66 Sheppard : Recent Glacial Sections in Holderness. 
The Naturalist, Jan., p. 46). At Leven, however, while the 
bedding, as at Cottingham, is fairly constant in one direction, 
and at an angle of about 40 degrees, the contained pebbles 
are practically the same as those in the Kelsey Hill and other 
Holderness Glacial Mounds. There is no covering of Boulder- 
clay, and from the small size of the material, and the fact that 
such shell fragments as obtained were reduced in size to almost 
unrecognisable pieces, and were few and far between, the im- 
pression is given that the great flat mass of gravel at Leven, 
in which this section occurs, is derived from gravel hills which 
once existed a little to the North-east. The gravel reaches 
practically up to the soil, and in one or two places were ferru- 
ginous masses hardly definite enough to be called * pipes/ 
among which some of the larger pebbles had stalagmitic de- 
posits upon them due to the disintegration of the fragments of 
limestone, in many cases small pebbles of various kinds were 
cemented to the larger ones by means of this calcarious deposit . 
This pit yielded the usual glacial erratics, notably Rhomb- 
porphyry (from Christiania), Cheviot porphyrite, and the 
fossils Gryphoea incurva, from the Lias, and Belemnites lance- 
olatus from the chalk, probably in the North Sea Bed. 
As already reported, the shells were very small and smashed 
to pieces, but among these, respecting which there, can be 
little doubt as regards identification, were Tellina sp.?, 
Cyprina islandica, Cardium edule and Buccinum undatum. 
There was also part of a Balanus. 
At Catwick, an old and extensive gravel pit has recently 
been re-opened, and shows a wall very similar to that just 
described at Leven, excepting that there is a greater proportion 
of larger pebbles and boulders. This pit occurs on a slight 
rise at the side of a stream which evidently drains an ancient 
mere. Shell fragments here were apparently entirely absent, 
although a more prolonged search might have revealed a few 
small pieces. The ‘ pipes/ due to percolating water, were 
much more definite, one in particular being most marked as 
all the pebbles within the eight inches or so of its width were 
in a perpendicular position, whilst the long axis of those in 
the gravel on each side were almost horizontal. 
In this quarry we picked up the same class of erratics and 
fossils as mentioned at Leven, with the additon of a rather 
good specimen of Ammonites communis from the Lias, and a 
fairly large and quite typical Belemnite lateralis from the 
Speeton clay. 
As it is possible that some of these sections may eventually 
again be neglected and grassed over, these notes are put on 
record. 
: o : 
No. 243’ of The Connoisseur has a well illustrated account of various 
objects of ‘ Blue John ' from the Castleton quarry, Derbyshire, in the 
possession of the Rt. Hon. Earl Howe. 
Naturalist 
