Kin ah an — On Granite and Metamorphic Rocks. 187 



done away with the former trade in limestone ; so that most, if not 

 all of the quarries of the latter, which were formerly worked to 

 supply Dublin are now closed, such as those in the Kimmage dis- 

 trict, to the southward, and those between Lucan and Leixlip to 

 the westward (vol. v., page 421). 



[Note in Press. — Some of these limestone quarries have been 

 reopened for use in the piers of the Loop line Railway connecting 

 "Westland-row and Amiens-street.] 



The Killiney, Bullock, Dalkey, and Kingstown Quarries. — The 

 granites here are harder and more durable than those of Wicklow 

 and Carlow ; but as the latter tool more freely, and can be procured 

 at cheaper rates, they have been preferred by the Dublin builders. 

 The local stones are capable of being raised in very large blocks, 

 and were extensively used during the building of the Kingstown 

 piers and jetties, they having been procured from two quarries, 

 now filled up, near the land end of the East Pier, and from exten- 

 sive workings in the north face of the Telegraph Hill. Stones 

 from these quarries were also used extensively, by the permission 

 of the Board of Works, in the construction of the permanent way, 

 the old stations, and the old offices of the Dublin and Kingstown 

 railway. 1 



In the neighbourhood of Bullock and Dalkey granite has been 

 largely quarried in different places, for use in the public and private 

 buildings of the neighbourhood of Kingstown and elsewhere. 

 Various light-houses round the coast, as that at the south entrance 

 to Bearhaven, Co. Cork, were built by the Ballast Board of stones 

 procured here, while Kylemore Castle, Connemara, the seat of 

 Mitchell Henry, Esq., which was contracted for by a Dublin 

 builder, although close to the great granite area of Gralway, has 

 facings and dressings of " Bullock granite." 



The granulyte (or veins of segregation in the granite), when 

 fine-grained, felspathic, and nearly micaless, as also the nearly similar 

 elvans in the adjoining mica schist, have been pronounced suitable 

 for use in the manufacture of ornamental and bottle glass (vol. v., 

 page 619). 



During late years, a very good class of granite was quarried at 



1 The newer works at the Kingstown and Dublin Stations are of Ballyknockui 

 stone, 



Q2 



