Kinahan — On Granite and Metamorphic Rocks. 197 



" Edward's quarry" (opened by the contractor of the railway to 

 Shillelagh), and thereabouts, the stone can be raised of very long 

 scantling, and capable of long bearings ; the stone is otherwise very 

 similar to that of Carrick. 



Railway Quarry, near Aughrim station (Aughrim Type). 

 More or less similar to the Carrick stone ; has been largely used at 

 the Bray station, and in other places along the Kingstown and 

 Wicklow Railway. 



Shelton Abbey and Glenart, about a mile N.W. of Arklow. 

 (Elvan). There are portions of a dyke in the Ordovician rock, 

 broken and slightly shifted by the fault of the Ovoca River ; a 

 bluish-greenish stone, weathering yellowish grey. The quarries 

 were opened and used for building the out-offices at Shelton Abbey, 

 and the castle and out-offices at Grlenart. 



Near Leuisville, north of Arklow. A boss of bright grey, fine- 

 grained granite, has been a little worked for local purposes. 



Little Rock, Arklow. — A bright grey, fine-grained granite ; used 

 in the vicinity ; the felspathic elvan associated with this rock is 

 suitable for glass manufacture. 



Croaghan Kinshclla. — On the north and north-west slopes, ex- 

 tending into the county of Wexford, is a fine-grained, bright grey 

 granite, regularly jointed, of apparently a good quality. It has 

 not been made use of, except the loose blades of it for farm pur- 

 poses. 



Macreddan, four miles from Rathdrum. Hard, yet not very 

 difficult to work. 



Killanure, five miles from Shillelagh. Micaceous and quartzose ; 

 even-grained ; works well. 



Williamstown, seven miles from Baltinglass. Felspathic, black 

 mica ; coarse-grained ; hard to work, as it splits irregularly. 



Kighfield, four miles from Baltinglass. A more easily worked 

 and better stone than the last. 



Whinstones, Eurytes, Felstones, Quartz-Rocks. 



In the north-western part of the Co. Wicklow, extending from 

 the boundary of the Co. Dublin to near Baltinglass, there is a 

 strip of Ordovicians, and associated intrusive rocks, very similar to 

 those in Kildare, except, perhaps, that they are more altered. To 



