i
Journal of Proceedings.
be unconformable to the London Clay, as a Glacial bed would be, or
whether it passes down into the London Clay by brickearth-loam beds,
as the Bagshot does; and thus ascertain whether what I think is the case
be well founded or illusory. Being within a moderate walk from
Epping, as well as near to a Railway Station, the spot is very accessible
for the Club excursions ; and some member doubtless would not grudge
the trouble of previously ascertaining whether the pit is still open, and
affords a good section.
" I shall at all times be pleased to furnish any information which I
possess concerning the geological structure of areas in Essex, which the
Club may contemplate visiting in its excursions, and especially so in
reference to the Glacial beds which the members may thus encounter;
and to supply any explanation that may be desired of the relation borne
by these to the conditions and events which I have endeavoured to trace
in my memoir on the Newer Pliocene period in England.
" I also send for the Library of the Club a copy of the paper in the
' Philosophical Magazine ' for March, 1804, which is referred to in the
communication on the High Ongar section; and have supplemented it
with some manuscript additions and marginal notes, so as to bring it
into harmony with that modification of the views expressed in it which
my subsequent studies have induced.
" After writing the above, I looked up a spare proof of the plates to
both parts of the Newer Pliocene memoir (Quart. Journ. Geol. Soc, vol.
xxxvi. (1880), p. 457; and vol. xxxviii. (1882), p. 667), and prepared some
manuscript sections along lines marked in red on Map 3, plate xxvi. of
that paper ; by aid of which, and of the published memoir, members of
the Club, who care to give the necessary study to a difficult subject, may
realize to what extent the evidence furnished by the features of South
Essex bears out the detail of events shown in that memoir, as having
accompanied the Major Glaciation.
" If these two proofs and the MS. sheet of sections, with the notes and
explanations (which I now send with annotated copies of the two parts
of the memoir referred to), were mounted on linen, with a plain copy of
the one inch scale Ordnance Sheets, Nos. 1 and 7, they would be found
useful alike for study and for excursions. The Ordnance Map of the one
inch scale, with its engraved hill-shading, is a sine qua non for the study
of Glacial Geology , as no proper idea of the physical features of the
country can be formed without it. The representations which I have
given in Map 3, and in the lines of section across it, are indeed scarcely
intelligible without the Ordnance Sheets embraced in it being available
for collation with it, throughout every description.
'' Some of the Ordnance one inch maps have their contour shading
much worn off; but of some new electrotypes have been made, and care
should be taken, if possible, to get impressions from these."
Some remarks upon the paper were made by the President and Mr.
T. V. Holmes.
The following papers were also read by the Secretary :—"A Contribu-
tion towards the knowledge of the Arachnida of Epping Forest," by the
Rev. O. Pickard-Cambridge, M.A.; and—
Note ox the Occurrence of Scotophilus Serotinus, Gmael., in Essex.
By Robert M. Christy.
I have great pleasure in being able to add another species of Cheiroptera
to Mr. Henry Laver's excellent list, "The Mammalia of Essex," which
appeared in the last part of our 'Transactions' (vol. ii., pp. 157—180).