Glacial Problems in Yorkshire and Lincolnshire. 423 



problems which are hivolved and the results already obtained. 

 Attention was first called to the fossiliferous nature o( the 

 deposit by Messrs. Wood and Rome in their paper on the 

 ' Glacial and Postglacial Structure of Lincolnshire and York- 

 shire,' in which they refer to it ' as a portion of the Hessle Clay 

 formation.' Mr. Reid gives a fuller account of the bed in his 

 Survey Memoir on the ' Geology of Holderness ' (p. 58), stating 

 that, though the sand underlying the warp probably rested 

 directly on the chalk, the deposit was an estuarine clay of 

 * Interglacial ' age. Mr. Lamplugh some time later"' made 

 passing reference to the Kirmington section, and suggested 

 that the bed was probably older than any of the Yorkshire 

 Glacial deposits. 



The warp, which is well exposed in the brickyard, is situated 

 on a low hill about 80 feet above sea-level. The upper portion 

 has yielded a few species of estuarine shells, but, as recent 

 investigations have shown, freshwater shells occur in a peaty 

 bed at its base. It is proposed to investigate the fauna and 

 flora of this bed very carefully. 



Below the warp a few feet of sand is exposed in the brick- 

 yard, but until the recent boring was put down there was no 

 information as to the underlying bed. The boring proved 

 a thickness of /_' feet of stiff purple clay, with foreign stones, 

 evidently a Glacial clay, and then 1 1 feet of silt, sand, and fine 

 chalk rubble, below which it was impracticable to carry the 

 boring without tubing the hole, for which the appliances were 

 not at hand. 



As boulder clay is seen at one corner of the pit to overlie 

 the fossiliferous warp, there seems no doubt that the bed lies 

 between two Glacial deposits, but it is highly desirable that the 

 section should be carried downward to the chalk. 



Thanks are due to Mr. J. Villiers, of Beverley, who very 

 kindlv put the boring down at his own cost ; also to the Earl of 

 Yarborough (landlord), Mr. Harvey (tenant), and Mr. B. P. 

 Hankey (agent). 



The Committee was reappointed, with a grant of ;^5o. In 

 addition to the Kirmington section, the deposits at Bielbecks, 

 Fulford, and Sewerby are also to be investigated. 



J. W. S. 



* Quart. Journ. Geol. Soc, Vol. 47, i8gi, pp. 384-431. 

 1903 November i. 



