VII. 
SOME HERTFORDSHIRE WELL-SECTIONS. (SECOND PAPER.) 
By W. Whitaker, B.A., E.R.S., E.G.S., Assoc. Inst. C.E. 
j Read at Watford , 22 nd April , 1890. 
It may be useful to give references to accounts of Hertfordshire 
well-sections that have been published in Geological Survey 
Memoirs, or in my earlier paper on the subject communicated to 
the Hertfordshire Natural History Society in 1885. These are as 
follows:— 
In ‘The Geology of London,’ etc., vol. ii, pp. 43-58 (1889).— 
Abbot’s Hill, Abbot’s Langley (2), Aldenham, Barnet (5), Bayford, 
Beaumont Green, Boxmoor, Broxbourne (2), Bushey (6), Cheshunt 
(5), Chorley Wood, Elstree, Essendon (2), Gade Valley (3), Gor- 
hambury, Hatfield (Ponsbourne Park), Hoddesdon (3), Langley (2), 
Oxhey, Radlett, Rickmansworth (6), Waltham Cross (3), Watford 
(7), and Wormley (3), or in all 60, of which many had been pre¬ 
viously printed in vol. iv of the Memoirs of the Geological Survey 
(1872), or in ‘ Trans. Herts Nat. Hist. Soc.,’ Vol. Ill, Part 5, pp. 
173-180 (1885). 
In ‘ The Geology of the . . N.E. Part of Herts,’ etc. (Sheet 47), 
pp. 82, 83 (1877).—Amwell (2), Bishop’s Stortford (6), Eurneaux 
Pelham, Hadham, Little Munden, Perry Green, Royston (3), and 
Stocking Pelham, or in all 16. 
In vol. iv of the Memoirs of the Geological Survey, pp. 447-454 
(1872), the following, which are not included in the London 
Memoir:—Amwell, Berry Green, Bishop’s Stortford (10), Hailey- 
bury, Hitchin, and Tring, or in all 15. 
Of those in my previous paper the following have not been 
reprinted in the London Memoir:—Albury, Bishop’s Stortford, 
Little Hadham, Much Hadham, Sawbridgeworth (3), and Ware 
(2), or 9 in all. 
There have therefore been published, as above, 100 Hertfordshire 
well-sections, to which this paper adds 52. 
The figures stand for feet, unless otherwise stated. 
Amwell.— New River Company. Two wells. Communicated by 
Mr. I. Taylor, Engineer to the Company, 1885. 1. Amwell 
Hill ( ? the same as that noticed in the Memoir on Sheet 47, 
p. 82). 2. Amwell Marsh. Water-level 29 and 4 feet down 
respectively. 
1 
2 
To Chalk 2 5 
Chalk 158 377 
Aston. —Aston End. Noted by Mr. W. Topley. 
Boulder Clay . 15 
15 
40 
Chalk 
