DEPOSITED IN WATER. 
41 
Thick grits and plates of Upper Millgill force 
Limestone of Simonside 
Alternating grits and plates, with three thin 1 
beds of dark limestone containing caryophyllia 1 
Limestone of Hardrow, forming the edge of) 
Lower Millgill force ... ... 1 
Gritstone 
Limestone belonging to the lower system. 
Feet . 
80 
30 
60 
40 
110 
In Pen hill we have the whole series about seven hundred feet thick, 
and notice in succession below the millstone grit, and upper flagstone, 
and coal, 
The little limestone. 
Black chert and plates. 
r The main limestone reduced in thickness. 
I Plates, grits, and coal. 
(. The underset limestone. 
Upper limestone 
Flagstone group 
f Grits and plates of considerable thickness, but not so thick as above 
Hawes. 
I The middle limestone here of considerable thickness. 
[ Grits and plates. 
Black limestone 
group 
f The Simonside limestone. 
I Flagstone and plate. 
-{ The Hardrow scar limestone, which ranges from Bishopdale by 
I West Witton and enters the Yore opposite Bolton hall. 
[ Grits and plates resting on 
The lower scar limestone divided by several plate beds. 
It is evident, therefore, that in an east and west direction the Yore- 
dale series retains so much of a definite character as to afford an ample 
general standard, to which all the variations on the south and north 
may be very conveniently compared. In general it is evident that 
the limestones approximate continually nearer together as we proceed 
eastward, the intermediate beds growing thinner. 
G 
