50 WELL-SECTIONS IN SUFFOLK. [Feb. I903, 



tenham, the supposititious existence of Eocene beds there at a depth 

 of 200 feet would involve considerable disturbance or faulting. The 

 simplest and easiest way out of the difficulty was to class all doubtful 

 deposits of that nature with the Drift, which might be of great 

 thickness. He agreed that if there was faulting at Woodbridge, 

 it probably was trough-faulting. He had described a deep channel 

 filled with Drift from evidence furnished by Essex well-sections : 

 there was no sign of Glacial Drift at the surface in some cases, and 

 yet the thickness of that deposit was 340 feet in one case, without 

 the base being reached, The ' clay-stone ' alluded to by the last 

 speaker was probably a septarian mass in the London Clay. The 

 varying water-yield of wells was not easily explicable. Systematic 

 recording of well-sections was highly desirable ; but this could only 

 be carried out properly by a Government Department. 



