78 Scientific Proceedings, Royal Dublin Society. 



Limerick, . . . Ahaphuca, S.S.W. of Bally landers. 



Tipperary, . . . Victoria Quarries, Valley of the Lingaun, near 



Carrick-on-Suir ; Vale of Ahcrlow, near 

 Caher ; Corbally and neighbouring quarries, 

 near Killaloe, to the east of Lough Derg, 

 p. 88. 



Waterford, . . Ross, near Kilmacthonias ; Glenpatrick, near 



Clonmel and Carrick ; Clashmore, near 

 Youghal, p. 91. 



Wexford, . . . Neivtoivnbarry, p. 92. 



Wicklow, . . . Ashford, p. 93. 



ROOFING SLATE. 

 CLARE. 



To the west of the south arm of Lough Derg there is a tract of 

 the upper division of the Ordovicians, similar to those in which the 

 Killaloe (Corbally) slate quarry is situated ; but the slates in 

 general do not appear to be comparable either as to quantity or 

 quality. 



At Trough, about four miles north of Limerick, slate was 

 quarried to a slight extent, but as it was coarse and heavy, the 

 works were abandoned, as were also others in this range of hills. 



To the N. E., in Slieve Bernagh, or the group of hills about 

 Broadford and Killaloe, slate veins have been opened in several 

 places between Huddlestown and Broadford, and at Knockprise. 

 The slate was good ; but as it was greatly ruptured by faults, no 

 large working could be carried on, the slate occurring in small 

 patches, locally called " pockets." 



In the hills south of Grlenomra, the valley between Broadford 

 and Killaloe, various trials were made without good success, 

 although for a time a coarse slate was worked a mile S. W. of 

 Kilbane. 



To the east of Broadford there is an apparently good vein, 

 which at one time was rather extensively worked ; but the long 

 and expensive land carriage to a market seems to have stopped 

 the work. Farther eastward, north of Grlenomra, and near Lough 



