Prof. J. Prestwich. 



Table IV.— ARTESIAN 



Column Y. — The sign + indicates that the water overflows at the surface 

 not rise to the surface, in which case the water usually stands in a shaft sunk to 



Column YI. — These numbers give the difference between the temperature of 

 differences between the special depths given in Column IV, for which the rate of i 



II 



Name of place. 



Ill 



Nature of the strata. 



35 

 129 



23© 



231 

 142 

 165 

 210 

 143 



153 



45 

 45a 

 123 

 124 



209 



England. 



Sheerness* 



jj 



Kentish Town, London . . . 



jj n 

 jj jj 



Richmond, Surrey 



JJ jj 



Chiswick 



Southampton 



Newport, Isle of Wight . . 

 Swinderby, Lincoln 



jj jj 



Bootle, Liverpool 



Scotland. 



Carse of Falkirk, Kennet 

 House 



Midlothian, average of 11 

 wells 



Blythswood, nr. Glasgow. . 



jj jj • • 



South Balgray ,, 



France. 



Dunkirk. 



London Clay, Woolwich Sands and 

 Thane t Sands 



London Clay and Sands 325 feet. . . 



Chalk 646 feet. . . 



Upper Greensand and G-ault. 143 feet. . . 

 Bed Sandstones (Devonian?). 188 feetf. . 



Tertiary strata, 

 Oolite 



242, Cretaceous, 898, 



and Bed Sandstones (Devonian ?), 257 



London Clay, Sands, and Chalk 



Tertiary strata, 400, and Chalk, 810f . . 



Tertiary Clays and Sands 



Lias and Bhoetic 140 feet. . . . 



New Bed Sandstone 1259 feet. . . . 



Bermian Marls, &c 372 feet. . . . 



Carboniferous Shales and 

 Limestones 129 feet. . . . 



Trias (Bed Sandstones and Marls) 



Alluvial Beds and Coal-measures. 



>j jj 



Boulder Clay and Coal-measures 

 jj jj j j 



, , and Green stone . . . 



London Clay, Sands, and Chalk. 



