360 DAKYNS : LOWER CARBONIFEROUS ROCKS IN YORKSHIRE. 
The Brimliam rock consists generally of coarse grit, with some- 
times a flaggy base ; the shell beds are cherty sandstones full of 
shells. This is a very valuable set of beds, as from its peculiar 
character it can be readily identified, and thus affords a good horizon. 
The Lower Follifoot grit forms Henstone Band and the top of 
Meugher. 
In placing the top of the Kinderscout grit at the horizon of the 
little limestone next below the Lower Follifoot grit, I mean that it 
cannot be lower, though it may be higher, than that horizon. The 
Brimham grit is supposed to be the third grit of Lancashire ; and, 
according to this view, the shell beds and Follifoot grits come 
between the third grit and the Kinderscout grit. 
lu Upper Wharfedale the Kinderscout grit consists of the 
following members : — 
The Red Scar Grit. 
Measures. 
Sandstone. 
Measures. 
Sandstone, of Priest Tarn, probably equals grit of Pinlow 
Pike. 
Measures. 
Coal 0 to 6 inches. 
Top Grit of Grassington Moor. 
Shale, with a coal, 6 to 10 inches. 
Bearing Grit. 
The Bearing Grit is so-called because the lead veins are very 
rich in this bed. 
The Red Scar Grit is a coarse felspathic grit of a red tinge, 
which is apt to form such conspicuous red scars that it can be 
recognised miles away. It often consists of two members parted by 
a shale band containing a coal seam. It generally has on or near its 
top a thin bed of peculiar limestone, which has the appearance of a 
tesselated pavement owing to its close jointing. 
It is also noteworthy that bands of calcareous sandstone occur 
in Gatcup, near the base of the Red Scar Grit. Similar bands have 
been found by Mr. J. E. Goodchild, generally underlying the rock 
