148 



Mr. W. Wliitaker on some Suriey Wells. 



London Clay 



(continued), 



211i ft. 



Reading Beds, 

 65-1 ft. 



Thanet Sand, 

 10 ft. 



Thickness Depth 

 Very liard dry sandy clay : clay- 

 stone at base, with fragments of 



plant-remains 12J 197^ 



Very hard dry sandy clay, with 



fossils and part of a tree-trunk 



(9 ft. by 2\ in.), much bored by 



Teredo. Thin layer of black 



flint pebbles at the base 16J 214i 



' Very hard dry sandy light-coloured 



mottled clay 



Hard dark somewhat mottled clay 

 Very hard dry sandy mottled 



clay 



Hard mottled clay 



Soft dark mottled clay 



Very hard dry sandy light- 

 coloured mottled clay 



Hard dark mottled clay 



Very hard dry sandy light-coloured 



mottled clay 



Very fine dry sandy light-coloured 



loam 



Fine light-brown sand, slightly 



mottled in parts 



Darker coarser sand, with 2^ in. 



of soft sandstone at top 



Green sand and black sandy loam, 



partly with soft chalk-pebbles 



[concretions?] 1 270^ 



Green sand and black loam, partly 



with flint-pebbles, hard brown 



and light-blue mottled clay, with 



fruits of plants, and brown and 



black laminated clay 1^ 272 



Green and grey sand, and (greater 



part) conglomerate of flint-peb- 

 bles, in sand and loam 3 275 



Green iron-shot sand, with many 



chips of flint, oyster-shells, pieces 



of hard chalk, and fish-teeth (in 



coarse greyish sand). Some 



rounded pieces of li^nestone [con- 

 cretions] at the base 5 280 



(Dark grey dry hard sand, loamy in 

 parts, hard and clayey towards 

 the base 9 289 



Continuous cemented layer of flint, 

 6 to 8 inches, with small flints 

 V under, green-coated, in hard sand 1 200 



