144 LOWER OOLITIC ROCKS OF ENGLAND: 
Hyatt's Pits, and these are overlaid by a bed of hard brown 
oolitic limestone, and by about 3 feet of rubbly oolitic limestones 
with Ostrca. Still further south the lower beds of the Inferior 
Oolite become much attenuated. The Midford Sands have been 
exposed near Stow-on-the-Wold to a depth of from 6 to 10 feet, 
and above them are beds with Polyzoa and Crinoidal remains,* 
suggestive of the Pea Grit Series ; but there the Lower Freestones 
appear to be much reduced in thickness, while the higher strata 
become more important. Thus in the road-cutting, and in a 
quarry to the west of Stow, the following beds were shown : 
FT. IN. 
("Flaggy oolitic limestone, and hard 
T * r\ TX brown obscurely oolitic limestone 
Inferior Oolite J (resem bling the Chipping Norton 
(Ragstones). *\ L imestone) . _ . 8 
IJEtiibbly oolite with Clypeus Ploti. 
Again at Little Rlssington, as remarked by Prof. Hull, the 
Clypeus Grit comes very near to the Upper Lias, the intervening 
subdivisions being for the most part unrepresented.! 
The easterly attenuation of the Inferior Oolite may be judged 
from the following sections. Prof. Hull states that at Turkdean, 
north of Northleach, the thickness of the Inferior Oolite is as 
follows : 
FT. IN. 
Ragstone \, 
Oolitic Marl - - - -J 
Lower Freestone - - - - - 46 
Yellow Sandstone - - - 14 
South-west of Bonrton-on-the-Water, freestone with bored-beds 
has been quarried along the Foss Way, and near Clapton, while 
further south at Sherborne, east of Northleach, Prof. Hull gives 
the following section J : 
FT. IN. 
fRubbly oolite, with Clypeus Ploti, 
Gresslya, Lima giUbosa, Trigonia cos- 
Inferior Oolite< tata, Terebratula globata, &c. 
and Sands. | Freestone ... about 5 
l_Yellow sandstone and sands - 8 
Upper Lias - Blue clay with Ammonites bifrons. 
The thickness of the Inferior Oolite between Northleach and 
Bourton-on-the-Water probably varies from 40 to 80 feet, attenua- 
tion taking place generally in an easterly or south-easterly 
direction. 
North-east of Dodds Mill, Barrington Spinneys, a section 
showed apparently the upper beds of the Inferior Oolite, consisting 
of about 6 feet of rubbly and marly oolite, with grey clay in 
pockets on the top. Terebratula globata is abundant, and 
Rhynchonella also occurs. 
* Hull, Geol. Cheltenham, p. 30 ; and E. A. Watford, Quart. Journ. Geol. Soc., 
vol. xxxix. p. 225. 
f Hull, op. cit., p. 47. 
j Ibid., p. 40. 
