﻿THE 



QUARTERLY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OF LONDON. 



PROCEEDINGS 



OF 



THE GEOLOGICAL SOCIETY. 



February 5, 1851. 

 James Inglis, M.D., was elected a Fellow. 

 The First Part of the following communication* was read : — 



On the Silurian Rocks of the South of Scotland. By Sir 

 Roderick Impey Murchison, G.C.St.S., F.R.S. G.S. L.S., 

 Hon. Mem. R.S. Edinburgh, R.I. Ac, Mem. Imp. Ac. Sc. St. 

 Petersburgh, Corr. Mem. Ac. France, Berlin, Turin, Copenhagen, 

 &c. &c, and President of the Royal Geographical Society, London. 

 With a List and Description of the Silurian Fossils of Ayr- 

 shire. By J. W. Salter, Esq., F.G.S. 



Introduction. 



The rocks of the South of Scotland, to which attention is directed in 

 the ensuing pages, have been more or less described by many of my 

 predecessors and contemporaries. They constitute the greywacke and 

 clay-slate of earlier geologists ; and a few organic remains in their 

 associated limestone did not escape the observation of Huttonf . 

 At that period, however, these few and rare organisms could not 



* Part Second was read on February 26, 1851. 



f Theory of the Earth, vol. i. p. 333. For their structure, see Prof. Jameson's 

 first delineations of the S. Scottish Rocks, Memoirs Wernerian Nat. Hist. Soc. 

 VOL. VII. PART I. L 



