242 



who had placed it in the Carpathian sandstone, considers it to be 

 of tertiary age, because it is associated with sub-Apennine shells, 

 and is connected with upper marine sandstone, and limestone. 



Above the blue saliferous marls is a vast extent of molasse with 

 Pectens, Ostreae, and many fossil vegetables. The beds of this de- 

 posit are highly inclined along the foot of the Carpathians. At 

 Nicholschitz and Krepitz in Moravia, and at Zazlusin and Dobro- 

 mil in Gallicia, it is represented by marly, siliceous deposits, with 

 semiopal, and fishes, as well as Hymenopterous, Dipterous, and 

 Coleopterous insects. 



The sandy banks, with Ostreee and Cerithia, which abound in 

 Moravia, Hungary and Gallicia, are referred to an age interme- 

 diate between the blue saliferous marl and the molasse just de- 

 scribed, and are considered to be older than the conglomerates 

 and coral limestone of Austria. 



The older alluvium of these districts, and particularly that of the 

 valley of the Oder, besides boulders and gravel, contains existing 

 species of fresh-water shells mixed in beds of marl with bones of ex- 

 tinct animals and fossils. 



Of basaltic rocks, the cone of Randenberg is scoriaceous, and has 

 been protruded through grauwacke. Near Barrow a felspathose 

 rock has pierced the Carpathic sandstone, converting it into jaspi- 

 deous rocks resembling those of the Giant's Causeway, and the 

 Isle of Skye, &c. 



The author refers to M. Beudant for full particulars of the tra- 

 chyte, but begs to distinguish certain trachytic conglomerates, as 

 being of aqueous origin, from the trachytic or igneous breccia. 



An original manuscript Map of all the districts described in the 

 previous Memoir of Dr. Boue, was presented by M. von Lill von 

 Lilienbach, who amongst other novelties has discovered two cones 

 of trachyte near the mercury mines, in the Carpathian sandstone 

 of Krosciensko. 



Dec. 15. — The Rev. William Turner, MA. of Christ Church Ox- 

 ford, and Trinity College Cambridge ; Anthony Todd Thomson, 

 M D., F.L.S., Professor of Materia Medica and Therapeutics in the 

 University of London ; and George Townshend Fox, Esq., F.L.S., 

 and F.Z.S. ; — were elected Fellows of this Society. 



A paper was first read, entitled "An Explanatory Sketch of a Geo- 

 logical Map of Transylvania," by Dr. Ami Bou£, For. Mem. G.S. 



The author premises that this sketch, having been written before his 

 specimens were unpacked, is necessarily incomplete, both from that 

 cause and from various impediments which obstructed his observa- 

 tions. 



Transylvania is described as being chiefly occupied by a high tertiary 

 basin, surrounded by four chains of mountains, viz.: 1. On the south 

 by the primary range of Wallachia or Taganrasch. 2. On the west 

 by another primary range, usually omitted by geographers; and 

 connected with a high calcareous chain near Kronstedt, and a ridge 

 of Carpathian sandstone near the pass Oytosch. 3. By the trachytic 

 hills separating the low tertiary and saliferous districts from the great 



