Section of a Well Sinking at the Island, Gloucester, by Messrs 
Robertson & Co., and some Remarks upon the Thickness 
of the Lower Lias at Gloucester and the Neighbourhood. 
By W.C. Lucy, F.G.8. Read Feb. 6th, 1884. 
Last year my friends Messrs Roprerrson, consulted me as 
_ to the probable depth water could be found by sinking a well, 
as they were desirous of having an independent supply for 
the use of their brewery. 
After much consideration, it appeared to me that the 
Rhetic beds would be reached at a depth of not exceeding 
200 feet, in which water in fair abundance might be looked for. 
As the test of boring has shewn my error, I think it will be 
interesting to the Members of the Club to have recorded a 
section of the boring, which reached 350 feet, without finding 
water, or the Rhetics; and afterwards the ground upon which 
I formed my opinion, with a probable explanation of the 
cause of my mistake; and then to offer some remarks upon 
what seems to me to be the position of the Lias at and near 
Gloucester. 
_ The boring was commenced on the 9th January, 1883, with 
an augur, a well having previously been sunk nine feet; and, 
s the clay was soft, it was used for a depth of 90 feet. 
The chisel then became necessary, and was employed 
th Eioughout the remainder of the work. 
_ The size of the boring was sufficient to admit of the intro- 
duction of an iron lining pipe, with a seven-inch internal 
diameter, until 177 feet was reached, when a smaller pipe of 
5} inches was used. 
