240 
GLACIAL SECTIONS NEAR BRIDLINGTON. PART III. THE DRAIN- 
AGE SECTIONS. BY G. W. LAMPLUGH. 
IN 1881 I described before this society, a cliff section for a short 
time exposed in building* a new sea wall on the north side of Brid- 
lington ; and last year I undertook a similar section, lying to the 
south of the town. 
These sections differed very considerably, and I then avowed 
myself unable to correlate them ; but expressed a hope that I might 
be able to do so, by the aid of information which might be gleaned 
whilst drainage works were being carried out in the town. These 
works have now been completed, and I desire on this occasion to lay 
before you the results obtained. 
During the progress of the work I made sketch-sections and 
notes of the whole length, — about miles — and have since worked 
these in on the Ordnance plan of five feet to the mile ; but as this is, 
of course, too large for publication, and there is sufficient similarity 
about the sections, I have reduced those which are most represent- 
ative, following the main drainage lines to a horizontal scale* of 
eighteen inches to the mile. These will, with the aid of a few notes 
on the unpublished sections, I think, suffice to show the structure 
and arrangement of the beds. 
I have also prepared a ground plan of the town and its imme- 
diate neighbourhood, which will show the levels and general run of 
the beds ; and will help me to express my views on their origin. 
The Sections. The deepest drains were those near the outfall 
across the harbour, where a depth of 22ft. was reached ; the 
shallowest were about 5ft. The average depth of the drains was 10ft. 
The following beds were cut through : — 
Top soil, made ground and old marsh ground, sometimes of 
*The length of the sections as compared with their depth, has compelled me 
to depart from my usual practice of drawing to natural scale, and the vertical 
scale is in this case exaggerated three times, a fact to be borne in mind when 
comparing this with former sections. 
