140 
dleton Rock is thrown to the surface, forming a ridge of 
considerable lenofth, which extends to within half a mile of 
Woodhouse Hill. The identity of this rock with the Middle- 
ton rock has been proved by boring through it in both places 
to the same beds of coal. Proceeding along Rothwell Haigh, 
the strata dip to the south-east, and the " Middleton Forty- 
yard Coal", (or Crow Coal," as it is here termed,) is just 
below the surface of the ground. On the hill side adjoining 
the stone quarry, two thin seams of Coal crop out from be- 
neath the sandstone. These coal seams are probably the 
Middleton Upper Beds; and the sandstone is certainly the 
Middleton Rock; for it can be distinctly traced from one 
locality to the other. 
In the Woodlesford Cutting the same Coal seams lie beneath 
the same Sandstone until they are cut off by a downcast Throw 
of unknown extent, which occurs near the bridge ; and from 
this point to the Wakefield and Aberford road the sides of 
the excavation are entirely sandstone. A long embankment 
then carries the Railway past the Methley Colliery. The 
coal worked here is about sixty yards deep, and is supposed 
to be the " Warren House Coal," which is nearly two 
hundred yards above the "Middleton Beds." 
It is much to be regretted that no accurate section of the 
strata sunk through in this colliery can be obtained, and con- 
sequently no very satisfactory comparison can be instituted 
between them and the Warren-house" and " Lofthouse" 
measures at Newmarket. But if, as it is supposed, the 
" Methley Coal" be identical with the " Warren-house," it 
follows that a Throw down of considerable magnitude inter- 
venes between Swillington Brewery and Methley Colliery, 
which will account for the non-appearance of the out-crop of 
the Lofthouse Coal" in this neighbourhood. 
In prosecuting the geological examination of a district, it 
is obvious how much the work may be facilitated by refer- 
