400 
LOWER OOLITIC ROCKS OF ENGLAND : 
A quarry opened to the south-east of Roade, for ballast on the 
railway, showed 8 feet of pale, flaggy, and shelly false-bedded 
oolite, yielding no fossils, and with a crumbly marl on top. The 
same beds were exposed at the base of the cutting on the south, 
capped by 6 or 7 feet of rubbly be Is, with broken-up marly stone 
on top, with Ostrea, &c. These are evidently the same as the 
higher beds of the section above recorded. 
The Great Oolite has been well exposed in the cuttings of the 
L. & N.W. Railway at Roade, and also in quarries to the south- 
east. The general section is as follows : 
FT. IN. 
"Clay and fissile beds of grey oolite, 
with Ostrea Sowerbyi. 
Fossil Bed : Grey marly limestone, 
with calcitic Corals, Terebratula 
maxillata, Rhynchonella varians, Tri- 
gonia, Myacites tumidus, Pecten annu- 
latus, Lima cardiiformis, Ceromya 
Great Oolite j Symondsi, Modiola imbricata, Gas- 
Limestone, f teropods and Nautilus - 1 to 3 6 
False-bedded oolite, shelly in places, 
and with thin marly beds (8 feet 
seen in quarry) - about 15 
Pale earthy and oolitic limestone, 
passing down into dense grey oolite, 
with white marly kernels ; full thick- 
ness about - - - 3 6 + 
Upper Estuarine. Green clays, &c. 
Northampton Sand. 
Upper Lias Clay. 
We have in the Great Oolite Limestone, a false-bedded series 
overlaid and underlaid by even beds of limestone : these are well 
shown in the cutting north of Roade Station. The fossil-bed, 
where at the surface of the ground (as shown in one of the 
quarries), weathers to a rubbly marl, which is piped. 
At Blis worth, a quarry in the Great Oolite showed the 
following section : j^ T J N 
Glacial Drift. - Boulder Clay, &c. 
Great Oolite / Green and bluish grey clay with Ostrea 
Clay. "I subrugulosa, and lignite 2 
'Flaggy limestone (Pendle), with Aero- 
salenia, &c. - - 5 
Grey earthy and oolitic limestone : 
Pholadomya - - - - 2 
Banded earthy limestone, flaggy in 
places and minutely current-bedded 
2 to 3 
Hard shelly oolite - - 5 to 
Clay with Ostrea - - 
Fossil-bed: Lima, Terebratula maxil-~\ 
lata - - - - ' I 3 
Pale marly beds, with scattered oolitic [ 
Great Oolite 
Limestone. 
grains 
Oolitic limestone I 
Nautilus Baberi, 
Clypeus Hulleri 
window sills, &c.) 
Alternations of hard blue-hearted stone 
and clay about 
" Blocks ") with 
N. subtruncatus, 
(stone used for 
