686 MR. F. CHAPMAN ON THE BARGATE BEDS OE SURREY. [Nov. 1 894, 



of Folkestone Sands, with current-bedded strata and clay-galls, are 

 seen ; whilst higher still the Folkestone Sands are coloured variously 

 crimson, brown, yellow, and white. 



Fig. 3. — Thin section of Neocomian limestone, with oolitic grains and 

 shell-fragments, from the depth of 1151' 6" in the well-horing 

 at Richmond, Surrey. For comparison viiih the specimens from 

 Chilworth. x21. 



In the Geol. Survey Memoir on the Weald (p. 122), the succession 

 of the beds in Halfpenny Lane is given as follows : — 



Folkestonk Beds ... Ferruginous sand. 



e -r. f Clayey eand, with large pebbles and small patches of 



I fuller's earth. 

 1' Brownish-grey sand, with ironstone. 



Very coarse, dark sand, consisting of grains of brown 

 i ironstone. 

 Hytiie Beds I Brownish-grey sand. 



j Sand, with Bargate Stone and a few thin layers of 



fuller's earth. Some way lower down, 

 j Ferruginous sands. 

 [ Buff sands, not ferruginous. 



The Bargate strata in this lane, so far as I have been able to 

 correlate them with the above data, commence with the beds 



