part 3] GLACIATION OF NORTH-EASTERN IRELAND. 413 



to the 200-foot level, and the northern ice from The Windy Gap no 

 longer penetrated G-lenmore below the Cloughmore moraine. 



The Jenkinstown valley is largely encumbered with drift, 

 arranged in roughly parallel ridges, which obviously were lateral 

 moraines of the western ice produced during the various stages of 

 its shrinkage. 



There are numerous overflow-channels on the southern face of 

 Slievenaglogh ; but they are of small size, and appear to have 

 carried small streams from the edge of the ice rather than the 

 overflow of a lake. At the foot of the slope near Rockmarshall 

 House stria? point south-eastwards, and at Clogh Patrick, a mile 

 farther east, they run from west to east. Near The Bush Station 

 are striae on the spur of Barnavave, pointing only a few degrees 

 south of east, showing that the western ice was pressed closely 

 against the ends of these hills. 



With regard to Carlingford Mountain thei'e is little to say, 

 except that on the summit numerous small erratics of Silurian 

 grit occur. These are at least 500 feet above the parent outcrop, 

 and show that the mountain was completely overridden by ice from 

 the north. 



South of the mountains, and between them and the sea, is a 

 strip of slightly undulating land, varying from half a mile to 

 3 miles in width and lying below the 200-foot contour. It consists 

 entirely of glacial deposits, boulder-clay below and gravel above. 



In the neighbourhood of Bellurgan Station, on the Dundalk, 

 Newry, & Greenore Railway, is a series of lateral moraines having 

 a general trend from west-north-west to east-south-east. These 

 moraines form several parallel ridges, and consist of brownish and 

 somewhat clayey gravel, containing boulders and pebbles of 

 Silurian and igneous rocks from the neighbouring hills, from Slieve 

 Gullion, and from the Tyrone Axis. 



A section in the morainic gravels close to Bellurgan Station 

 yielded several varieties of granite, andesites, and Silurian grits, 

 all derivable from the country immediately to the north-west, 

 Carboniferous Limestone (local), basalt, white quartzite, and red 

 quartz-porphyry. 



Immediately south of Rockmarshall House, at the point where 

 the road passes beneath the railway, is a pit excavated in a very 

 sandy brown clay, in which no bedding is apparent. The boulders 

 are similar to those found at Bellurgan Station, and the pit is in 

 one of a series of morainic mounds which occur on both sides of 

 the railway. 



The two small lakes, Lough Anmoney and Lough Anmore, 

 between the railway and the sea, occupy closed hollows or kettle- 

 holes, Lough Anmore lying in a hollow enclosed by the 50-foot 

 contour. 



Near the viaduct at Riverstown the river cuts through the drift- 

 plateau, and exposes a section of a moraine with a terrace of 

 stratified gravel on its upper, northern, side. The bedding in the 

 moraine is confused ; but that in the terrace is horizontal and, with 



