W. WHITAKER—HERTS WELL-SECTIONS. 
175 
[Chalk, 2931 f ee t.] { 
6 6 
Ft. Ins. 
[Brought over 333 4 
f Hard chalk with few flints . 7 0 
Chalk, with 12- and 9-inch layers of hard 
flints at top and at bottom . 3 9 
Chalk and hard flints (12-inch layer at 
bottom) 
Hard chalk, with flints at bottom 
Hard chalk and flints . 
Chalk, with hard flints at bottom 
Soft chalk, with few flints . 
Hard chalk and flints, with a foot of 
soft chalk in the middle . 
Soft, and mostly sticky, chalk, with 3 
layers of flints, and 2 feet nearly all 
flints at bottom . 
Dark soft marl . 
Yery hard blue stone . 
Soft grey chalk, partly with flints, and 
with two flint layers in the lower part 
Yery hard flints, with soft veins of chalk 
Soft chalk, with few flints, a flint layer 
at top. 3 
Yery hard grey chalk, with few flints . 15 
Yery hard grey chalk, with one flint layer 26 
Lighter coloured chalk . 4 
18 
3 
1 
13 
3 
Total (given as461|- feet on the drawing) 460 5 
Bishop’s Stortford. —Local Board Sanitarium, a mile south of the 
town. Sunk and communicated by Mr. G. Ingold, of Bishop’s 
Stortford. Shaft 15 feet, the rest bored. 
Ft. 
Made ground . 8 
Gravel and sand . 2 
/ Grey and red sandy loam. 2 
[London Clay, 12 j Yellow sandy loam . 6 
feet] j Stiff brown clay, with red sand in the 
\ bottom foot . 4 
f White marly clay . 5 
White sandy clay ..... . . 3 
Greenish-grey sand . 14 
Brown clay . 2 
Dark green clay.1 
Brown clay . 5 
[Reading Beds, 52 . Bright green loam . 1 
feet] ) Yellow sandy clay . 6 
Brown clay . 1 
Slate-coloured clay . 8 
Dark clay, with green veins and black 
pebbles. 1 
Dark sandy clay, with white veins . 4 
Dark green sand. 1 
To Chalk 74 
Chalk . 30 
104 
VOL. III.—PART V. 
12 
