70 
to examine the section opened up between Andoversford and 
Bourton-on-the-Water. Starting from the 
ANDOVERSFORD STATION 
the party proceeded to examine the geological sections exposed 
in the railway cuttings between Andoversford and Notgrove. 
There are several cuttings varying from 15 to 36 feet in depth: 
they pass through Inferior Oolite, Fuller’s Earth, Stonesfield 
Slate, and Great Oolite, and present a sequence of strata 
without comparison in the Cotteswolds. The sections commence 
with the beds which cap Leckhampton Hill, and comprise all 
the succeeding strata of the several formations before men- 
tioned. Each formation was identified by its fossils or its 
petrological structure and position. The Gryphite bed, with 
“ Gryphea sublobata,” and the “Trigonia” grit with casts of 
“ Trigonia signata,” were seen in position; but the succeeding 
“‘Clypeus”’ beds proved from their wealth of fossils the most 
attractive—< Clypeus Plotii” (Kirn) studded the face of the 
section with its bun-like form: the broken stone used for 
ballasting the railway contained scores of specimens, though 
perfect examples were rare. The ‘“Clypeus” grits in the 
deep cutting west of Notgrove are about 20 feet thick, and 
contain in addition to “C. Plot” the usual fossils of the 
bed, amongst which “ Pholodomya Heraulti”? (Ac.;) ‘ Homo- 
mya gibbosa” (Sow.;) and ‘‘ Myacites subelongatus” (AG. 5) 
were amongst the most abundant. The “ Fuller’s Earth,” 
though greatly diminished in thickness, was seen with the 
underlying and overlying formations in the same _ section. 
This is the only instance of the kind in the Cotteswolds; it was, 
therefore, examined with great interest. The hard bands 
which characterise the formation were noticed, but were found 
to be more than usually sterile. The small oyster “ Ostrea 
acuminata” (Sow.) of which these bands are frequently 
composed, was rather rare, but “ Ostrea Sowerbyi” was in 
some of the layers very abundant. The “Stonesfield Slate” 
was of the usual character: in certain beds it was sandy and 
fissile, in others hard and full of shelly detritus and small 
ee ~ 
