254 MR. E. W. BINNEY ON THE PERMUN BEDS 



the limestone can be seen in contact with it. The deposit 

 is succeeded on the rise by the upper new red sandstone, dip- 

 ping, when next seen, to the south-east, and on the deep 

 some coal shales make their appearance for a short distance. 

 Then comes the mountain limestone of Urswick. Nothing 

 has been seen by me of the conglomerate and lower new red 

 sandstone. No fossils have, to my knowledge, been met 

 with in the limestone; but cavities occur in it having the 

 shape of casts of Bakevellia and Schizodus. 



By the kindness of my friend Mr. James Gibb, chemist, I 

 am enabled to give the following analysis of a part of the 

 upper portion of the Holebeck stone. It is as follows : — 



Carbonic acid 38.40 



Silica 11.65 



Magnesia 8.95 



Oxide of iron 9.45 



Lime 29.80 



Water 1.75 



100.00 



The coal-measures seen on the deep of the limestone ap- 

 pear to belong to the middle coal-field. They contain shells 

 like the Unio acutus, fish scales, and remarkably large curls, 

 or coralloid cones as they are sometimes termed, in a bed of 

 poor clay ironstone. 



Barrow Mouth Section. 



N.N.E. S.S.W. 



South of North of 



Whitehaven St. Bee's Head 



From Stank across the Duddon, round by Black Coomb, 

 and thence by Ravenglass and Drigg to St. Bees, the upper 

 new red sandstone appears to underlie the country. Between 

 St. Bees' Head and Whitehaven, at Barrow Mouth, a most 



