EXPLANATIONS OF TABLES AND LIST OF LOCALITIES. 251 



occupy the greatest surface ; they form there a wide sub-parallel band of nearly one 

 hundred miles in length by some fifty in breadth, extending from the northern portion of 

 the Frith of Forth to the Clyde, and as far as the extremity of Cantyre. No portion of 

 the system appears to have been discovered in the north : but in the south there exists a 

 narrow band, or separate patches, which extend along the frontiers of Scotland and 

 England, from Berwick to near Kircudbright, on the Solway Frith. 



Scottish Carboniferous deposits differ, however, from strata of a similar age, existing 

 both in England and Ireland, in the manner in which the various beds of encrinal and 

 coralline limestones are intercalated with coal-beds and bituminous schists in the lower 

 parts of the system. In no single locality do we find a section in which all the beds occur 

 in regular and uninterrupted succession ; the absence of some or the thinning-out of others 

 constitute local differences which may always be expected and duly considered. Thus in 

 Lanarkshire generally, as well as in other parts of the Clydesdale coal-field, the Car- 

 boniferous strata have been divided into four principal groups, viz. — 1. The Upper Coal 

 series. 2. The Upper Limestone series. 3. The Lower Coal measures. 4. The Lower 

 Limestone series. In all but the Upper Coal series Brachiopoda have been found ; 

 they appear, however, more numerous in the second and fourth divisions. 



At p. 6, we alluded to David Ure's valuable work published in 1793, in which twelve 

 species of Carboniferous Brachiopoda have been described and figured; and it would appear 

 from an extract taken from George Crawford's ' History of Renfrewshire,' that in the 

 beginning of last century there was a collector of fossils (the Rev. Robert Wodrow, who 

 died in 1757) in Renfrewshire, and that though Ure was the first that figured and 

 described Scottish fossils, he was not the first upon record that collected them, and indeed 

 from their great abundance one cannot feel surprised that they should have attracted some 

 notice, although they could not be understood at a period prior to the introduction of the 

 science of Palaeontology. 



List of Localities in Scotland where Carboniferous Brachiopoda have been found. 

 Lanarkshire. 



Belston Place Burn 

 Belston Place Burn 

 Gare Limestone 



Westerhc-use 



Bashaw . 



Whiteshaw 

 Belston Burn Limestone 



Maggy Limestone 



Brocks Hole 



Below Whiteshawbridge 



Near Chapel 



32 



Distance and direction 

 from Carluke Church. 



Stratigraphic position 

 below the Ell coal. 



Nature of strata. 



li 



miles 



N. 



160 fathoms. 





Slaty ironstone. 



li 



)> 



N. 



173 



yy 





Ironstone shales. 



2 



»> 



N.E. 



239 



s> 



1 





3 



11 



>> 



E.N.E. 



N.E. 







Old shale heaps. 



i 



* 



n 



W. 







J 





i 



>> 



N.E. 



265 

 300 



5? 





Limestone and shales 



1 



»J 



E. 







1 

 ) 





1 



>> 



W. 







Ironstone and shales. 



2 



)' 



S. 









