184-6.] SEDGWICK ON THE SLATE ROCKS OF CUMBERLAND, ETC. 115 



5. MiLLAM, through Duddon Sands to the sea near Ulverston*. 

 N. S. 



Millam. Duddon Sands. Osmotherly. Ulverston. 



>cc If/3 /fj. 



The other section (No. 6) commences with the same limestone, and 

 crosses the sands about two points of the compass farther towards 

 the south, so as to reach the south-east shore on the south side of a 

 great fault or contortion which has repeated the Coniston limestone 

 in High Haume near Dalton. 



6. Millam through Ddddon Sands to Dalton. 

 Millam Park. Duddon Sands. High Haume. Dalton. 



^yc^n^ i^^^ 



The preceding descriptions apply to the group No. 4 (a, /3, y, ^), 

 as developed in Furness ; and the aggregate thickness is very- 

 great — certainly several thousand feet. If the section were pro- 

 longed across Leven Sands, over the hills to Cartmell, it would 

 probably bring in still higher beds. All the accidents of structure 

 are however repeated, and are precisely like those on the Ulverston 

 side of the Sands. Again, it is easy to make a section farther north 

 from the Coniston limestone down Russland to Newby Bridge, and 

 thence as far as Lindal. The lower part of such a section would 

 give the groups 1, 2, 3, 4-, in great perfection and clearness, and 

 would cross three distinct lines of porphyry dykes ; and near Newby 

 Bridge the section would terminate in some part of the group 4 I. 

 This last part of the series has however very few fossils, but in the 

 abstract before referred to I have already mentioned Cardiola in- 

 terrupta. Starting with this section the strike is north-east; at 

 Newby Bridge the strike is various, and the masses are enormously 

 shifted at the intersection of three valleys. The prevailing strike is 

 about N.N.E. or north by east; thence passing over the ridge to 

 Tindal there are perhaps twenty anticlinal and synclinal lines. At 

 Allithwaite the chain is broken, and beyond that village, down to 

 Lindal, the strike becomes north by west or N.N.W. I conceive it 

 therefore almost impossible to connect this end of the section cor- 

 rectly with any section from Coniston down Russland to the foot of 

 Windermere. Still, on the whole, the sections are in the ascending 

 order towards the south-east, and we gradually reach the upper 

 limits of No. 4. 



* It is proper to state that in this and some of the other diagrams illustrating 

 the present memoir, the appearance of a want of conformahility {e.g. hctween 4 /J 

 and 4 y supra) is an error in the engraving. All the beds, from No. 1 to No. 5 iu. 

 elusive, are in fact conformable throughout the district. 



I 2 



