Surrey Wells and their Teachings. 



6B 



Pockilitic beds. 



With dips 



(? false-bedding) 



from 21° to 45°, 



207i ft. 



Alternations of red sandstone and variegated 



marls 16 



Hard sandstone 1 



Marls, with occasional beds of sandstone ... 10 



Alternations of sandstone and marls 21 



Solid sandstone 4 



Red marls 2 6 



Hard sandstone 4 6 



Soft sandstone, with many seams of marl ... 5 

 Hard red and white sandstone, partly coarse, 



with some bands of clay 17 



Eed marls, with beds of sandstone 15 



Eed sandstone 13 



Eed and variegated marls 3 



Eed sandstones 3 



Eed and variegated marls 2 



Beds of very hard red and white sandstone, 

 sometimes laminated, sometimes with 

 little sign of bedding, with many vertical 



joints 19 



Very hard grey saiidstone 1 6 



Hard red sandstone 2 



Softer red and white sandstone, laminated in 



places about 32 



Mottled sandstone, very hard at the base ... 4 



Softer mottled sandstone, with clay-galls ... 6 



Finely laminated soft mottled sandstones ... 12 

 Very hard red sandstones, the joint-planes 



coated with green incrustations 1 3 



Soft gi-een shaly rock 9 



Hard red sandstone, like the last 1 3 



Softer dark red sandstone 1 9 



Very hne-grained red sandstone 1 



Very hard red sandstone ; had to be ground 

 away, and could not be brought up in 



cores 4 



Hard white fine-gi"ained sandstone, with a 



rude dip 4 



1445 4 



The total depth is given as 1447 feet (Quart. Journ. Geol. Soc, 

 vol. xli., p. 523). 



The above measurements are taken from the details (down to 

 over 1400 feet) in pp. 731-735, 738, 739, 741, 749, 750 of Prof. 

 Judd's paper, except for the Gault, in which the section (opp, 

 p. 744) gives more detail than the text. These measurements 

 differ, however, slightly from those of the section, in which, 

 moreover, there is some discrepancy between the thickness of 

 the beds, on the left of the column, and the depths, on the 

 right ; the latter at first erring by a slight excess on the right, 

 then by a slight defect, and agaui by a slight excess. 



