W. WHITAKER-HERTFORDSHIRE WELL-SECTIONS. 
61 
Redbourn.— One of 5 borings near the village, for the supply of 
water to the mills on the river Yer (sunk by Mr. R. Paten), 
1851, 1852. Communicated by Mr. S. C. Homersham. The 
five borings overflowed, yielding 750,000 gallons a day. 
Thickness. Depth. 
Soil and clay . 3 3 
Gravel . 3 6 
Chalk, mostly soft, but some hard, with four thick 
layers of flints ..... 63 69 
Chalk, with six beds of “ rock ” or “ rocky chalk ”. 186 255 
Rye Common - .— Northern end, a little southward of St. Margarets. 
For the New River Company, 1885. Made and communicated 
by Messrs. Docwra. Shaft and cylinders 197 feet 2 inches, 
the rest bored. Galleries of 69^- and 258 feet at about 142 
feet down. 
[River Drift] 
Chalk, 
187^ feet. 
Thickness. Depth. 
Loam and stones 
H 
Sandy loam . 
1 
H 
Loamy clay . 
1* 
6 
Gravel 
li 
18* 
Chalk and flints 
15 
Soft chalk 
? 61 
76 
Chalk and flints 
? 61 
137 
Chalk. 
64i 
201* 
St. Albans. — Waterworks, close to Bernard’s Heath. The smaller 
and deeper well 1865, the larger 1877. About 410 feet above 
Ordnance Datum. Communicated by the Engineer, Mr. A. E. 
Phillips. Shafts 200 and 180 feet, connected by a tunnel, 
and with headings also. Boring, in deeper shaft, to 66 feet. 
30,000 gallons an hour have been pumped and more might be. 
Gravel . 30 i 
Chalk ; some very hard about 100 feet down [? Chalk Rock] 236 j 0 
A communication from Mr. R. B. Paten, referring to extensions 
of the newer well in 1882 (shaft deepened 5 feet, headings driven 
out, and borings of 140 feet), gives the following section :— 
Clay and gravel . 60 | q 0 c 
Chalk and flints . 265 f 
The new works, at the foot of Holywell Hill, have been described 
in ‘Trans. Herts Nat. Hist. Soc.,’ Yol. 1Y, Part 4, p. 117, and are 
only about 250 feet above Ordnance Datum. A section of the well, 
communicated by Messrs. Legrand and Sutcliff, is as follows: 
Thickness. Depth. 
Dug well . — 4 
Gravel. 20 24 
Chalk and flints 126 150 
St. Albans — Hawkswick, north of the town and west of the 
Harpenden Road. Made and communicated by Mr. R. B. 
Paten. Shaft 148 feet, the rest bored. 
Thickness. Depth. 
[Brick-earth and f Clay and gravel . 35 35 
Clay-with-flints ?] \ Rock [flints?] . 6 41 
Chalk and flints . 274 315 
