298 
Mr. Weaver on the 
Dunganstown range, and occupies the vales of the Three Mile 
water, the Potter’s, and Redcross rivers. 
§ 206. Similar depositions are found adjacent to the banks of 
the Ovoca in the lower part of its course, but in proceeding upward 
they become less frequent, and disappear altogether at the distance 
of about five miles from its mouth. The most inland deposit of 
marl, in this vicinity, occurs near Newbridge on the right bank of 
the river, and below this, on the left bank, are two other small 
patches in the demesne of Bally Arthur. 
§ 207. Valuable beds of marl, and a few also of limestone 
gravel, line the eastern and southern coast of the county of Wex- 
ford, and penetrate into the vales immediately connected with the 
sea ; yet, as in the county of Wicklow, no where passing the first 
mountain barrier that arises on the west or on the north. 
§ 208. Whence are the limestone gravel and marl derived, 
which we thus find to be distributed along the coast of the counties 
of Wicklow and Wexford? The nearest visible limestone rock in 
the northern quarter, is that which occurs at Williamstown and Boot- 
erstown on the southern side of the Bay of Dublin (§ 165); and to the 
southward, the first rock of this description that appears, is on the 
coast south of the town of Wexford (§ 167). If we may draw any in- 
ference from analogy, it is probable that the primary rocks of this 
coast support floetz limestone under the sea, and that this limestone 
lies nearest to the land, where the debris are found to consist of the 
coarsest fragments. In the line of the Dargle and between the 
two Sugar Loaves, large pebbles and even boulders of limestone, 
twice and thrice the size of the head, occur among the gravel, and 
are there selected for burning into lime upon the spot. 
§ 209. The features of the northern and western declivities of 
this mountain chain, correspond with these views. The primary 
