28 DESCRIPTION OF THE ROCKS 
The following is the 
succession of beds in the Glory mine. 
Gras- 
sington, 
( 
Plate 
Ft. 
5 
In 
0 
Plates above the bearing grit-' 
Top grit and thin plate 
30 
0 
1 
-Plate .„ 
1 
0 
‘ Bearing grit,' sometimes (60 ft.) ... 
96 
0 
Black beds intermixed with ‘ famp’ and nodules 
of chert 
6 
0 
Black beds, chert, &c. 
Blue limestone, the veins break through this in 
joints and threads 
9 
0 
4 CroyT or indurated clay with shells 
1 
3 
‘ Pipe-stopper’ (criuoidal) limestone .. 
36 
0 
Black limestone with water 
9 
0 
Lower limestone 
White limestone ,. 
35 
0 
Stone Plate 
9 
0 
- 
Limestone not penetrated ... 
60 
0 
The black beds in this section correspond to the dark laminated 
limestones previously described, which overlay the lower limestones 
in Ribblesdale, at Skipton, &c. 
In Nidderdale the series greatly resembles that of Grassington. 
Nidderdale . — Taking our station at Lofthouse, we find the lower 
scar limestone mass, cut into both by the Nid and a branch of nearly 
equal importance, called Steen beck. Passing up the Nid, the limestone is 
seen covered by four feet six inches of shale, with thin argillaceous lime- 
stone in the upper part, then six feet of unevenly bedded blue limestone, 
then a bed of plate, fourteen inches, on which is a * famp’ bed, (indurated 
wavy calcareous shale) and upon all, five feet of black compact lami- 
nated limestone. Some plate comes on, and then for half a mile 
further the river runs in a solid coarse pebbly grit rock, and above 
this for a vast height is a succession of thick sandstones, and shales, 
with coal. Further up the valley, the great limestone rises to some 
