Geological Society. 



land, some of them fifty feet and more above high-water mark, con- 

 taining shells similar to those found living in the neighbouring sea. 

 June 26. — The following papers were read : — 



1. " Notice of the Tertiary Deposits in the South of Spain." By 

 Mr. Smith of Jordan Hill. 



The author has found a tertiary deposit bordering the Bay of 

 Gibraltar. This agrees in its fossils with those observed by Colonel 

 Silvertop in Murcia and Granada. Mr. Smith has found similar 

 beds at Cadiz, and between Xeres and Seville. All these deposits 

 agree with those of Malta and Lisbon, and belong to a great expanse 

 of miocene tertiary, which runs from Greece to the Straits of Gibral- 

 tar, and the shores of Portugal, and from Malta to Vienna. 



2. " On the Stonesfield Slate of the Cotteswold Hills." By Mr. 

 Buckraan and the Rev, P. B. Brodie. 



The Stonesfield slate in the Cotteswold range occupies an area of 

 more than fifty miles. It is identical in lithological and palseonto- 

 logical characters with that at Stonesfield. It is so intermixed with 

 as scarcely to be separable from the ragstone, and hence the authors 

 conclude that it is a part of the great oolitic formation, and was de- 

 posited by the same sea in which the great oolite itself was formed, 

 and owed its origin to certain mixed conditions arising from the in- 

 flux of rivers into an ocean interspersed with numerous scattered 

 islands, abounding with a luxuriant vegetation, and inhabited by 

 numerous terrestrial animals ; which view, they hold, is borne out 

 by the quantity of plants which occur throughout the Stonesfield 

 slate beds, and also from the relics of land animals, such as the Di- 

 delphis and Pterodactylus. The clays which lie upon the slate may 

 possibly represent the Bradford clay, or if not, are the equivalents of 

 certain clay beds, containing Apiocrinites, which in Wiltshire separate 

 the firestone from a lower stratum of freestone of a coarser texture. 



3. " Description of a Fossil Ray from Mount Lebanon." By Sir 

 Phihp Grey Egerton, Bart., M.P. 



The author describes a new and most remarkable fossil fish brought 

 from Syria by Capt. Graves, R.N. It is a true ray, much resembling 

 those of the present period, but entirely surrounded by a broad flexi- 

 ble cartilagino- membranous fin. The skin appears to have been 

 smooth, and there are no traces of dermal spines, tubercles, or de- 

 fensive weapons. From its apparent helplessness. Sir Philip Eger- 

 t<m conjectures that it was probably armed like the torpedo, to which 

 it is in some respects allied, with an electrical apparatus. He names 

 it Cyclohatis oligodactylus. 



4. " Description of some New Species of Fossil Fish, from the 

 Oxford Clay of Christian-Malford." By Sir Philip Grey Egerton, 

 Bart., M.P. 



Three new species are described in this communication, the Lepi- 

 dotus macrochirus , the Leptolepis macrophthalmus, and the Aspidorhyn- 

 chus enodus. They were procured by the Marquis of Northampton 

 and Mr. Pratt. 



5. " On certain Calcareo-corneous Bodies found in the Outer 

 Chambers of Ammonites." By Mr. H. E. Strickland. 



