Mr. W. Whitaker on some Surrey Wells. 143 



Thickness Depth 



irru *o J n f Green and grey sand 35 208 



[Thanet Sand.] | Green-coated flints and grey sand ... 4 212 



Chalk and flints 139 351 



A shorter version appeared in ' Engineering,' vol. liii. p. 776 

 (24th June, 1892). 



There is doubt as to the above classification. One would 

 expect London Clay, and would be inclined to put this to the 

 depth of 150 feet. It is hard, too, to believe in so great 

 a thickness of River Drift as 94 feet. 



Norwood. Brewery Co., Chapel Road, West Norwood. 1889. 



Made and communicated by the Aqueous Works and Diamond 

 Rock-boring Co. 

 Water-level 133 feet down. Yield, 1400 gallons an hour. 



Thickness Depth 



FT. IN. FT. IN. 



Old well (the rest bored) — — '^1 2 



^Blueclay 153 6 174 6 



( Black pebbles ... 2 3 176 9 



[London Clay.] \ [? Basement- J Oyster-shell rock 6 177 3 

 bed, about 4 ft.] 1 Pebbles and dark 



I i sand 12 178 5 



/Sand 8 186 5 



Blue clay and shells 5 5 19110 



[Woolwich and Brown sand 7 5 ^^^^^ 



Reading Beds, -( Oyster-shell rock 4 8 203 11 



about52ift.] SandandsheUs 19 205 8 



Coloured [mottled] clay 17 10 223 6 



^ Pebbles and sand 7 6 231 



[Thanet Sand, ( Grey sand 33 9 264 9 



38 ft.] JFlints 4 3 269 



Chalk and flints 82 351 



Perhaps the sand at the top of the Woolwich Beds, with the 

 pebbles, &c., classed as basement-bed of the London Clay, may 

 belong to the Blackheath Beds. 



An account communicated by the Company differs much 

 in details (? another well), being as follows : — 



Water-level 211 feet down. Rather a large quantity of iron 

 was found in the water at first, and was attributed to the new 

 pipes that were used. The quantity has lessened since. 



Thickness Depth 



(Brown clay 10 40 



ILondon Clay.] j Blue clay 180 220 



(Pebbles [? Basement-bed] 5 225 



