w. WHITAKEE-HEETS WELL-SECTIONS. 
177 
Hadham, Much. —Green Tye. Public Well, 1879. Sunk and 
communicated by Mr. G. Ingold. Shaft 87 feet, bored 2 feet. 
Ft. Ins. 
White and bine Boulder Clay 
Hard brown clay. 
Bed sandy gravel 
Bed tough sand . 
Yellow sandy fine gravel 
Bed sandy gravel 
Brown clay [? London Clay or Drift] . 
[Boulder Clay] 
[Gravel and Sand 
32]r feet] 
54 
2 
18 
2 
5 
6 
0 
89 0 
Hatfield. —Ponsbourne Park, 1876. Sunk and communicated by 
Mr. E. P. Paten. Shaft 10 feet, the rest bored. 
Ft. In. 
S Clay and stones [? Boulder Clay] 
Bed sand. 
Gravel . 
[London Clay, j Blue clay. 
140 feet] f Sand and clay . 
f Light-coloured sand .. 
| Sand and pebbles . 
Light-coloured sand 
[Beading Beds, 
314- feet] 
Sand and pebbles 
| Sand 
Flints 
8 
2 
10 
106 
34 
6 
3 
11 
2 
8 
1 
To Chalk 191 6 
Sawbeidgewoeth (near Harlow, in field 393 of Tithe Map).— 
Hertfordshire and Essex Waterworks. Communicated by 
Mr. E. Easton. Shaft about 75 feet, the rest bored. 
[Drift, 31| feet] 
[London Clay, 
feet] 
43 
[Beading Beds, 
? 62 feet] 
{ Dark brown clay with flints . 
Gravel . 
Dark brown clay with flints . 
Gravel . . . 
f Blue loamy clay... 
J 
j Dark sand with water. [This may 
| belong to the basement-bed of the 
[ London Clay.]..... 13 
f Mottled clay .. . 13 
) Dark sand . 9 
j Yellow loamy sand with small pebbles. 6 
f Green sand with a little water. 34 
Ft. Ins. 
11 6 
London Clay ?] 
To Chalk 136 0 
Some specimens from a trial-bore differ somewhat, as follows : 
[Basement Bed of ( At 47 feet loam with green grains, 2 feet. 
L - - — — > , 51ffeet, brown loam. 
, 53 and 62^ feet, brown clayey sand. 
, 68, 74, and 79 feet, red mottled, light-coloured 
and brown mottled clays. 
, 91 feet, clayey sand. 
, 94, 104, 124 feet, fine buff sand. 
, 96 feet, deep red (ferruginous) sand. 
, 132 feet, chalk. 
