224 PROCEEDINGS COTTESWOLD CLUB 1909 
At Leckhampton Hill, Cheltenham, between the Upper Z7igonia- 
Grit and the Upper Lias, come the Bajocian and Aalenian strata, 
which are about 194 feet thick. The Aalenian comprises the Scissum- 
Beds, Lower Limestone, Pea-Grit, Lower Freestone (the Cheltenham 
building-stone,) Oolite Marl and Upper Freestone; while the 
Bajocian connotes the ‘‘ Intervening Beds.” So at Doulting there is 
a great gap between the Upper Zrigonia-Grit and Upper Lias. 
The Doulting Stone has long been well-known in building-circles, 
but until quite recently it was not definitely known that it was on the 
same stratigraphical horizon as the CZypeus-Grit of such sections as 
that at the Horton-Rectory Quarry in the South Cotteswolds or the 
lower portion of the CZypeus-Grit of the Cheltenham district. 
In the Farmcombe Quarry, above the Doulting Beds, the Fuller’s 
Earth is very well exposed, and a certain layer near the base is 
crowded with Ostvea Knorri, Voltz. The Members obtained num- 
bers of this little oyster, and most of the brachiopods mentioned as 
occurring here in the paper on ‘‘ The Inferior Oolite and Contiguous 
Deposits of the Bath Doulting District.’”* 
After a visit had been paid to the Doulting-Bridge Quarry, or the 
“* Brambleditch Quarry,” as it is called locally, in order to get an 
idea of the considerable thickness of the Doulting Stone, the Members 
went to ‘“‘Ye Abbey Barn” for lunch. After lunch the drive was 
continued to Holwell, between Nunney and Cloford. On the way, at 
Leighton, a quarry in the Carboniferous Limestone was seen, where 
specimens of belemnites and Ostrea Knorri have been found in the 
soil above, and in fissures in, the Limestone. They are Fuller’s 
Earth fossils, and show that that rock once rested directly upon the 
Limestone, having over-stepped the Inferior Oolite. 
At Holwell, Mr Winwood acted as Director. Entering what 
has come to be known among geologists as the ** Microlestes Quarry,” 
he pointed out the position of the ‘‘ dyke ” from which Charles Moore 
obtained so many interesting vertebrate-remains, including the teeth 
of the oldest known mammal, Microlestes rheticus (Dawkins). Mr 
Winwood explained the way in which the term ‘‘ dyke” is used 
in these parts. 
Immediately below the capping of Liassic or Inferior-Oolite 
rocks, as the case may be, in this neighbourhood is the Carboniferous 
Limestone. This Limestone had been bent into a great anticline in 
pre-Keuper times. When the Rhetic came to be deposited it so 
happened that there were fissures in the Limestone into which organic 
remains of the epoch were washed. These fissures widened and 
new ones were produced in Liassic times with the same result, 
namely, a sweeping-in of the organic remains of the epoch. In some, 
but less frequently, Inferior-Oolite fossils are found. They were 
probably washed in about the time of the Bajocian flexuring and 
erosion, or possibly a hemera or so later, when that beautiful planing 
and boring of the Carboniferous Limestone was effected. When, 
1 See also Geol. Mag., 1908, pp. 509-517. 
