1 30 Sheppard : Geology of Brough, East Yorkshire. 



planorbis. This of course indicates the presence of the very 

 lowest beds of the Lias, and the Rhcetics should not be far 

 away ; in fact, a section in the floor of the pit might reasonably 

 be expected to reveal the characteristic tea-green shales of that 

 series. I have occasionally had a dig - down, but apparently 

 have not gone deep enough, as I have found no trace of them. 

 The appearance of this first section is very striking. It is made 

 in the steep slope of the escarpment, and the thin beds of hard 



Contortions in the Lower Lias at Shepherd's Well, near North Cave. 



blue fossiliferous limestone stand boldly out from the inter- 

 vening soft shales. In these latter are large quantities of 

 crystals of selenite. 



Banked up against the escarpment are some blown sands 

 which have been derived from the Trias of the V ale of York. 

 Rabbits and moles burrow freely into this material, and in a pile 

 of earth thrown up by one of the latter I recently found a flint 

 implement ; this being a district in which I had not previously 

 met with them. 



A little to the north is a similar though smaller section, also 

 in a field a short distance from the road. Though fossils are 



Naturalist, 



