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pared with the calciferous district of Kent, from the coast to the 

 west of Maidstone. No continuous beds of limestone occur in the 

 Atherfield section ; while the Kentish rag in the quarries at Hythe 

 and Maidstone cannot be far short of a hundred feet in thickness. 



§. Sundown Bay. — A section corresponding to that of Atherfield, 

 is visible on the east of Sandown Bay, between the fort and the 

 chalk of Culver Cliff. The author had formerly seen there a bed 

 of concretional stone immediately above the Wealden and subjacent 

 to a bed of fuller's earth ; and on examining the place recently, in 

 company with the President (Mr. Warburton), the resemblance of 

 the two sections was confirmed, and some of the Atherfield fossils 

 obtained from the Sandown bed. The President has since been 

 there alone, and has been very successful in obtaining from the stony 

 masses exposed at low water, specimens of the most characteristic 

 fossils, especially of Perna Mulleti, with some new species of other 

 genera: — Panop(Jza,Astarte Beaumontii (Leymerie), Gervillia anceps}, 

 Perna Mulleti, Perna almformis, Sphtsra corrugata} .Sphcera (new sp..?), 

 Grypheea sinug,ta, &c. Beneath this bed at Sandown Bay, as at 

 Atherfield, is a thin stratum of marine fossiliferous clay. 



§. Since the recent examination of the coast at Atherfield, the 

 author has obtained information respecting the corresponding strata 

 in some other places. — 



Surrey. — Mr. Murchison, in crossing the section of the lower 

 greensand, exposed by the cuttings on the Dover railway, near 

 Redhills in Surrey, perceived that the junction of the greensand with 

 the Wealden must have been traversed near that place* ; and having 

 mentioned this observation to the President and Dr. Buckland, these 

 gentlemen were so fortunate as to detect there several large con- 

 cretional masses, brought out during the progress of the works, and 

 evidently corresponding in situation with those of Peasemarsh dis- 

 covered by Mr. Austen. This latter gentleman, with the President 

 and the author, have since visited the place again ; and from these 

 united labours a collection has been obtained, including some of the 

 most characteristic of M. Leymerie's Neocomian species, with a few 

 belonging also to the quarry-stone of Hythe. — Area Raulini, Pano- 

 pcea depressa, Pholadomya acutisulcata (Leymerie), Pecten obliquus 

 (interstriatus) , Pinna sulcifera, Gervillia aviculoides, Perna Mulleti, 

 P. alceformis , Trigonia dcedalea, T. Fittoni, Gryphaea sinuata. Nau- 

 tilus radiatus. 



Vicinity of Pulhorough, Sussex. — Mr. Martin, of Pulborough, has 

 mentioned the occurrence at Stopham brickyard (where the junction 

 with the Wealden was to be expected), of certain fossils, in abed of 

 clay at the bottom of the lower greensand. A collection of these, 

 which he has recently sent to the author, includes Area Raulini, Pho- 

 ladomya acuticostata, Panopcea plicata, Pleurotomaria giganiea, Os- 

 trea carinata, Nautilus radiatus, fossil wood with Gastrochana., 

 vertebrae and skin of a Lamna. 



* The precise spot is on the top of the southern bank of the railway, 

 south-west of a bridge over which a road crosses to Roberts-hole farm, of the 

 Ordnance map. 



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