124. 
Buckfastleigh, and Dean, near which the limestone ends; but the 
calcareous slate and limestone of the south of Cornwall, Mr. Austen 
considers to be of the same age. ‘These beds dip south. 
ord. Fine-grained schists and roofing slates. 
4th. The Plymouth limestones, which cannot be traced west- 
ward further than Whitesand Bay, but to the eastward they are 
considered by Mr. Austen to be represented by the limestones of 
Dunwell, Shilstone, Ugborough, Fowley-cumber, North Huish, Sto- 
verton, Great and Little Hampston, &c. 
5th. An arenaceous deposit, often coarse and resembling old 
red sandstone ; but sometimes conglomeratic, and then not distin- 
guishable from the new red of Devonshire. Its upper conglomeratic 
portion ranges from Plymouth Sound and Bigbury Bay, to Modbury 
and Blackdown; its lower portion cuts the Dart a little below Tot- 
ness, and rises into lofty hills, east of a line passing through Berry 
Pomeroy, Marldon, Cockington, and Barton. It contains limestone 
south of Yealmpton, and at Sequers Bridge; also several thin 
bands on the Dart, and beds at Berry, Marldon, Collaton, and Yal- 
berton. Organic remains are not uncommon in this arenaceous di- 
vision. Only the fine-grained beds show a slaty cleavage. The 
limestone is confined to its northern limit, and has a southwardly dip ; 
but all the lines of roofing slate are to the southern with either ver- 
tical or northern cleavage dips. As the intermediate country about 
Modbury presents many undulations, Mr. Austen suggests that the 
slate beds of the south may be the equivalents of the limestone on 
the north; in which case the passage downwards into the mica slate 
and gneiss of the Prawle Point may be the equivalents of No. 4, ina 
metamorphic condition. 
6th. The limestones of Torbay, &c., which are said to constitute 
the newest deposits of the series, not being covered by any formation 
into which they pass. 
The carbonaceous rocks of central Devon are stated by Mr. Austen 
to form no part of the above system, but to rest upon it uncon- 
formably. 
May 8.—Thomas Griffin, Esq., of Cheltenham; John Griffith, 
Esq., Finsbury-place, South ; and Robert Fitch, Esq., of Norwich ; 
were elected Fellows of this Society. 
An extract from a letter addressed to Mr. Murchison by Mr. Miller 
of Cromartie, was first read. 
The fish beds in the old red sandstone of the neighbourhood of 
Cromartie, are very extensive. They are overlaid, where not denu- 
dated, by a thick stratum of soft yellow sandstone; and are under- 
laid by a deposit consisting of red sandstone, containing in the middle 
a chocolate-coloured conglomerate, similar to that of the Findhorn. 
The bold cliffs of the Moray Frith present fine sections of the old 
red, including the fish beds. ‘The letter is accompanied by illustra- 
tive drawings exhibiting the succession, range, and dip of the strata. 
Mr. Miller gives also an account of a series of faults in the Burn of 
Ethie, one of which, he conceives, may be traced nearly north to the 
town of Cromartie. 
