232 



Scientific Proceedings, Royal Dublin Society. 



Counties. 



Localities. 



Remarks. 



Cork. 



Donegal. 



Down. 



Galway. 



107 

 & 



108 

 67 



146 



20 



15 Marfagh. 



66 & 

 67 



£7 



35 & 

 36 



36 



62 



28 



45 



34 



34 



28 & 



35 



Demesne. 



Fever Hospital. 

 Kilcrohane. 



Carrowmore, or Glen- 

 togher. 



Scraig's Mountain. 



Carlan. 



Goldrum and Cash- 

 eleenan. 



Ballyscanlan (Fern 

 Hill). 



Fycorranagh. 



Spa Cottage. 

 St. John's Point. 



Lisnasliggaun. 



Tanvally. 



Finnisbridge. 



Dunmanway — Devonian (?) — Said to be 

 mundic, or poor ore. 



Youghal — Devonian (?) — Strong spa. 



Crookhaven — Devonian. — Thick lode 

 sulphur ore with copper. 



Carndonagh — Ordovician, or Cambrian. 

 Sulphur, silver-lead, and zinc. 



Dunfanaghy — Cambrian, or Ordovician. 

 Sulphur, copper, lead, and iron. The 

 lode was principally worked for the 

 lead. 



Fintown — Ordovician, or Cambrian. — 

 Sulphur, lead, and zinc. 



. — Very strong, 



Carrowkeel — Or 

 large, reddish spas 



Kilmacrenan — Ordovician (?) — N. 10 W. 

 lode, 3 feet wide ; in part flucan, and 

 in part quartz, with coppery sulphur 

 ore ; underlying eastward at 75°. Also 

 a N. 20 E. quartz lode, with coppery 

 stains and strong coppery spa. 



Millford — Ordovician. — A nearly N. and 

 S. line of strong spas. 



Letterkenny — Cambrian (?) — Strong, 

 reddish spas in the glen at the north- 

 western boundary of the townland. 



Note. — In the metamorphic rocks (Ordo- 

 vician, arCambrian) there are numerous 

 spa springs ; some are solely due to 

 the leaching of the iron (carbonate ?) 

 out of the rocks ; but when in lines 

 along a line of break, or dyke, they 

 may possibly point to mineral lodes. 



Ballynahinch — Ordovician. — Iron spa. 



Killough — Ordovician. — Sulphur and 

 copper. 



Banbridge — Ordovician. — Iron spas. 



Note. — For sulphur ore in the Co. 

 Galway Carboniferous limestone see 

 Lead and Copper lists. 



