Pig. 1. — Diagram showing the Section of Chalk seen in the Cliff over 

 the western entrance of Shakespeare^ s Cliff Tunnel, (Scale 

 30 feet to 1 inch.) 



fk ^.A^n^ fhf. ^.yVi-v A A /i 



Zone of Terebratulina\ 

 gracilis 



Zone of Rhynchonella 

 Cuvieri 





1st line 

 of flints, j 



Marly 



^ald ^ ^^^^'^^ ^^*® ^^^^^• 



Marl 

 band. 



Marly- 

 veins. 



Hardish chalk, with nodules ar- 

 ranged in more or less definite 

 beds. 



The Grit-bed of Mr. Price, = 

 Melbourn! Eock of Cambs, 

 Herts, &c, J 



Yellowish chalk, zone of Belem- 

 nitella plena. 



Lower Chalk, zone of Holaster 

 subglobosus. 



