Remams in the Oolite Series of England and France. 257 



Of the 61 species of fossil shells enumerated in the York- 

 shire great oolite, 7 occur in the lists of Mr. Conybeare and 

 Mr. Sowerby : and of these, 6 are mentioned in the cornbrash, 

 1 in the forest marble, 1 in the Bradford clay, and 1 in the 

 great oolite. Of the 61 species, 3 are stated to occur in the 

 forest marble of Calvados, and 1 is found in the cornbrash 

 and forest marble of the North of France. Melania striata 

 is marked questionable in the great oolite of Yorkshire and 

 in the Mauriac beds. 



Of the 7 species noticed in the great oolite of Calvados, 3 

 occur in Mr. Conybeare's lists, 2 in the cornbrash, 1 in the 

 forest marble, 2 in the Bradford clay, and 2 in the great 

 oolite. None are mentioned either in Yorkshire or the North 

 of France. 



Of the 9 species contained in the white marls of the North 

 of France, supposed equivalent to the Bi'adford clay, 4 occur 

 in the lists of Mr. Conybeare and Mr. Sowerby, 2 in the 

 cornbrash, and 3 in the Bradford clay. Of the 9 species, 3 

 are found in the forest marble of Calvados. None are men- 

 tioned in Yorkshire. 



Of the 2 species noticed as characterizing the great oolite 

 of the North of France, 1, Ostrea acuminata, is mentioned as 

 found in the Bradford clay of Mr. Conybeare's lists, but is not 

 noticed either in Calvados or Yorkshire. 



Of the 3 species of shells, exclusive of Belemnites, in the 

 fuller's earth of the North of France, 1, Terebratula media, 

 is found in the same rock in England (Conybeai'e). 



Of the 12 species enumerated in the Mauriac beds, 5 are 

 found in the other localities, 2 being questionable : of these, 2 

 occur in the Yorkshire cornbrash, 1 being questionable at 

 Mauriac ; 1 is marked doubtful both in the Yorkshire great 

 oolite and the Mauriac beds ; 2 occur in the cornbrash and 

 forest marble of the North of France, and 1 in the forest 

 marble of Calvados. Of these 12 species, 2 are found in Mi*. 

 Conybeare's lists ; 1 in the cornbrash ; and 1 in the cornbi'ash, 

 forest marble, and Bradford clay. 



By considering the cornbrash, forest marble, Bradford clay, 

 great oolite, and fuller's earth, as a mass in which sometimes 

 divisions can be made, while at others none can be observed, 

 the most common fossils would appear to be fish teeth and 

 palates, Clypeus clunicularis, Belemnites, Pectcn fibrosus, 

 Avicula ecliinata, Terebratula subrotunda, T. digona, T. 

 coarctata, numerous polypifcrs, and the Bradford encri- 

 nite. 



The following is a list of the fossils from the celebrated 

 Stonesfield slate, which belongs to the division under conside- 



N. S. Vol. 7. No. I-O. /Ipril 1830. 2 L ration, 



