212 



Scientific Proceedings, Royal Dublin Society. 



Counties. 



Localities. 



Remarks. 



Donegal. 



Down, 



64 



89 



44 



53 

 53 

 45 



Inisheel. 



53 



45 

 39 



48 



55 

 52 

 &c. 

 44 

 45 

 45 

 45 



43 

 43 



31 



31 

 31 



21 

 6 



Derryveagh (Q artan) . 



Knochylrin. 

 Woodquarter. 

 Lough Gannon. 



Glasdruniman. 



Ardtole. 

 Gun's Island. 



Fofanny. 



Leitrim. 



Mourne Mountains. 



Ballydargan. 

 Killough. 

 Rathmullan. 

 Bathdrum. 



Moneylane. 

 Wateresh. 



Corporation. 



Tullyralty. 

 Castleward. 



Dromore. 

 Whitespoti (Conlig). 



Ballyleidy. 



Naran— Ordovieian.(?) — Lead and cop- 

 per. 



Killybegs — Ordovician. (?) — Silver-lead 

 and manganese. 



Church Hill — Cambrian . (?) : — Lead. 



Letterkenny — Ordovician. — Lead at the 

 mearing of Knockybriri and Wood- 

 quarter. Further northward tum- 

 blers of lead in Lough Gannon. 



Note. — The ages of the Metamorphic 

 Rocks in north and west Donegal are 

 undetermined ; they are probably Or- 

 dovicians and Cambrians. 



Annalong — Ordovician. — Lead and cop- 

 per. 



Ardglass — Ordovician. — Lead. At Gun's 

 Island, also, copper and barytes. 



Bryansford — Ordovician. — Lead. 



Kilkeel — Ordovician, and Granyte. — 

 Lead with, in places, copper. 



Killough — Ordovician. — Lead, with 

 barytes at Rathmullen. 



Dundrum — Ordovician. — Principally 

 lead. 



Killyleagh — Ordovician. — Lead. 



Strangf ord — Ordovician. — Lead and cop- 

 per ; also zinc at Castleward. 



Vicinity of . . — Ordovician. — Lead and 

 manganese. 



Newtownards — Ordovician. — Lead. .A 

 peculiar lode. A highly metallifer- 

 ous whinstone dyke, so rich with lead 

 that it could be profitably worked as 

 an ore. 



Crawford's burn- -Ordovician. — Lead. 



