PROF. J. BUCKMAN ON THE MIDFORD SANDS. 743 
BracuropopA, very crushed and fragmentary. We fancy we have made out the 
following from Ham Hill :— 
Terebratula hemispherica, 
Waldheimia carinata, 
Ethynchonella concinna, 
cynocephala. 
Other forms occur in oolite blocks in the sand bed. 
LAMELLIBRANCHIATA. 
Avicula complicata. Buckm. Geol. of Cheltenham, t. 6. f. 5. 
Gervillia Hartmanni. Common on the sandy slabs. 
Ostrea bullata. Ditto. 
Marshii, Ditto. 
Hinnites velatus. Ditto. 
Pecten clathratus, 
discites, 
annulatus, >On the slabs intercalated in the sands everywhere. 
lens, 
demissus, 
Lima densipunctata and others. Ditto. 
Pinna Hartmanni. Ditto. 
ampla. The same as the Cotteswold Great-Oolite species ; sands. 
Astarte elegans. Ditto. 
pullus. Ditto. 
clathratus. Ham Hill. 
— rigida. Ditto. 
Trigonia sculpta. Bradford Abbas. 
formosa. Ditto. These forms are like those of the sands. There are 
perhaps two or three others of both the costated and clavellated forms in 
the sands. 
Isocardia concentrica. Sands. 
Modiola. Two or three forms. 
Tancredia donaciformis, Sandy stones. 
Very rare on the blocks of freestone. 
If the foregoing list be examined, fragmentary though it be, it 
will convince any one of the true Oolitic facies of the beds from 
which the fossils are derived. 
We conclude, then, from the foregoing remarks that the so-called 
Midford Sands are true Oolitic beds, not freestone at Midford, though 
decidedly so at Ham Hill, Doulting, and over a great part of the 
Cotteswolds. 
And we especially dissent from the notion that this sand bed at 
Midford or in Dorset can in any way be classed with the so-called 
Oolitic sands of some, Lias sands of others, of the Cotteswolds. They 
are, however, still confounded in our maps, though the sands below 
the freestones of the Cotteswolds are situated at least 100 feet below 
the sands of Dorset with which they have been confounded. 
Discussion. 
Mr. Hupreston agreed with the author in regarding the Cepha- 
lopoda-bed of Dorset as quite distinct from that of the Cotteswolds. 
The real difficulty, he thought, would be found in the correlation of 
the Yeoyil Sands. 
