE 



[Sept. 191 2, 



ice,^ and escaping water, after passing along a rock-ledge at the 

 south-eastern edge of the lobe, immediately above the 400-foot 

 contour, fell obliquely and rather rapidly along the mountain-side to 

 the 300-foot contour. The head of the notch is almost precipitous, 



and must have 



formed a waterfall, 

 which would ac- 

 count for the hollow 

 occurring just below 

 it. The hollow 

 (partly filled by 

 scree) is boggy, 

 a]]d contains several 

 boulders, which may 

 have been swirled 

 round and round. 

 A 7-foot boulder of 

 Eskdale Granite, at 

 a slightly higher 

 level, has probably 

 rolled down the 

 hillside from above. 

 The water at first 

 escaped by a short 

 oblique channel 

 directed towards 

 the south-west ; but, 

 when this became 

 closed by ice, it cut 

 a short valley run- 

 ning parallel to the 

 hillside, and finally 

 ending blindly in 

 the open. 



The crag, thus 

 isolated, is 40 feet 

 high, and consists 

 of slates riddled by 

 reefs of vein-quartz. 

 Its outer slope when 

 continued upwards 

 with its natural 



curve, corresponds exactly with that of the hill from which it has 



been severed (see fig. 11, p. 433). 



Tarn Dimples is not an ' in-and-out ' valley, but a rather complex 



* out ' vallev, commencins: with a waterfall. 



(h) The Monk-Foss Channels in Drift. — From Fellside 

 ^ Boulder-clay enters the mouth of Holegill (see p. 418). 



