DAKYNS : THE GEOLOGY OF NIDDERDALE AND THE WASHBURN. 297 
White's Allotment. Elsewhere in the Washburn basin it is succeeded 
in order by the lower and upper grits of Follifoot Ridge, the Shell 
Bed and two beds of the Brimham Grits, viz., the flags and the 
Brimham Rock proper. 
A coal has been worked in the Lower Follifoot Grit near Thorn- 
thwaite, where the section of the rock is as follows : — 
« Ft. Ins. 
Hard Stone and Shale ... ... 75 
Coal ... ... ... ... 6 to 8 
Hard Grit 
Rotten Stone 
Stone 
The upper part of the Kinder Scout Grit appears as an inlier at 
Thornthwaite, and also immediately west of Dacre and again around 
Long Scales. 
The Shell Bed gives an excellent and invaluable horizon. Its 
course can be easily seen by reference to the engraved six-inch 
Geological Maps, for wherever it occurs the words " shell bed " have 
been printed on the map ; but I may shortly state that, running 
along the upper part of Redshaw Gill, it turns north by Black Sike, 
runs under Ravenstones Plantation, and thence by the farmhouses 
Hay Slack, Hoodstorth, Fadside Hall and Padside Green, all of 
which stand on it. It occurs on the south-east side of the Beamsley 
anticlinal in several inlying and outlying patches, particularly north 
of Fewston, where there are two shell beds. 
The greater part of the Forest Moor is formed of Follifoot Grits, 
surrounding islands of the shell bed ; and east of Blubberhouses an 
inlier of the Brimham Rock appears. 
Immediately south of the Craven Fault we have a regular series 
of the beds in a synclinal trough, up to the third bed of the Brimham 
group. 
North of the limestone axis of Greenhow Hill the beds of the 
Kinder Scout Grit occupy the northern slope of Beamsley Moor. 
Hardcastle and Cross Gill Moors are occupied by the Follifoot Grits. 
The top of the Kinder Scout Grits runs up from Ashford Side Beck 
to the Henless Beck, where it is marked by the tesselated limestone. 
