298 
LOWER OOLITIC BOCKS OF ENGLAND : 
mile east of Blackford Barn, and north of the road ; and it is 
again exposed on the east, by the bend of the road or field-track 
near the main road between Quenington and Milton End. Clayey 
ground immediately beneath the Cornbrash indicates the presence 
of the Forest Marble clays. The ground immediately around the 
Barn yields slabs of Forest Marble, and not Cornbrash ; but I 
was informed that trial-holes had shown there was no good stone 
there, a fact that receives some confirmation from the thickening 
of the Forest Marble clays towards the west, in the quarry south 
of Pilham Lodge. The northern slope of the ploughed field in 
which we find the Coral-bed, yields fragments of rock like Great 
Oolite ; and I obtained specimens of Isastrcea limitata and 
Thamnastraa. 
The most important evidence of the age of the Coral-bed is 
obtained from the quarry immediately west of Honeycomb Leaze, 
where on top of the Great Oolite, and beneath the Forest Marble, 
there is a rubbly bed, that yields Corals. The following is the 
section at Honeycomb Leaze, about 2 miles north-west of 
Fairford : 
Brown loamy soil, with bits of limestone 
Forest Marble - Flaggy oolite with bluish tinges 
ri * r\ r* f Rubbly bed with Ostrea, Rhynchonella, 
J and CoralB, S^ina, &c. 
-s p a i e oolites, much split up : some beds 
I very fine-grained - - 4 6 to 
FT. IN. 
Division). 
In addition to Stylina there were also calcitic Corals like those 
found in the field where the Fairford Corals have been obtained ; 
but most of my specimens were poorly preserved. 
The top beds of flaggy oolite are seen again in the road south 
of Honeycomb Leaze. A quarry north of Honeycomb Leaze 
copse showed the following beds : 
FT. IN. 
Forest Marble - 
Great Oolite 
(Upper 
Division). 
Oyster-bed, with Ostrea Sowerbyi, 
Lima cardiiformis, KhynchoneUa, 
Terebratula maxillata, masses of calc- 
spar (? calcitic corals) 
Bubbly beds of oolitic and shelly lime- 
stone; .... 
Hard white oolitic limestone and com- 
pact limestone with scattered oolitic 
grains - - - - 
Fine and pale oolite like Minchin- 
hampfcon Stone, passing down into 
tough shelly oolitic limestone 
Grey sandy and oolitic rock (like 
Stonesfield Series) - - - 1 6 
A third quarry, to the W.N.W. of the last, and on the north 
side of the road, showed about 5 feet of grey sandy and feebly 
oolitic limestones, overlaid by oolitic beds with lignite. The 
surface-beds were much disturbed, presenting appearances like 
" Trail." The stone itself reminded me of the Great Oolite 
