•608 Scientific Proceedings, Royal Dublin Society. 



guinna and Long field t where most of the stones used in the building 

 of Baronscourt were procured ; and Drumquin, west of Omagh. 

 In these quarries the stones 'are more or less similar to those of 

 Cookstown. From the Drumquin quarries were procured the stones 

 for the pillars in the Omagh Courthouse. 



At Coohstoicn, Drumquin, and CarricJcmore, especially the latter, 

 flagging has been procured for the neighbouring towns. 



Calp. — These rocks occur to the north of the Coalisland- 

 Coalfield, and in tracts of less or greater dimensions in the 

 county, west and south-west of Dungannon. As pointed out pre- 

 viously, they are in some respects similar to the rocks of the 

 Slieve-Beagh district. 



Bloom Hill. About four miles north of Dungannon, and three 

 from the Donaghmore Station, Great Northern Railway. — Two 

 quarries, of different qualities and colour. Creamy, greyish- white, 

 and reddish-yellow ; the latter, or Red-beds, being inferior. Prin- 

 cipally silicious-grained, very little cement, fine-grained. Some 

 beds, especially the reds, are in part argillaceous and micaceous or 

 ferriferous. Mr. Hardman states : — " The stone much resembles 

 that at Gortnagluck and Carlan (presently mentioned), is equally 

 good for building purposes, and has been much used." — [G. S. M.) 

 It has been much used in Dublin and other places. In the 

 Belfast banks, Donegal and Ballyshannon, it has been found 

 very durable. 



Gortnagluck and Carlan. About half a mile apart, and appa- 

 rently on one set of strata, about two miles from the Donaghmore 

 Station, Great Northern Railway. — Of slightly varied colour and 

 quality ; creamy, yellowish, greyish, white and reddish — the Red- 

 beds being inferior. Silicious-grained ; very little cement ; slightly 

 micaceous and ferriferous ; cuts freely and well ; can be raised of 

 good scantlings ; gets hard from exposure, and is durable when 

 worked on its bed. It is a favourite for cut-stone purposes in 

 Ballymena, Co. Antrim, where it is considered the best of the 

 "Dungannon stone;" the Belfast people, however, seem to prefer 

 the Eanfurly (Mullaghana) stone. It was used for all cut-stone 

 purposes in Raveagh House, near Fintona ; Convent of Mercy, 

 Ballyshannon, Co. Donegal ; Roman Catholic Church, Maghera- 

 felt, Co. Deny; Harbour Offices, Londonderry; and in various 

 other places. 



