256 Bernard Smith — Green Keuper Bmement Bed's 



poorly represented, and beds of marl so well developed, that it was 

 found almost impossible to define where the marls passed into Water- 

 stones. A division was made, however, upon other evidence. The 

 Bunter Sandstone was of the usual type for the district, and contained 

 pebbles as high up as the first 8 or 10 feet. 



Details of the Lincoln (Boultham) boring for water were kindly 

 supplied me by Mr. Henry Preston, F.G.S. The interpretation of 

 this section becomes clear if we bear in mind the character of the 



