MIDLAND COUNTIES GEOLOGICAL, SOCIETY. 183 
deposit merely edges the coal field in one direction^ but 
apparently does not extend beneath it. Nearly adjoining 
Sedgley Beacon is a siliceous deposit connected with the 
Gornal sandstone, and probably the equivalent for the mill- 
stone grit^ which is not known in any other part of the dis- 
trict. 
The Wenlock and Dudley rocks are well developed at 
Hurst Hill^ crossing the road leading from Sedgley to Bil- 
ston, and barely three miles from Wolverhampton. The 
fossils are here abundant^ very beautiful^ and easy of access 
in the upper measures. It has been stated to your Commit- 
tee that the dislocations in the lower measures are of a 
singular and complicated character^ and highly worthy of 
examination. 
Taking a nearly direct line from Hurst Hill to Walsall^ 
your Committee find that the limestone, or rather, perhaps, 
limestone shale, has been sunk into at Monmore Green, near 
Wolverhampton ; the particulars of this sinking would form 
a valuable addition to your Society's papers. The next point 
of sinking is in the Bentley Estate, belonging to the Trustees 
of the Countess of Lichfield. Bv the kindness of the asrent, 
Mr. George, your Committee have obtained a section of the 
strata passed through, and many of the fossils, which are 
perfectly identical with the Dudley specimens. 
The limestone at Bentley, so far as at present examined, 
consists of two beds : the first being four yards thick, and about 
125 yards from the surface; it is admirably adapted for the 
iron furnaces as a flux. Below this are 39^ yards of shale, 
with limestone nodules, and then the main bed of limestone 
eleven yards thick. In the neighbourhood of Walsall, these 
two beds rise to the surface, and being less frequented than 
the rocks south of Wolverhampton, offer rich treasures to the 
collector. About three miles from Walsall, on the road to 
