LAMPLUGH : GLACIAL SECTIONS. 
397 
in Section No. 2. To the south of the town I have traced for 
some distance in the Purple Clay a band of clay with similar lines, 
which passes into, or admits, lenticular patches of sand and gravel, 
and these though at various levels are really on the same horizon, 
the clay-band resting on, and following the inequalities of an extre- 
mely uneven bed. There is a similar band in the Purple Clay on 
many parts of our Holderness coast, and it may often be traced 
for long stretches, as for instance, from Witherensea nearly to 
Dimlington, about three miles ; I believe this band forms through- 
out a definite horizon, corresponding to the still more marked divi- 
sion in the Purple Clay north of Flambro' Head. This clay-band, 
though often containing scratched blocks, and in all respects a 
true " boulder clay," certainly does not seem to me to be moraine 
profonde^ but a deposit by water, 
To other interesting points in these sections I shall no doubt 
have occasion to revert in describing others, so will not now dwell 
on them. 
I have, in concluding, to thank G. B. Godfrey Esq., the con- 
tractor for the new sea-wall, for leave to view the section during 
the progress of the works, and for his readiness to supply me with 
any desired information on the subject. 
ON SOME SECTIONS IN THE LOWES PALEOZOIC ROCKS OF THE 
CRAVEN DISTRICT. BY J. E. MARR, B.A., F.G.S. 
The sections to be described are of great interest, as showing an 
unconformity at the base of the May Hill beds in Prof. Sedgwick's 
native district of Craven. The principal section at Austwick has 
been described by Prof. Hughes, and an unconformity described 
as existing there, ( Geol Mag., Vol. iv, No. S.) but an opportunity 
occurred in the earlier part of this year of more definitely deter- 
mining the age of the beds just above the unconformity. 
