Kinahan — On Irish Marbles and Limestones. 403 



to those in Owenglin, but with them are also found smaragdite 

 schist. The place is difficult of access ; because Grlenisky, leading 

 down to Ballynahinch, is steep and rugged. Blocks might, how- 

 ever, be run down an incline, or the marble might be worked in 

 the glen by water-power. The south end of the glen is about five 

 •or six miles from Cloonisle pier. 



In the south-east slope of Benlettery there is the small east 

 and west valley called Derrynagloan, where there is a small vein. 

 This is of easy access from the Ballynahinch road. 



Extending northward from the east end of Ballynahinch lake 

 is Grlencoaghan. Here are found, in different places, detached 

 exposures of serpentine, the largest occurring at, and southward of, 

 Bennaderreen, on the western slope of Derryclare hill. The other 

 exposures are between this and the lake. The stones are very 

 similar to those in Grlenisky. No quarry as yet has been opened ; 

 nor is there a cart road into the glen, but one could easily be con- 

 structed, which would pass by all the exposures. Canal Bridge, at 

 the mouth of the valley, is about seven or eight miles from 

 Cloonisle. 



Yeins of serpentine occur in places along the north-east portion 

 of the south-east 'shore of ] Derryclare lake, and also in the islands. 

 Here, especially in White Island, the rocks appear to be more 

 varied in colour than elsewhere, one being very peculiar, having 

 in a whitish ground long, crystal-like pieces of dark green. Most 

 of the veins are at the water level, and, if they were worked, there 

 would be a certain amount of expense in pumping. The blocks, 

 however, might be carried by water down the lake to Canal 

 Bridge, and even down Ballynahinch Lake to the river near 

 Toombeola,! where they would be only a short distance from 

 Cloonisle. 



Farther eastward, to the northward of the Recess Hotel, on 

 the south-west and north-west slopes of Lissoughter, are various 

 detached exposures of serpentine. On the south-west slope, close to 

 the village, is a quarry formerly worked to a slight extent by the 

 Martins of Ballynahinch, but much more extensively during the 

 last fifteen years byjthe Messrs. Sibthorpe of Dublin. This stone 

 is, in general, uniform, or clouded green, some being dark, but 

 at the same time translucent. Yery good-sized stones have been 

 raised, but in rough, unshapely blocks. The stone, however, is of 



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