326 
[B.N.F.C. 
layers of basalt capped by boulder clay in the less-exposed face 
of the great Magheramorne Quarry. 
At Cloughfin, immediately north of Black Head, we have 
boulder clay resting on Trias about 50 feet above the open 
sea, and, as might be expected, we have a very varied series of 
erratics, including slate from Ballachulish, felsite from the 
Clyde, Cushendun, and Torr rocks, Ailsa rock, syenite from 
Slieve Gallion, ironstone nodules from Lough Neagh, granite 
from Slieve Croob, and three fragments of the porphyry dyke 
at Bloody Bridge, near Newcastle, nearly 50 miles south of 
Cloughfin. 
Just inside the mouth of Belfast Lough, near Whitehead, 
we find an interesting difference in the list of erratics at 
Cloghanport ; this deposit is only 4 or 5 miles from Cloughfin, 
but is much more limited in range. No rocks from south or west 
occur, Ailsa, Torr Head, and Cushendun furnishing the most 
distant boulders. Amongst the 339 erratics listed, 24 were from 
Ailsa Craig. We may group Ballyholme, near Bangor, with 
these two' seaside localities, and note abundant pebbles of Ailsa 
and eight undoubtedly Scotch rocks, including a Silurian shale 
from Girvan, containing a fossil trilobite. 
Retracing our steps inland to a group about Lough Neagh, with 
Drumsough IX. (near Cookstown Junction) and Cranfield Point, 
X., on its north, the glacial gravels of Antrim,, XI., and Glenavy 
and Crumlin, XVII., on its eastern shore, we still find erratics 
from Cantyre, the Clyde, Cushendun, and Slieve Gallion, adding 
granites from Pomeroy in Co. Tyrone, as we descend eastward 
to Woodburn Glens, XII., anl arrive at Greenisland, where our 
survey first commenced its labours with such a surprising list 
of travelled rocks. 
Once more we ascend the basaltic plateau, search- 
ing, at Mr. Wright’s request, for the highest attainable 
boulder clays, visiting the great quarry behind Carnmoney 
Church, and extracting with difficulty the boulders un- 
usually firmly bedded in the clay. Here we came upon chert, 
carboniferous limestones, and shales that have probably 
travelled 40 miles across the plateau from the Ballycastle coal- 
