50 Geological Society. 



which mark the fossils of the younger tertiary groups, prove that it 

 must be ranked with the most ancient deposits of that series. 



In the basins which have been best examined, there is an entire 

 break between the secondary and tertiary groups. But the great 

 mechanical agents which in these localities have elevated and ground 

 down the secondary rocks, before the commencement of the tertiary, 

 may not have acted universally. There is therefore reason to expect 

 in distant localities new groups of rocks by which ihis break may be 

 filled up ; and by help of which it will perhaps be found that the 

 newest secondary rocks and the oldest tertiary, graduate finally into 

 each other. 



Nov. 20. — J. R. Gowen, Esq. of Highclere, near Newbury, and 

 William Holbech, Esq. of Farnborough, Warwickshire, were elected 

 Fellows of this Society. 



The reading of a paper, " On the Tertiary Formations which range 

 along the Flanks of the Salzburg and Bavarian Alps," being in con- 

 tinuation of the memoir On the Valley of Gosau, by the Rev. Adam 

 Sedgwick, Pres. G.S. F.R.S, &c., and Roderick Impey Murchison, Esq. 

 Sec. G.S. F R.S. &c. was begun. 



Dec. 4. — Nicholas Dennys, Esq. of Cambridge Terrace, Regent's 

 Park ; John Willimott, Esq. of Jermyn-street, St. James's ; William 

 Higgins, Esq. of Coggeshall, Essex j and Edward Spencer, Esq., of 

 Highgate, were elected Fellows of this Society. His Imperial High- 

 ness the Arch-duke John of Austria; Professor Hausmann, of Got- 

 tingen ; M. Hoffmann, of Berlin ; M. Voltz, of Strasbourg ; M. Du- 

 frenoy, of Paris ; and Dr. Ami Boue, were elected Foreign Members 

 of the Society. 



The reading of the paper by the Rev. Adam Sedgwick, Pres. G.S. 

 F.R.S. &c., and Roderick Impey Murchison, Esq. Sec. G.S. F.R.S., 

 he. begun at the last meeting, was concluded. 



The authors, having in a former communication described the great 

 relations of the tertiary formations on the north flank of the .'\lps to 

 the older part of the chain, proceed in this paper to confirm their 

 conclusions by a series of detailed transverse sections, commencing 

 with the hills near the foot of the Traunsee, and ending with the 

 lofty hills of molasse and conglomerate near the Lake of Bregenz. 



1 . Section at the foot of the Traunsee. — The tertiary formations here 

 commence on the north side of the Traunstein ; and the lower beds 

 are described as being chiefly argillaceous, of a great thickness, and 

 in a highly inclined position. They contain some of the Gosau fos- 

 sils, and in their prolongation form the base of a hill 1800 feet high, 

 composed of alternat'ng beds of sandstone and of sandy marl. This 

 whole system is surmounted by great alternating ma.sses of conglo- 

 merate, sandstone, and marl, forming a succession of parallel ridges 

 in the country north of Gmunden ; and still further towards the north, 

 and in a higher part of the series, are beds of lignite. 



2. Section of Salzburg. — Great parallel ridges of conglomerate 

 and sandstone extend at the foot of the higher Alps, from the denu- 

 dation of the Traun to that of the Salza. The conglomerates rest- 

 ing immediately on the older limestone, re-appear on the left bank of 



the 



