10 



ME. W. WHITAKEE OX THE 



[vol. lxxv, 



fairly even, were vertical, so that their formation is all the more- 

 difficult to explain. 



The whole set of beds seen in the various pits in the outlier is. 

 as follows. All occur in the parts of the pit above described that 

 are still to be seen, and all but the surface-layer fill the pipes in 

 the Chalk :— 



Soil and an irregular surface -layer of flints, etc. 



( (5) Well-rolled flint-pebbles, in a more or less sandy matrix ;. 

 sometimes hardened into a massive brown or crimson conglo- 

 \ merate. 

 | (4) Fine sand, usually light-coloured ; but sometimes hardened. 



into a brown iron-sandstone. 

 f(3) Brown and reddish loam and clay, with unworn flints:. 

 J sometimes with flint-pebbles from the overlying beds ; some- 

 | times with streaks of grey. Up to a few feet in thickness. 

 [ (2) Grey clay, a thin layer, up to more than a foot in thickness. 

 Upper Chalk. (1) Mostly firm, jointed, with flints. A marked, hard, cream- 

 coloured layer, neither top nor bottom well-marked, which 

 reached a thickness of about 2 feet near the bottom : this, 

 as well as the flints, had but a slight dip. 



Diagrammatic section of pipes at Worms Heath. 



„ ~ r . ° c c ^■' J f =Sr 



Blackheath 

 Beds. 



Clat- 



WITH- 



Flints. 



