GREAT OOLITE SERIES : BEDFORD. 
395 
Limestone 
Great Oolite 
Limestone. 
{Limestone 
Greenish sandy clay 
Limestone 
Greyish-blue sand 
White sand - 
Hard and soft stone 
FT. IN. 
10 
6 
10 
76 11 
Valley 
Gravel. 
Mr. Cameron informs me that the thickness assigned to the 
Kellaways Beds may be too great, as the Gravel and underlying 
strata were somewhat mixed at the junction. 
It is difficult to fix any definite division between Great Oolite 
Clay and Limestone ; in some places near Bedford Mr. Cameron 
has noted 10 feet of purple and black clays that represent the 
Great Oolite Clay. At Franklin's Pit, Bedford, this Clay com- 
prised mottled red, green, yellow, grey, arid purplish clay with 
selenite, resting on dark carbonaceous clay, Avith a concretionary 
ferruginous bed. (See p. 451.) 
At Cox's quarry, Bedford, I noted the accompanying aection in 
company with Mr. Topley and Mr. Cameron : 
FT. I. 
Loamy soil (resting irregularly on bed 
below). 
f Sandy and calcareous loam and gravel 
\ contorted. 
Pale grey nodular marl, with nodules of 
compact grey limestone (burnt for lime) ; 
passing down into pale grey earthy Jime 
stone ; Ottrea Sowerbyi - - 2 6 
Clay parting. 
Dark blue limestone (1 ft.) passing into 
thin flaggy, false-bedded and blue-hearted 
limestone (like Forest Marble) of irre- 
gular thickness - - 2 to 3 
Dark blue clay, crowded with specimens 
of Ottrea Sowerbyi - - - 1 
Blue and bluish-grey limestones and shaly 
clays with Ostrea Sowerbyi ; the beds are 
slightly oolitic in places, more especially 
those near the bottom of the quarry. 
There are also layers of denser limestone 
with streaks of marly limestone. The 
beds generally are variable in thickness 
and false-bedded to some extent. The 
full thickness is about 12 feet down to 
clay : seen to depth of - _ 7 Q 
The limestones are quarried chiefly for lime-burning. Among 
the fossils there may be found Nautilus Baberi, Modiola 
imbricata, M. sowerbyana, Myacites calceiformis, Ostrea Sowerbyi. ', 
Pinna ampla, Trigonia, &c. 
The full thickness of the Great Oolite Limestone is from 
25 to 30 feet. 
Great 
Oolite 
Limestone. 
