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Mr. Weaver on the 
structure from interposed laminae of clay slate. The strata range 
25° north of east and south of west, and dip 45° toward the 
north-wesU They are occasionally traversed by fissures, and by 
veins of quartz, which range 25° south of east ; and in these veins 
have appeared in some places indications of lead, copper, and iron. 
The lower grounds and eminences in the vicinity of Forth are 
composed of alternations of quartz rock and clay slate. The for- 
mer rock, which is sometimes iron-shot and of a deep reddish hue, 
ranges to the north of Wexford town, forming its foundation, and 
in its southern progress it constitutes the White Rocks at Kerlogue, 
extending still farther south. Clay slate is visible in Johnstown 
deer park on the south-eastern side of Forth ; and to the north- 
west is distinctly seen at Carrig bridge, and in several other parts 
around the inner haven, ranging 25° north of east, and dipping 
45° toward the north-west. It is traversed by contemporaneous 
veins of quartz, and probably contains several beds of greenstone, 
blocks and fragments of this rock being observable on the strand 
near Saunder’s Court, and smaller pieces in the fields above, and 
toward the entrance of Edenvale. 
§ 74. The general components of the south-eastern quarter of 
this county are quartz rock and clay slate interstratified, disposed 
in the manner above described, and containing occasionally beds of 
greenstone. A decayed bed of the last mentioned compound may 
be perceived, in proceeding toward Carnsore Point, in a quarry 
opened on clay slate and quartz rock, close by the island of St. 
I vers in the Lady’s Lake. From hence to Carnsore Point, the 
land gradually rises, forming a low swell of ground, composed 
apparently of granite, great blocks of that rock, with some few 
scattered masses of mica slate, occupying its entire surface. The 
approach to a granite soil is indicated even at Broadway village, a 
