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GEOLOGICAL MEMOIRS. 



most nearly resembles the Neocomien inferieur of Switzerland, as it 

 appears at Mont Saleve near Genf. The similarity is the more strik- 

 ing, as Terebratula multiformis, Rcem., with the Swiss T. depressa, 

 Sow., according to Von Buch, and T. sella, Sow., with the Swiss 

 T. biplicata acuta, V. Buch, form but one species. Something 

 similar occurs with the small corals of the genera Scythia, Ceriopora, 

 Manon, &c, which at some places are of very frequent occurrence 

 and are elsewhere entirely wanting. 



In the clay itself, in which the fossiliferous masses of rock are im- 

 bedded, the organic remains are limited to a few species, which occur 

 also in the Hils-conglomerate. The most common fossils are Pecten 

 crassitesta, Rcem., and Exogyra sinuata, Sow., and also a Belemnite 

 (somewhat resembling B. subfusiformis, Rasp., from the Lower 

 Neocomian), which does not occur in the lower fossiliferous rock- 

 masses. 



As the faunae of the upper and lower beds differ only in respect to 

 these Belemnites, there does not appear to be sufficient reason for 

 separating the lower fossiliferous portion from the upper beds that are 

 less rich in organic remains. The whole may be considered as a Di- 

 vision of the Cretaceous series, having a uniform fauna, and consisting 

 chiefly of a thick argillaceous deposit, towards the base of which he- 

 terogeneous rocks with accumulations of organic remains are of local 

 occurrence. 



This formation does not comprise the Upper Neocomian beds of 

 Switzerland, &c, or the Terrain Aptien of d'Orbigny. 



[T. R. J.] 



New Fossils from the Verrucano. 



A Supplemental Note to the " Considerations of the Stratigraphical 

 Geology of Tuscany," by Professors Savi and Meneghini, of 

 Pisa, appended to a Translation of Sir R. Murchison's Work 

 on the Geological Structure of the Alps, Apennines, and Carpa- 

 thians* (Now in the Press). 8vo Pamphlet, 1851. 



(Nuovi Fossili del Verrucano. 



Nota aggiunta alle Consider azioni sulla Geologia stratigrafica delta 

 Toscana, dei Prof. Cav. Paolo Savi e Giuseppe Meneghini, 

 che fanno seguito alia traduzione dell' Opera di Sir R. Murchi- 

 son sulla Struttura Geologica delle Alpi, degli Apennini e dei 

 Carpazi, che si sta pubblicando. 1851.) 



The works in connection with the cinnabar-mine discovered at Jano, 

 and which already have had the very important geological result of 

 leading to the discovery of well-preserved and recognizable impres- 

 sions of Carboniferous plants in the Verrucano f, have lately been 



* [See Quart. Journ. Geol. Soc. vol. v. pp. 157 et seq.] 

 t [See Ibid. vol. vi. p. 382, note.'] 



