every respect the beds which are so well developed on the same horizon in the Isle of Wight; and the following fossils are recorded from them by Dr. Fitton.
Cypridea tuberculata, Sow., sp. -valdensis, Sow., sp. Melanopsis attenuata, Sow., sp. tricarinata, Sow., sp. Cyrena media, Sow., sp. membranacea, Sow., sp. Cardium ?, sp. Ostrea, sp.
These beds have been regarded by some geologists as the greatly attenuated representative of the Weald Clay.
B. A series of more or less ferruginous sands passing "down-wards into interlaminated sands and clays with some seams of lignite, and containing in its middle portion several bands of ferrugineo- calcareous rock, with oysters and other marine shells. This series of beds, which is about 153 feet thick, greatly resembles, in many of its characters, portions of the Bagshot series and of the Northampton Sand. It was in these beds that Professor John Phillips obtained the fossil fruit which he described before this Society in 1858 *.
The oyster-beds cannot be conveniently examined in situ, as they are exposed in a very inaccessible part of the cliff ; but facilities for collecting their fossils are afforded by the great slipped masses which lie lower down and nearer the shore. They consist of sandy iron- stones, in places becoming calcareous from the abundance of oysters and other shells, and appear to be very irregular in
- Quart. Journ. Geol. Soc. vol. xv.
p. 46.
