320 
LOWER OOLITIC ROCKS OF ENGLAND: 
Great Oolite 
(Upper Division). 
FT. IN. 
Bubble - - - 2 or 3 
Marl - - - - - 6 
Limestone - - - 6 6 
Marl - -.- - - 4 
Limestone with Nerincea~bed at base 6 6 
Marl - - - - - 6 
JRubbly limestone, seen to depth of - 6 
Similar beds were exposed by the Fheasantry on the road from 
Wootton to Glympton, and also to the east of Wootton. 
Beneath these upper limestones there is a series of alternating 
limestones and marls, which are shown in the road-cutting north 
of the stream, between Wootton and Woottondown Farm : these 
intermediate beds may be about 25 feet thick. Tiie lower beds 
of Great Oolite from near Linch Farm to Purgatory, consist 
mainly of marl with only an occasional band of limestone : and 
these are probably not less than 25 feet thick. (See p. 324.) 
The railway-cuttings on the branch railway to Woodstock 
showed the following succession of beds beneath the Forest 
Marble (See Fig. 108, p. 374):- 
.,..,, f Blue claA's, with impersistent beds of 
* orest MarbJe -( '-kwii,, .. J ^iui i; 
FT. IN. 
1. 
Great polite 
(Upper Division). 
flaggy, shelly, and oolitic limestone. 
OoliteSj presenting a somewhat mottled 
appearance (like some beds of Corn- 
brash), with pale-grey, blue, and 
greenish tinges, due to irregular stain- 
ing and weathering: A/eriiicea (abun- 
dant), Ostrea and Corals - 1 6 to 2 
Limestone - 1 to 1 6 
Shelly limestone, with Astarte, Ger- 
villia, and some Gasteropods (resem- 
bling shelly bed near Akeley, Bucks) 1 
Pale grey earthy limestone (blueO 
hearted) - - - "140 
Compact limestones with scattered [ 
grains of oolite - - - J 
Green and grey racy clay, passing 
down into black carbonaceous and 
racy clay with much lignite 3 6 to 6 
Earthy oolitic limestone, with Cyprina, 
Ostrea Sowerbyi ; and gritty oolitic 
clay - - - - 5 
Clay, Ostrea abundant - - - 1 8 
Slightly oolitic limestone, compact and 
shelly - - - 1 8 to 2 
Oolitic limestones - - 4 to 4 6 
Fossil bed: Marly limestone, occasion- 
ally oolitic, with Terebratula maxil- 
lata very abundant (all sizes and con- 
ditions), Lima cardiiformis, &c. 
3 to 4 
The section, which I had the advantage of studying on one 
occasion with Prof. Green, compares very well with that seen to 
the south-west of Enslow Bridge. The Fossil Bed merges up 
irregularly into the bed above. The green and black c'ay recalls 
some beds of the Great Oolite Clay of the country to the north- 
east. It is difficult however to correlate the beds with those of 
