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PEOCEEDINGS OF THE GEOLOGICAL SOCIETY. [Apr. 24, 



development of gravels to the westward, to incline me to believe that 

 these beds are to be referred to the upper part of the Boulder-clay. 

 The shells are all of recent species, and 33 out of the 40 are still 

 found on the Yorkshire coast. Nevertheless the presence of such 

 species as the Natica clausa, N. Grcenlandica, Trophon Gunneri, T. 

 scalariforme, Mangelia pyramidalis, and Littorina sqiialida, which 

 have a wide northern and Arctic range, indicates colder conditions 

 than those now prevailing on these shores, and more in accordance 

 with what we know of the fauna of this portion of the Post-plio- 

 cene series. 



I have extended this communication to greater length than I in- 

 tended, my object having been to make known a very remarkable 

 locality well deserving of further research, and which has an im- 

 portant bearing upon some questions still under discussion. I reserve 

 the more theoretical questions connected with the origin and cor- 

 relation of the strata to a future more general inquiry. 



P.S. I annex a series of sections sent me by Mr. Smith, of borings 

 along the line of railway from Hull to the sea at Withernsea, and 

 passing through Kelsey Hill, which is situated between Sections 

 3 and 4. 



Sections at the stations along tlie Holderness Railway. 



1. Mar fled, 1\ miles from Hull. 



Feet, 



Warp 30 



Salt water sprang from " rotten 

 stuff." 



2. Hedon Station, b\ miles from Hull. 



Brick clay 6 



Grey marl with stones 24 



On to a bed of sand from wliich 

 water sprang. 



3. Burstwick Station, 7f miles from 



Hull. 



Brick clay 7 



Strong marl w^ith " iron-stone " ... 29 



Strong niarl with stones 40 



Ked sand giving sufficient water. 



4. Keyingham Station, 9£ miles from 

 Hull. 



Strong clay 12 



Marl with stones 3 



Sand-bed with sufficient quantity 

 of water. 



5. Ottringham, 1 1 miles where the Ot- 

 tringham road crosses the railway. 



Feet, 



Bored through 30 



Strong marl with stones; not 

 finding water, was given up. 



6. Winestead Gate-house, 13£ miles. 



Warp '. 30 



Strong red marl 5 



Marl with stones 30 



Dirty sand containing water. 



7. Patrington Station, 14 miles. 



Strong red marl 30 



Grey marl with stones 15 



Sand with water. 



8. Withernsea Station. 



Clay marl 15 



Gravel and sand 5 



Strong marl with stones 60 



Grey sand and shells 2 



Found water. 



At the railway-stations, only small supplies of water are required. 



