Reviews — Meyer's Catalogue of Tertiary Fossils, 139 



"Helvetien" stage. Mayencien ii. b. becomes Helvetian i. ; Helv6- 

 tien ii. and iii., H. i and ii., for all the localities quoted, except those 

 of the hill of Turin, which remain at the level of the Manthelan 

 beds (Kio della Batteria, Villa Eoassenda, lower Baldissero), or at 

 that of the Serravalle beds (Termo-Foura, Pino, upper Baldissero). 

 The beds with large Lucinae, of Pino, Stazzano, of Monte-Baranzone 

 near Modena, are the Italian representatives of the Leitha lime- 

 stone. 



"The new stage which, in agreement with M. Seguenza, I propose 

 to intercalate is in every respect most interesting. First it fulfils 

 exactly, both by position and fauna, the middle place betwixt the 

 Miocene and Pliocene which was wanted, to demonstrate the useless- 

 ness of such distinction. It presents at the same levels extended 

 salt, brackish, and fresh-water deposits. Lastly, it connects together 

 a number of deposits whose places had not been determined, such 

 as the brackish water beds of the Danube basin, and the upper fresh- 

 water Mollasse of Switzerland. It is to the middle stage that M. 

 Heer gave the name of that of '' CEningien ; " it is to its lower level 

 that the Sarmathian stage of M. Suess is to be referred ; and it ii 

 for its thick marine beds of the neighbourhood of Messina that M, 

 Seguenza would propose the name of the Zankleen stage. Sepa- 

 rated from the Astien stage, such as I had at first proposed it, the 

 Missinien stage comprises 3 levels. 



" 3. The Epplesheim beds, including the pebble beds of the 

 Tortonias and of the Plaisantin. The sands and pebbles 

 with Dinotherium of the valleys of the Danube, the Jura, 

 and the Ehine, and the corresponding beds in the S.W. of 

 France. 

 " 2. The Dreissena (Congeria) beds of the Danube valley, and of 

 Kertch, the region of the upper gypsum beds of the N. Apen- 

 nines, the upper fresh- water Mollasse of Switzerland. 

 " 1. And lowest, the Billowitz beds, those with Cerithia and 

 Mactra Podolica of the Danube valley and Eussia. The 

 marls with Cerith. of Stazzano and St. Agate near Tortona. 

 The white, sandy and micaceous Mollasse of the North of 

 Switzerland. 

 " The Marine marls of Messina, their great thickness considered, 

 are the probable equivalents of the whole of these three levels." 



Geological Society of London. — I. — January 8, 1868. — 1. 

 " Notes on the Lower Lias of Bristol." By W. W. Stoddart, Esq., 

 F.G.S. 



Three sections in the suburbs of Bristol were described by the 

 author, as exhibiting the following strata in descending order, 

 namely, at Ashley Down, (1) Ammonites-costatus bed, (2) Saurian 

 bed, (3) Ammonites- Conyleari bed (commencement of the zone of 

 A, Bucldandi), and (4) Lima-beds; the succeeding beds are covered 

 up for a short distance, and then, in Montpelier quarry, are exposed. 



