130 
JOURNAL OF THE GEOLOGICAL SOCIETY OF DUBLIN. 
Mountains; but in the western part of this peninsula, it appears to 
have been nearly all carried away by denudation, leaving, as a me¬ 
morial of its former existence, only the eight small patches I have 
just described, of its very lowest beds. Different from these, how¬ 
ever, is the case that follows. 
9. At Scrallaghbeg, farther eastward, another junction of conglo¬ 
merate, overlying green grit unconformably, occurs. This is a few 
perches south of a sharp turn in the public road, seven miles N. E. 
of Aunascall, and ten miles from Tralee. The Old Red Sandstone 
at this place, is evidently of the lower beds, and a continuation of 
the several patches, Nos. 6, 7, 8, being in the same line, country, and 
having a similar dip. From this place it proceeds eastward, covering 
the northern slope of the hill for about three miles, where it turns 
southward to Bartregoum, the highest point of Slievemish Mountain. 
From this summit eastward, the whole mountain is covered with it 
sloping downwards gradually to the east for twelve miles, without 
much increase in thickness, till it comes near the coach-road from 
Tralee to Killarney, at Currens, where it is succeeded conformably 
by calcareous slate, containing a profusion of the ordinary fossils of 
the Carboniferous Limestone, and one of the best localities in Ireland 
for those fossils. This slate is again covered by the limestone about 
Castle Island, and that surmounted by millstone grit, the base of 
the coal rocks of the Slieve Luaghar Mountains. 
Thus, this conglomerate of the Old Red Sandstone can be traced 
through the Dingle peninsula, in eight detached patches, from Sybil 
Head to the summit of Slievemish Mountain, and the overlying Red 
and Yellow Sandstone eastward along that mountain passes into the 
calcareous slate, limestone, and millstone grit of the great Munster 
coal district. 
The section from Brandon Head to Bull’s Head is the longest 
across the strike of the strata in this peninsula, and is instructive. 
At Brandon Head, on the north, the brownstone dips to the south, 
at an angle of about 70°. At Connor Hill, in the middle the rock 
is green and gray grit, and also dips south at about 60°. At Bull’s 
Head, on the south shore, brownstone, associated with gray slate, dips 
southward at an angle of about 80°. In this line, from Brandon 
Head to Bull’s Head, no fault has yet been detected, no protrusion 
of greenstone or other igneous substance; nothing apparent, that 
would disturb a regular succession of the rocks. There is even an 
