Kinahan — On Irish Marbles and Limestones. 441 



These Permian rocks have not been utilized. The Cretaceous 

 are used principally for lime-burning, and so are also the Meta- 

 morphose limestones, and in a great measure the Carboniferous. 

 Limestone is not, in general, used for cut-stone purposes, as sand- 

 stones of excellent qualities occur in different places, and they 

 are usually preferred. 



Coolistown. At Railway Station. — "Various shades of grey to 

 pink and red; f ossilif erous ; crystalline; some beds compact, and 

 take a good polish. In beds from an inch to 4 feet thick. A little 

 east of the town is a limestone of a purplish-grey colour ; compact ; 

 crystalline ; works fairly. 



Broom/till. A mile north of New Mills. — A bed of hydraulic 

 limestone ; 12 feet thick proved by boring. 



Drumreagh. Three and a-half miles north-east of Dun- 

 gannon. — A thick bed of close-grained blue hydraulic limestone ; 

 under 37 feet of thin- bedded rock. 



Keeran's Cross. Three miles south-east of Pomeroy. — A thin 

 bed of light-brown hydraulic limestone. 



Castlecaulfield. — Three miles west of Dungannon. Grey ; com- 

 pact ; crystalline ; in places flaggy, or with shaly partings between 

 the beds ; works fairly well. 



The Carboniferous limestone, in general, is impure and hard to 

 burn, or gives a dark-coloured lime ; but at Cookstown an excel- 

 lent white lime is produced. 



The White Limestone in general gives a rich lime. 



In the granite to the north-west of Pomeroy, at Limehill, there 

 is a peculiar compact white limestone burned for lime, but not of a 

 good quality. 



Hydraulic limestones, as above mentioned, are found at Broom- 

 hill, Drumreagh, and Keeran's Cross. 



Watekford. 

 The Carboniferous limestone occurs nearly altogether in long 

 east and west basins — one in the Youghal valley, and another in 

 that of Dungannon, with a small tract in the valley of the Suir. 

 The limestone used in this county for dressed-stone purposes is 

 principally brought from the south portion of the county of Kil- 

 kenny, being procured in the quarries in the neighbourhood of 

 Kilmacow. 



