116 MR. E. W. BINNEY ON THE PERMIAN AND 



feet to occur under such limestone. What is the age of 

 this shale I have no means of determining ; but^ from the 

 old attempts near the place to sink for coal, most probably 

 they will be found to be of Carboniferous age. If this be 

 so, it proves the absence of the Robshaw Point sandstone 

 there. 



Section from Fleetwood to Roach Bridge^. 



Distance, 25 miles. 

 M ?/ S E 



In running over the country from the Irish Sea near 

 Fleetwood to the millstone-grit hills near Hoghton^ very 

 little evidence of the underlying rocks can be obtained, 

 owing to the thick covering of drift which envelopes the 

 district between the first-named place and Preston. Here 

 the river Ribble has excavated through the beds of drift_, 

 so as to expose some of the underlying strata. At Fleet- 

 wood, by the bore lately made there by Her Majesty^s 

 Government in their search for water, 409 feet of Keuper 

 marls were penetrated. Further eastward at Poulton 

 Breck many years since, in a bore made for coal, the same 

 strata, with the overlying drift-deposits, were penetrated 

 537 feet. About Kirkham I am not aware what Triassic 

 beds have been met with ; but I should suppose the upper 

 portions of the Bunter would be found on going through 

 the drift, and that these strata extend to Preston, where, 

 in the bed of the Bibble, a little above the East Lancashire 



* In this and the following sections illustrating the present memoir, the 

 references will be the foUowiag : — 



q, . J 7. Upper Ked Marls and Waterstones. 



-^^^^® \6. Upper New Eed Sandstone, Bunter. 



(5. Red Marls, with gypsum and conglomerate. 

 4. Lower New Eed Sandstone. At Eoach Bridge 

 it contains a bed of fine conglomerate. 



^ , .p r i' Lower Coal-measures. 



(Jarboniierous < ,, n/r j. • i- ^ 



L i" Mountam-limestone series. 



