248 
Mr. Weaver on the 
Knockmildown and Monavoullagh mountains; tvhile on the 
south we perceive the low clay slate range that intervenes 
between that river and the Bride, and which extends toward 
Dungarvan on the east. On the northern side of this range 
there is interposed between the clay slate and limestone a partial 
border of fine grained sandstone ; from which Lismore castle partly 
derived its materials. 
The eastern portion of the county of Waterford consists almost 
entirely of clay slate, presenting a disposition nearly approaching 
to that observed more westward, a range of 20° west of north and 
east of south, with a dip of 70° or 80° toward the south of west. 
In the vicinity of Bonmaghon, copper mines were formerly wrought 
to some extent. 
§ 145. The south-eastern angle of this county is wholly com- 
posed of sandstone and sandstone conglomerate, arranged in strata 
remarkable for the regularity of their order and their parallelism 
throughout a line of coast three leagues in extent, being disposed in 
the same inclination of 10° toward the south from Knockaveelish 
headland on the western side of Waterford harbour to the extreme 
point on the eastern side of Tramore bay. This disposition is 
very perceptible from Shanoon Head, which supplies the ma- 
terials of Dunmore Pier, and immediately adjoins the new har- 
bour. From this point we obtain a view of three successive head- 
lands to the north, of which the most northern is Creden Head ; 
and in like manner, from the top of Red Headland, to the south of 
Shanoon, the view extends beyond three successive headlands to- 
ward the south, the most southern being Foylskirt Head. The sea 
has in some cases on this coast laid bare a clean uninterrupted sheet 
of the rock, exposed in one plane, at low water, for 300 yards in 
length, and 50 yards in breadth. The sandstone conglomerate of 
