KiNAHAN AND Baily — Report on Bocks, 8fc. 499 



Cork), and unconformably in the country to the IST. E. (south-east 

 Kerry and north-east Cork), 



Commeraglis ( Waterford). — In these mountains are conglomerates 

 very similar to those of Toormakeady and Croagh Moyle, which were 

 supposed by Kelly to be of similar age. They are possibly the littoral 

 accumulations of the Silurians of "West Cork (Griengariff grits). They 

 rest unconformably on the unaltered Cambro- Silurians, while they 

 seem to be covered unconformably by rocks of Carboniferous age. 



SrLTJUiAN- Etieites. 



These rocks and their associates are characteristic of the "Lower 

 Old Eed Sandstone," not only of Ireland, but also of Scotland. The 

 Irish rocks are not all on the same geological horizon. It may be 

 possible that they are the results of two periods of active vulcanicity, 

 and, for the present classification, it may be supposed such was the 

 case, and that they belong to two different zones. 



Upper JEtirite Zone. 



Fintona District. — Eurites, tujffs, and calcareous rocks, at Altmore 

 and JS'.E. of Fintona. The eurites and limestones eastward of Six- 

 mile-Cross seem to be older than, while the eurites near Ballygawley 

 seem to be of the same age as, those eastward of Six-mile-Cross. 



Curlew Mountain District. — Tuffs and calcareous rocks of the 

 country between Loughs Key and Grara. IS'ear Ballaghaderreen, eurites, 

 tuffs, and limestone. 



Nortli-ioest Galwmj. — The bed of eurite in the " Salrock slates" 

 of the hills south of Leenaun ; limestones at Dernasliggaun and Eossroe ; 

 and the newer eurites in the Kilbride promontory (Lough Mask). 



West Kerry. — Eurites and tuffs, Yalencia Harbour. 



East Kerry. — Eurites and tuffs of Glenflesk, Lough Gitane, and 

 the Horse's Glen (Mangerton). 



Lower Eurite Zone. 



Croagh Moyle District. — The limestones at the base of the Silurians. 



Toormakeady District. — Eurites, tuffs, and limestones, at the base 

 of the conglomerates. 



Formnamore. — Eurites at the base of the group. 



Louyhnafooey . — Eurites and limestone in the vicinity of Loughna- 

 fooey ; oldest eurites and tuff of the Kilbride promontory (Lough 

 Mask) ; eurites of Rinavore (Maum Valley). 



Mioeelrea District, — Eurites at the base of the Silurians. 



Culfin. — Eurites of Benchoona and of the hills to the eastward. 



Dingle Promontory. — Eurites and tuffs in the ''Eerriter's Cove 

 series." 



K.I.A. PROC, SER. II. VOL. III. — SCIENCE. 2 T 



