37G 
LOWER OOLITIC ROCKS OF ENGLAND : 
The most northerly outlier of the Forest Marble in this neigh- 
bourhood is situated south-east of Broomhil] Farm, and N.W. of 
Epwell. The section was as follows : 
Drift soil 
Cornbrash 
Forest Marble -< 
FT. IN. 
f Brown clay, and irregular capping of 
-< loam with pebbles of quartz, 
I quartzite, flint, and ironstone 1 6 to 6 
/ Bubble of grey shelly limestone, with. 
" \ Terebratula intermedia, &c. - 30 
Grey marly clay, with thin films of 
sandy limestone 
Yery shelly blue limestones with grey 
marly patches, and lignite 
Hard blue and grey limestones, ob- 
scurely oolitic 
Tough blue shelly limestone, with"! 
lignite - - I 
Irregular hard blue shelly limestone, f 
slightly oolitic -J 
Blue shaly beds - 
Hard blue limestone. (Water.) 
6 
8 
1 
6 
6 
An adjoining quarry to the south of the above pit, showed the 
following beds : 
FT. IN. 
Brown clayey soil - - 3 
["Impure gritty and obscxirely oolitic 
Forest Marble - j limestones, flaggy and irregular 1 8 
1 Shaly beds - - 8 
[Blue shelly limestones, folse-bedded 1 10 
These quarries are opened in beds that present the general 
characters of the Forest Marble, but we do not clearly see the 
relations between the beds in the two quarries. 
Islip, Bicester, and Buckingham. 
In the neighbourhood of Islip we have further evidence of the 
attenuation of the Forest Marble, which is shown beneath the 
Cornbrash in a quarry south-west of the church. The section 
was as follows : 
Cornbrash 
Forest Marble 
and 
Bradford Clay. 
Great Oolite 
/ Bubbly limestone with WaldJieimia 
\ dbovata, Somomya, ~&c. 
fGrey clay with thin bands of limestone 
I (impersistent) - 
Fissile layers of brown sandy and false- 
bedded limestone, ripple-marked ; 
with clay -bands 
Blue and grey laminated clay - 
Hard grey marl with dark oolitic grains 
and many fossils : (impersistent) 
l_Grey marly clay - 
J Blue and yellow oolitic limestone, much 
"1 false-bedded 
FT. Ix. 
The fossil-bed yielded much lignite, and I obtained Luna 
cardiiformis, Ostrea Sowerbyi, Pecten lens, P. vagans, Waldhcimia 
cardium, W. digona, Rhynchonella concinna, Serpula, Polyzoa, and 
spines of Echini, 
