W. WHITAKER'—HERTFORDSHIRE WELL-SECTIONS. 
55 
Bishop’s Storteord.— South Road. Mineral "Water Works, 1886. 
Made and communicated by Mr. G. Ingold. Bored through¬ 
out. Water-level 14 inches down. 
Thickness. Depth. 
Made ground 
5 
5 
Gravel 
8 
13 
[Drift] 
Black loam . 
5 
18 
Gravel, with water ..... 
15 
33 
1 
k Grey sand 
53 
86 
[F Drift, or j 
' Light-brown or grey 
I clays 
4 
90 
London Clay F] 
| Yellow sandy loam ..... 
10 
100 
v, Sand and gravel 
5 
105 
f Sandy loam ..... 
H 
107# 
Light-brown clay, with 
stones 
2 
109# 
Strong dark-brown clay 
3 
112# 
[ ? Reading 
Beds] ‘ 
Clay, with layers of 
sand . 
9 
121# 
Gravel [ F pebbles] . 
2 
123# 
Sand ... 
9 
132# 
Brown clay ..... 
2 
134# 
l Sand .. 
H 
144 
Chalk 
43 # 
187# 
The depth to the Chalk is greater than in any of the other wells 
in the town, though the well at the Gas-works approaches this 
depth, being 135 feet to the Chalk. The thickness of Drift is 
remarkable, and Mr. Ingold thinks that all the beds above the 
Chalk may be Drift. 
Bratjghing. —Centre of village. Sunk and communicated by Mr. 
G. In gold. Shaft 18 feet, the rest bored. 
Gravel and brown clay 8 ) 
Chalk with flints . 95 ) 
Cottered. —Public well, on the Green. Communicated by Mr. 
A. C. G. Cameron, from information from Mr. Alridge, well- 
sinker, Walkern. 
Thickness. Depth. 
( Blue [Boulder] clay and 
[Glacial Drift] < chalk-stones . 50 50 
( Red loam and flints ..... 10 60 
Soft chalk, with 3 feet of stone at the 
base [? Chalk Rock] ..... . 112 172 
Cottered. —The Rectory. (Same authority.) 
Blue [Boulder] clay and chalk-stones. 
Chalk ..... ..... . 
In October, 1889, the water stood 30 inches 
had not been dry during the last 23 years. 
Datchworth. —Welches Parm. Over lj miles S.W. of the church. 
Prom Mr. A. C. G. Cameron. 
Boulder clay, with flints 15 ) 1CA 
Chalk ..... . 1451 160 
195 
60 
135 
in the well, which 
