THE SOUTHERN PORTION OP THE WEALD EN" AREA. 639 



stratification, and often penetrating the Lower Greensand in huge 

 pockets. The diagram (fig. 1) shows an upper and lower bed of 



Fig. 1. — Section on Fittleworth Common. 



B 



D. Angular gravel. B. Angular gravel. 



0. Loam. A. Mounds of rubbish. 



angular gravel, separated by an irregular bed of sandy loam con- 

 taining no flints. This gravel continues past Lee Farm to the river 

 Arun, at Stopham ; but on the left bank of the river not a flint is to 

 be seen in the section at Stopham Bridge, where a distinctly bedded 

 river-gravel occurs, containing only Lower Greensand and Wealden 

 detritus. Thus, while the Eother has brought down an abundance 

 of angular flints, the Arun, emerging from the Lower Greensand 

 defile, has accumulated only such detritus as is furnished by the 

 Lower Cretaceous and Wealden strata (see fig. 2). 



Fig. 2. — Section at Stopham Bridge. 



D. Angular fragments. 



C. Loam, with no stones. 



B. Pebbles (waterworn). 



A. Pebbles, with large masses of ironstone. 



Following the main stream down towards the chalk gorge at 

 Houghton, a good coating of gravel is found on the isolated hill at 

 Timberley, at a height of 57 feet above sea-level. In the railway- 

 cutting here 5 feet of angular and subangular flint gravel is seen, 



