Plate IX. 



Hampstead-heath. 



Bagshot Sands 



London Clay 



Woolwich and Reading Series 

 Thanet Sands 



Upper Chalk with Flints 



Lower Chalk without Flints 



Chalk Marl 

 Upper Greensand 



•'r- 



^:^^:^^' 







TIIZSIZ 



j^Xu 



T±f^. 



Gault. 



80 feet. 



400 



60 ,, 

 30 „ 



250 



340 



60 „ 



20 ,, 



VERTICAL SECTION UNDER HAMPSTEAD HEATH. 



(Showing the formations from th^ Surface to the Gault.) 



