DEPOSITED IN WATER. 
57 
This is so nearly in accordance with the section of Aldstone moor, 
given by Mr. Forster, as to leave no doubt of the continuity of most 
of the beds of limestone and some of the beds of gritstone. 
In Mr. Forster’s section of the strata in the mining country of 
Aldstone moor the same terms are thus found : 
Feet. 
Great limestone .. ... ... 63 
Various, including a thin limestone ... 101 \ 
Four fathom limestone ... ... 24 
Various, including two limestones and at ) ^ ^ , 
the bottom a thick gritstone .. 1 
Scar limestone ... ... ... 30 
Various, including a bed of coal, and two 
thin linestones 
Tyne bottom limestone ... ... 24 
515 
Whetstone bed. 
Whin sill. 
North-west of the High force, between Ettersgill beck and Langdon 
beck, on the downcast side of Burtreeford dyke, the Yoredale series 
may be examined in an escarpment not above three hundred and 
sixty feet in height, coal, shales, and grits coming on above, the 
Whin sill being about eighty feet below. Two sections were taken 
in different directions. (The beds dip into the hill which considerably 
reduces their apparent thickness.) , 
Feet. 
Top of main limestone. 
Base of ditto ... ... 63 below the top. 
Grits and shales. 
Top of underset limestone 
142 
Top of solid gritstone 
242 
Top of scar limestone 
317 and 
262 
Bottom of ditto ? 
329 ... 
274 
Shales and grits. 
Hard gritstone 
... 
322 
Top of Tyne bottom limestone 
412 ... 
357 
Base of ditto 
436 ... 
381 
Top of Whin sill 
516 ... 
461 
I 
