162 PARSONS : TRIAS OF THE VALE OF YORK. 
THICKNESS. 
FROM 
SURFACE. 
Ft. 
In. 
Ft. In. 
6 
Grey Sand 
6 
oa a 
oO O 
7 
Bed Marl 
10 
0 
a a a 
40 b 
8 
Blue Clay 
6 
6 
AT f» 
9 
Flint or Stone 
3 
4 
50 4 
10 
Sand and Soft Warp, with water 
9 
0 
, 59 4 
11 
Ked Marl, with Gypsum ... 
12 
0 
1 1 4 
12 
Dark Clay, very tough 
4 
0 
1^ A 
13 
Eed Marl, with white matter 
4 
0 
*7Q A 
.4 to 4 
14 
Bluish Stone 
1 
0 
80 4 
15 
Ked Marl 
.. 5 
0 
ftp; a 
16 
Grey Sharp Sand ... 
2 
0 
87 4 
17 
I^ed Bind, very tough 
5 
0 
92 4 
18 
Blue Bind 
2 
0 
94 4 
19 
Bed Marl, with Gypsum 
8 
o' 
.. 102 4 
Particulars from Mr. W. Wetherill, Sanitary Inspector, Selby. 
N.B. — In this section I consider the Keuper to commence at No. 11. 
SOME ACCOUNT OF THE FOSSIL PLANTS FOUND AT THE 
DARFIELD QUARRIES, NEAR BARNSLEY. 
BY STEPHEN SEAL, F.G.S. 
I make no pretensions to a minute and varied know- 
ledge of the science of Geology. I do not pretend for one 
moment to add anything new to the store of geological lore 
already gathered. My aim is simply to place on record some 
account of the fossils found in the Darfield Quarries. 
These quarries are part of a belt of carboniferous rocks 
running from Heath Common, near Wakefield, via Chevet, 
Royston, Cud worth, Darfield, Mexborough, Chesterfield, and 
nearly as far as Derby, with variations in the texture and 
quality of the grit. The specimens I shall bring before you, 
so far as I am aware, are not to be found in any of the dis- 
tricts I have mentioned in such abundance as at Darfield. 
Small specimens of the Calamite and Lepidodendron are occa- 
