71 
14,—Some Surrey Wetts. (Fourth Paper.) 
By W. Wuiraxer, B.A., F.B.S. 
(Read October 18th, 1904.) 
Tue total number of recorded well-sections in Surrey was 
brought up to 302 in my last paper on the subject, published in 
the ‘Transactions’ for 1900. We have now thirty-eight more, 
two thirds of which are in the western part of the county; but 
one of these is practically a duplicate of a previously published 
section, so that the total is 339. Of these only three reach to the 
depth of 500 feet (at Purley, Battersea, and Dulwich), and only 
two are of special interest. 
At Purley a boring has been carried through the Chalk and the 
Upper Greensand to the Gault, thus for the first time proving 
the depth to the Gault in that neighbourhood. 
At Tatsfield a supply of water has been got for Limpsfield and 
Oxted by boring through the lower part of the Gault, the Folke- 
stone Beds, the Sandgate Beds, and some way into the Hythe 
Beds. We have now a definite measurement of the Folkestone 
Beds, from top to bottom giving a thickness of 211 feet. 
The figures for thicknesses and depths stand for feet, unless 
otherwise stated. Words referring to the classification of the 
beds, in square brackets, have been added by the writer. 
Battersea. Latchmere Road Baths. No. 2 Boring. 1901. 
Made and communicated by Mzssrs. A. C. Potter & Co. 
40 feet of tubes, of 13 inches internal diameter, fixed into the 
London Clay, to shut out surface-water, and 260 feet of tubes of 
10 inches internal diameter, 9 feet into the chalk. 
Thickness Depth 
G) 
eeTT WEAGS GY OUN |.0.0ssccdves dteeweessscpeeccseersdacnenwesoae — 
MUMMIET PETE! ic cnner» soneyate¥gre ceeace<erousuen ve¢aetace sense 15 24 
Clay, with 6 inches of claystone at 
ENG DASGacenteanertocects sede cowenessess 393 ©6634 
IEG RIN; GLB Sea ucercecwcteantvececsasecsce stan 30 934 
Dard Glawh covccgcvecesceeteces sutteeerewese 153 109 
onion Clay, ies olay, with claystone 129 to 
Be eet 1294 feet dOWN....sessecsseceseessees 39 148 
Dandy Clay - sc assesswedssaasenectsosoteacd sts 3 151 
Basement-bed [?]. Conglomerate and 
BOMB ate sepeaeccsaddarscetrssvedsss severe 5 156 
