LAMPLUGH : BrRIED CLIFF AT SEWERBY. 
383 
section, we should remain ignorant of its existence. It is easily 
traceable, however, in the cliff near Sewerby, and, under favourable 
conditions when the slipped drift which obscures the section is 
washed away, there is to be seen, banked ag?anst the buried cliff, a 
series of deposits older than the boulder-clay which lies above the 
chalk. These beds contain a profusion of mammalian and other 
remains, and differ from anything- known elsewhere on the coast. 
The series comprises, in ascending order, A. an old sea-beach. 
B. an old land-surface. C. a mass of blown sand ; and these will 
be separately described. The sea is now cutting back obliquely into 
the ancient shore-line, the recent chalk-cliff joining the old chalk- 
cliff' at a slight angle, but, as in the new so in the old, there have 
evidently been many little bays and recesses, so that the trend is by 
no means regular, and may at any time change. 
Ciifftop 
Beach 
Fig. 2. Section of Cliff at Sewerby. 
Scale, 60 feet to 1 inch. 
Top Son... 
2b. Well -bedded Chalk Gravel, 
3a. Brown Boulder- clay 
3b. Stratified Seam of Silt and Gravel ... 
3o. Dark Bonlder-clay 
4. Rough Chalk Rubble 
C. Clean Blown-sand... 
B. Clayey Chalk- wash : an old land-surface 
A. Old Sea-beach of rolled chalk pebbles 
X. Ancient Cliff of Chalk 
The Sewerby Gravel," about 
2 to 3 ft. 
12 „ 
15 „ 
1 to 2 „ 
12 „ 
1 to 2 „ 
about 25 ft. 
» 5 „ 
M 35 ,, 
