8 
site direction, south towards Brinsworth, but to a greater 
amount, for the Thick coal appears on the railway rising at a 
very acute angle to the North. The exact amount of de- 
pression will be 350 yards, minus the difference of surface 
level between Brinsworth and Jordan Dam. A very fine 
natural section is next exhibited in the cutting of the North 
Midland Railway, under Treeton; the beds are rising ra- 
pidly to the South, from the red rock, opposite Catcliffe, 
to the High Hazles coal, at Swallow Nest ; and in the last 
southward cutting, through the Red rock, there is a fault 
which, if the coal in the cutting is the four-foot bed, will 
not be less than 140 yards, producing an elevation to the 
South, or depression of red rock, which, from this point, 
ranges up to Brinsworth. Again, the same effects are exhi- 
bited, in the lower beds in the Grannister, East of Dore and 
Totley, which is rising rapidly to the South. At Ringing- 
law Bar, the Hallam coal is seen similarly disposed ; so that, 
a little to the North of the present pits, it is covered by the 
third gritstone, from which slates are there dug. The same 
depression is proved by a consideration of the position of 
the High Hazles coal ; its basset is seen opposite Beighton, 
at the bottom of the hill ascending to Swallow Nest, a place 
H mile South of Treeton ; the place of basset being a quar- 
ter of a mile on the East side of the North Midland Rail- 
way ; but the same bed is 260 yards deep, at Brinsworth, 
and is worked at some depth near High Hazles, a long way 
to the west of Swallow Nest. In like manner, the North 
Midland Railway, about half a mile South of Beighton, 
crosses over the basset edge of the Thick coal, and then rests 
upon inferior strata. The depression, therefore, of beds 
from the south, or the southern axis of the synclinal, is 
proved, 1st, by a section in the ShefReld coal ; 2ndly, by 
one in the Thick coal ; 3rdly, by that of the North Midland 
Railway, under Treeton; 4thly,by that of the Gannister or 
Pecten coal : 5thly, by that of the Hallam coal, at Ringing- 
