30 
"building's common to its surface. The length of this Stratum, from unconformableness or 
other causes, is more deficient than either of the other rocks on the Stonebrash Hills. This 
might be adduced as one of the many instances of the necessity of attending to the course and 
full extent of every Stratum, before any geologist can decide upon the number contained in the 
British series ; and hence also it must be evident, that those who have taken only partial 
views of the subject must he perpetually liable to error. Until the clay was removed from its 
top by the recent excavation of canals, &c. this rock was thought to contain but few fossils, 
and thus to be sufficiently distinguished from the under Oolite, which is most abundantly stored 
with them ; and considering these fossils as appendages to the top of the Stratum, the remark 
still applies as to the rock itself. That extraordinary fossil zoophite, the pear encrinus, was 
first discovered most perfect with its root attached to the top of the rock, in a field belonging 
to my truly good friend, the Rev, Benjamin Richardson, at Berfield, near Bradford; and 
thence for some time afterwards was called the Berfield fossil. Several species of zoophites, 
with five or six species of inequivalved Bivalves and Echini, are the most numerous identifications. 
Between the beds of stone deeper in the rock, oysters and a few inside casts of equivalved 
bivalves occur : very small univalves, similar to those in Forest Marble, are numerously 
blended with ova and minute corals, in some of the upper beds, which are very indifferent 
Freestone. 
On account of the scarcity of fossils in the rock, and the rare exposure of those on its top, 
and the great variation it is subject to, this seems the most difficult to trace to its extremities of 
any of the rocks which compose the Stonebrash Hills. 
ORGANIZED FOSSILS of the Clay over the Upper Oolite . 
TIG. 
1 Pear Encrinite 
2 Vertebrae ditto 
3 Stems ditto 
4 Tubipora 
5 Millepora 
6 Chama crassa 
7 Plagiostoma 
S Avictila costata 
9 Terebratula digona : the long variety 
10 Terebratula reticulata 
Bradford, Berfield. 
Farley Castle. Hinton. 
Winsley. Pickwick. 
Broad field Farm. Farley Castle. 
Broadfield Farm. Farley Castle. Hinton. Pick- 
wick. Westwood. 
Stoford. 
Bradford. 
Bradford. Hinton. Winsley. 
Farley Castle. Stoford. Bradford. Winsley. 
Pickwick. 
Farley Castle. Bradford. Stoford. Hinton. Wins- 
ley. Pickwick. 
■ ORGANIZED 
TIG. 
1 Tubipora 
2 Tubipora 
3 Madrepora turbinata 
4 Madrepora porpites 
5 Madrepora flexuosa 
FOSSILS of the Upper Oolite Rock . 
Broadfield Farm. Combe Down. 
Combe Down. 
Farley Castle. Broadfield Farm, 
Broadfield Farm. 
Castle Combe. 
Westwood. 
