ON THE GEOLOGY OF THE LAKE DISTRICT OF KILLARNEY. 105 
summit ridge on the north face of Tore Mountain; the general strike 
of the beds is here nearly east and west, but they are much con¬ 
torted at the summit of the mountain; a short distance from it to the 
north, the crumpling of the beds begins to assume a definite arrange¬ 
ment, viz.a dip of from 70° to 85° north, suddenly changing to 
25° south, and this along the line of strike of the beds for the dis¬ 
tance of about 1500 feet; it appears that the crushing force here 
applied became so extreme, that the beds had a tendency to break 
along their strike, rather than bend, and being relieved by the Tore 
townland boundary fault on the east, and those at the Dead-cow 
Cliff to the west, they yielded along the strike of the synclinal curve, 
and formed an east and west fault. These beds, which dip at 25° 
south, abut against others, dipping 75° to 85° north, or often ver¬ 
tical ; though faulted in this way, the amount of vertical dislocation 
may not be very considerable. 
Proceeding now to Glena, and northwards along the shore, 
under Lady Kenmare’s cottage, the only rocks we find are purple 
or liver-coloured slates and sandstone. At the point south of the 
rocky island called “ Darby’s Garden,” is a broad band of thick- 
bedded, purple, conglomeritic sandstones, dipping S. 30°, resting on 
irregularly bedded and thick purple sandstones, with slates; and still 
lower in the series, at Slay and at Burnt Island are purple con¬ 
glomeritic cornstones in the conglomeritic beds. Jasper pebbles 
frequently occur, and in cornstones the pebbles are purple grit and 
quartz, white quartz and jasper, in a rusty, calcareous, and sandy 
paste. When the cornstones are not conglomeritic, the calcareous 
portion consists of small lenticular layers, with a sandy or schistose 
matrix; and on exposed surfaces the rock assumes a dimpled appear¬ 
ance. Most of the purple sandstones extending from Darby’s Gar¬ 
den to Stag Island are more or less calcareous. From the upper 
Old Red of Glena to the island just named, a distance of one mile 
and a quarter, none of the pale greenish-gray grits of Ardnagluggen 
Point in Muckross cross over to this shore, as their strike would 
suggest-—a discrepancy which is the result of the upcast faults of 
Brickeen and Glena, 
The summit of Tomies Mountain, 2414 feet, and that of Glena 
Mount, 2503 feet, exhibit purple grits and slates; at the latter there 
are many conglomeritic beds, similar to those near Darby’s Garden 
on the Glena shore, and, like them, containing jasper pebbles. 
Vol. VII. M 
