THE 



aUARTEELY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OE LONDON. 



PROCEEDINGS 



OF 



THE GEOLOGICAL SOCIETY. 



January 21, 1863. 



Edward Brooke, Jim., Esq., Oakley House, Edjerton, Huddersfield ; 

 John Brunton, Esq., C.E., Engineer of the Seinde Railway; Alfred 

 Hewlett, Esq., Mining Engineer, Haigh, Wigan ; Thomas Wardle, 

 Esq., Leek Brook, Leek, Staffordshire ; and George Worms, Esq., 

 17 Park Crescent, Portland Place, were elected Fellows. 



The following communications were read : — 



1. On the Upper Silurian Passage-beds at Linley, Salop. 

 By George E. Roberts, Esq., and John Randall, Esq. 



[Communicated by the President.] 



A zone of thin-bedded, often conglomeratic, sandstones, forming the 

 passage-bed between two great formations, is frequently found to 

 include within its series of deposits one or more bands of shell- or 

 bone-breccia. Perhaps the most important of these zones is the 

 one which lies between the mudstones of the Upper Silurian series 

 and the lowest Old Red Cornstone, the most northerly extension of 

 which forms the subject of this paper. This, from the number and 

 variety of its organic contents, may almost be called a formation by 

 itself. The continuance of Silurian forms of life is, however, too 

 strongly marked to permit any division of it from that great series 

 of deposits. On the other hand, its uppermost layers are allied, by 

 physical constitution and fossil contents, so nearly with the overlying 



VOL. XIX. PART I. R 



