414 Scientific Proceedings, Royal Dublin Society. 



Carlow. 



In this county the greater portion of the Carboniferous lime- 

 stone is a dark iron-grey dolomyte, of a frail nature. Near the 

 town there are limestones of the Calp type, some of them being in 

 good blocks. The quarries in the latter locality have been worked 

 more for the marble than for building-stones. These quarries 

 have been already mentioned (see Black Marbles). 



Broionhill. A mile north-east of Carlow. — The stone in general 

 is dolomyte, full of drusy cavities (geodes) ; but one bed, between 

 4 and 5 feet thick, consists of grey, compact, and fine-grained 

 stone, capable of being dressed. 



In general, the limestone of the county burns into excellent 

 lime. 



Cavan. 



Yery little good limestone for building purposes can be ob- 

 tained, except at the extreme south of the county, near Lough 

 Sheelin. Formerly some quarries were open here, but now all 

 stone is procured from the Ross Castle quarry, close by, in the 

 ■Co. Meath. Near Cavan some small quarries have been opened, 

 but the stone is not generally valued for tool- work. 



Belturbet. — Light to dark-grey, fine, crystalline, but splintery ; 

 thick and thin-bedded. Tools fairly. From this vicinity were 

 procured the stones to build Crom Castle, on Lough Erne, Co. 

 Fermanagh. 



Mount Nugent.— -Quarries were formerly worked in this vicinity 

 on a stone of good quality. They are now closed up, as all stones 

 required can be more easily obtained from Ross Castle, Co. Meath. 



A fair, strong lime is made from the Cavan limestone. In the 

 southern portions of the county most of the lime is procured from 

 the neighbouring counties. 



Clare. 

 Throughout most of the barony of Burren and in the country 

 near Ennis, there are large tracts of bare rock. The stone is of 

 the Burren type, and is, in general, of excellent quality; but some 

 beds are much cut up by joints; others, however, are not, and 

 from these stones of great dimension can be procured. As the 



