AFTER M. BARROIS. In Ascending Order. 



517 



Surrey. 



Berkshire 



Bucking- 

 hamshire. 



Cam- 

 bridge- 

 shire. 



Norfolk. 



Yorkshire. 



Ireland. 



Burr Stone 



Merstham 



Grit 

 Woolstone 



Marl 

 Puttenham- 



Cambridge 



Red Chalk 

 Hunstanton 



Red Chalk 

 Speeton 





Firestone 

 Merstham 



Sand 



"Walling-- 



ford 



Sand 

 Buckland 



absent 



absent 



absent 



F. 



Glauconitic 

 Sands 



Chloritic 

 Marl 



Chloritic 

 Marl? 



Grey Marl 



Marl 

 Cambridge- 



Band with 

 Sponges 



Band with 



Sponges 



(Lincolnshire) 



E. 



Grey Marls 

 and 



Grey Chalk 

 Marden 



Chalk 



Compton- 



Beauchamp 



Marl 



West End 



Totternhoe 



stone 



Grey Marl 

 Cherry 

 Hinton 



Banded Chalk 

 Hunstanton 



Chalk with 



Red bands 



Speeton 



Yellow 

 Sandstones 



Yellow Chalk 

 Marden 



Chalk: 



Chalk 



YellowMarl 

 Cherry 

 Hinton 



Grey Marl 

 Hunstanton 



Chalk 





Fpper Marden 

 Park beds 



Chalk 



IJffington- 



Castle 





Chalk con- 

 glomerate 

 Cherry 

 Hinton 



Chalk 

 Shernborne 



Hard Chalk 



withRed bands 



Speeton 





Whiteleaf 

 beds. 



Chalk 

 Streatley 



Chalk 



Chalk 



Fulbourn 



Lodge 



Chalk 

 Sedgeford 



Chalk 

 Hessle 



D. 



Chloritic 

 Sands 



Lower Kenley 

 beds (in part) 



Chalk 

 Bassildon 



Chalk Rock 



Chalk 



Chalk 



Bircham- 



Newton 



Chalk and 

 Grey Flint 

 North Sea 



and 



Sandstones 



Lower Xenley 

 beds (in part) 



Chalk 

 Pangbourn 



Chalk 



Chalk 



Chalk 

 Stanhoe 



Chalk 

 Breil point 



C. 



Chloritic 

 Chalk 



Upper Kenley 

 beds 



Chalk 

 Chase Farm 







Chalk 



Burnham- 



Overy. 



Chalk 



Flamborough 



Head 





Purley beds 



Chalk 

 Reading 







Chalk 

 Wells 



Chalk 

 Bridlington 



B. 



White Chalk 

 with Flint 











Chalk 

 Norwich 





A. 



White Chalk 

 with Flint 



