296 



CONCLUDING OBSERVATIONS. 



eastern part of Sussex, this deposit only constitutes a ridge of inconsider- 

 able elevation. 



Intermediate between the hills of the green sand and the chalk, is 

 another valley, fomied by the outcrops of the grey and blue chalk marl. 



The annexed diagram and section, although possessing no preten- 

 sion to accuracy of detail, wiU serve to render this description more in- 

 teUigible. 



The figures both in the plan and section, refer to the same deposits; 

 the section is in the direction of a hne drawn from the south of Sussex, to 

 the north of Kent. 



Explanation of the Plan, and Section. 

 1. Tertiary formations ; Plastic clay of Newhaven. 



