Plate IX. 



Hampstead-heath. 



Bagshot Sands 



London Clay 



Woolwich and Reading Scries 

 Thanet Sands 



Upper Chalk with Flints 



Lower Chalk without Flints 



Chalk Marl 

 Upper Greensand 





r-T~r"7' 



^^,id.- 



i2Xii^ 



80 feet. 



4CX) 



60 ,, 

 250 ,, 



340 



60 ,, 

 20 ,, 



Cault. 

 VERTICAL SECTION UNDER IIAMPSTEAD HEATH. 



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



