GEOLOGY OF THE BRISTOL COAL-riELD. 27l 



12. — 14 10 Sandy Marls and fissile Sandstone. 

 Shingle of Beach. 



"With the exception of this fish hed, there is a marked absence 

 of fossils in the Devonian beds of this neighbourhood. From the 

 promising aspect of the beds between Sea Mills and Cook's Folly, 

 it is probable that they would reward a diligent search with a 

 longer list of specimens. 



In what are termed the upper Devonian beds, as seen at Mar- 

 wood, Pilton, and Baggy Point, fossils are very numerous, but as 

 the author thinks the balance of evidence is in favour of their 

 being Carboniferous, and not Devonian, and as the chief locality 

 is on the banks of the Avon, their consideration will be deferred 

 until the next lecture. 



Below Sea Mills the beds have been much disturbed and broken. 

 These rlianges may be seen in the railway cutting at Hungroad, 

 when till' rihysical characters may be well studied. One remark- 

 able instance of false bedding is shewn in fig. 12. 



