44
SOME ESSEX WELL-SECTIONS.
(Part II.)
By W. WHITAKER, B.A., F.R.S., F.G.S., Assoc. Inst. CE.
[Read March 30th, 1889.]
To the accounts of 182 well-sections in Essex, given either in the
Geological Survey Memoirs or in my former paper,1 I am now able,
through the kindness of various helpers, to add 31. These are all in
the northern part of the county; such new sections as occur in the
southern part being published in a Memoir "On the Geology of
London and Part of the Thames Valley." These southern wells are
26 in number, and at the following places:—Althorn, Barking (2),
Brentwood, Chadwell Heath, Cold Norton, Beckton (really in Kent,
though north of the Thames), Grays, Havering, Ilford (2), Laindon,
Latchingdon, Lea Bridge, Mucking, North Fambridge, Purfleet,
Rettenden, Romford, Roxwell, Stratford, Waltham Abbey, Waltham-
stow, West Tilbury (2), and Woodham Ferris. All these sites are in
Sheets 1 and 2 of the Geological Survey Map, whilst those referred
to in the present paper are in Sheets 47 and 48. The total number
of Essex wells recorded now is 239.
I venture to suggest that if members should get accounts of well-
sections it might be preferable to send them to me, for publication
in bulk, rather than to retail them in a set of separate notes, except-
ing of course in the case of any very important and interesting
section that calls for speedy notice.
The Littlebury, Newport, and Wenden wells, with some other
information, will probably form the text for a notice of the deep
channel of Glacial Drift of which they give evidence. One of the
Newport wells has pierced a greater thickness of Drift than had been
found anywhere in the S.E. of England.
Berechurch or West Donyland.—Old Heath Bravery (Messrs.
Cuddon's), S.E. of Colchester. 1887 ?
Made and communicated by Messrs. Isler.
Pit of 8 feet, the rest bored, and tubed for 190 feet.
Water-level 50 feet down. Supply very plentiful.
1 "Trans: Essex Field Club," vol. iv, pp. 149—170 (1886). [Readers are asked to correct a
curious printer's error on p. 153 of this paper - for "Onigweil," read "Chigwell.''—Ed,]