﻿16 



MR. W. HILL ON A DEEP 



[Feb. 1908, 



Ci 



^ 



i^ 



t^ 





'^tjj:^ 



^^■13Q: 



ffidi 



pM^- 



iy^c^m ^ 



in 



.-:<K- 



^py- 



Wfty 



'r^' 



U, o 



wm 



^Mm 



'■•'■'••••'•ri^-ii "1^ 



from 200 to 300 yards wide 

 some 30 feet above the river- 

 bed. Beyond that the ground 

 again rises to the westernmost 

 knoll at Fox Holes. All this 

 rising ground seems to be a 

 mass of Drift banked against 

 the Chalk. Mr. Tindal Lucas, 

 of Fox Holes, in digging a well 

 for water, pierced 100 feet of 

 Boulder- Clay and gravel with- 

 out reaching water or Chalk, 

 although that rock is exposed 

 close by. He tried again some 

 25 or 30 yards nearer the out- 

 crop, and then found the Chalk 

 close to the surface. 



The next boring was made 

 a little way down the south- 

 eastern slope of a hill of Drift 

 on the south side of the Hiz. It 

 was made in the brickyard of 

 Mr. Theodore Ransom, in order 

 to obtain a better water-supply. 

 The site was some 200 yards 

 east of the London road on 

 the outskirts of Hitchin, and 

 about 2| miles in a direct line 

 north-west from the boring of 

 the Hitchin Joint Hospital 

 Board. It will be seen that it 

 began at the bottom of an 

 existing well, where the surface 

 is 272 feet above O.D. That a 

 considerable thickness of Drift 

 would have to be pierced here 

 was fairly obvious, but there 

 seemed little doubt that Chalk 

 would be reached, for it can 

 be seen at the surface about 

 500 yards eastward, while on 

 the western side Chalk is about 

 1000 yards distant. Messrs. 

 Le Grand & Sutcliff made the 

 boring, of which Mr. Ransom 

 has kindly sent me the follow- 

 ing details : — 



