275 
Geological Relations of the East of Ireland . 
stone and of limestone conglomerate around and high up the hill, 
I am led to infer that these are projections of contemporaneous im- 
bedded masses, if not portions of continuous beds, which are con- 
cealed from view by the covering of soil. The alternations are best 
displayed toward the north-eastern foot of the hill ; and if we fol- 
low the public road from the village of Pallis to that of Nicker, 
situated more to the west, we may observe the order of suc- 
cession. 
Close by the former village, we find in the road itself, firm rock 
of basalt, porphyry, and amygdaloid, and immediately below them, 
limestone. Farther on, blackish grey trap appears on the southern 
side of the road, and a few perches beyond we come to a limestone 
quarry on the same side, exhibiting strata three and four feet thick, 
dipping at an angle of 12° or 15° toward the west. Three of the 
solid strata are laid open in the quarry, and above them we perceive 
a thin tabular rock, the surface of which is in general decomposed ; 
but on breaking into the thicker tabular masses, the true nature of 
the rock becomes displayed ; being in fact an intermixture of lime- 
stone with bluish grey trap. 
At the village of Nicker blackish grey trap crops out immediately 
above the chapel, arranged in distinct strata, three, four, and five feet 
thick, dipping from 20° to 30° toward the west, and therefore con- 
formably to the limestone which we left below. This bed of trap 
extends upward about ten fathoms, and is then succeeded by a bed 
of limestone, about fifteen fathoms thick, whose strata repeatedly 
crop out at the surface, and are disposed conformably to the sub- 
jacent trap. The limestone is surmounted by trap, which seems to 
occupy the hill to the very summit, as no other rock appears in this 
quarter ; and this body of the trap is probably nearly forty fathoms 
thick. 
2 m 2 
