Surrey Wells and their Teachings. 61 



Black sand 4 



Sandstone 5 



Sandy clay 3 



Shelly bed 2 



Black sandy clay and sand 6 



29 



He infers that, if both sections are right, the fault shown in the Park Hill 

 railway-section (1883) extends northward. 



Denbies, near Dorking. 



Dr. J. Mitchell's MSS., p. 248. 



About 600 feet above Ordnance Datum. 



Water-level, 424 feet down. September, 1876 (J. Lucas). 



Gravel, abounding in small flints of the size of peas 26 



Claj-, like pipe-clay 1 



Clialk, with and without fliuts 343 



370 

 Has been deepened to 444 feet, with good supply. 



Egham. — Staines Waterworks. 1883. 



Sunk and communicated by Mr. T. TiUey. 



Shaft 260 feet ; the rest bored. 



Sand-sprmg, at a depth of 306 feet, yielded 30 gallons a 

 minute, at a depth of 16 feet (cloudy). Another, at 337 feet, 

 yielded 4 gallons a minute at the surface (bright). At 97 feet 

 from the surface about 7 gallons a minute was found to be the 

 yield of the water from the Chalk (October, 1882). At 130 feet 

 from the surface the yield of the sand- springs was 400 gallons a 

 minute (April, 1883). 



Ground made up 4 



Saud and gravel [Biver Drift] ; bottom part coarse, with large 



flints and large clay-stones [septaria] on the clay 20 



Blue [London] Clay; with pebbles at 162, 172, and 251 feet 



from the surface, and sHght soakage at 178 feet 235 



Mottled clay 47 



Red sand (with water) 14 



Red sand rock 1 



Eed sand IJ 



Mottled clay 1(5 



Sandy clay (with water) 14 



\ Sandy clay and chalk, mixed 2i 



Chalk specimens, fi-om 700 feet, very hard and gi-eyish... abnut 346 



[Reading Beds, 

 96 ft.] ■^ 



700 



