66 binnie: mesozoic rocks of the north-east coast of Ireland, 
lignite, showing that between each flow sufficient time elapsed for 
vegetation to spring up, and soil to accumulate to a considerable 
depth. 
There are various post-tertiary deposits along this coast with 
which we are not at present concerned. 
The appended section will exhibit more clearly than a long 
verbal description the position of the various outcrops of the beds, 
already briefly described (the section is diagramatic). There is a 
fairly continuous outcrop of chalk round the whole plateau, but fossils 
are generally scarce except near Dungiven, to be mentioned hereafter. 
At Belfast there is a good exposure of the Lias and Greensand, 
about three miles out, along the Falls Road in Colin Glen. From 
Belfast, going west, there is the Lias and Greensand, near Carrick- 
fergus, in the stream marked Woodburn river ; then follows, still going 
west. Island Magee and Waterloo, the former by far the best fossil 
locality. Trias, Lias, and higher beds are alternately exposed in the 
shore till Cushendal is reached. Then follow the red sandstones, 
resembling the Old Red Sandstone, below which are the mica slates, 
which are not again lost till we pass Fair Head (see section) ; they 
are there capped by the carboniferous deposits already mentioned. 
Beyond Ballintoy there are the only representatives of the Middle 
Lias, a synclinal seems to have carried all, except the basalt, beneath 
the sea, to re-appear again near Portrush, where the basalt oversteps 
everything till it lies on the Lias, which it has converted into a kind 
of hornstone. Beyond Portrush (not shown in the section) the outcrop 
bends, and the newer deposits occur at a very high level, so that they 
are only exposed on the top of lofty mountains such as Benbradagh. 
On the other side of Lough Foyle are the mica slates. 
While on a geological tour round the north coast of Ireland last 
summer, I had occasion to visit a quarry at Dungiven, near Newton 
Limarady, situated at the top of Benbradagh, 1200 feet above sea 
level. Here the chalk is extremely fossiliferous. As this is the most 
westerly exposure, the list of fossils appended, named from the 
collection in the Woodwardian Museum, Cambridge, may be of some 
interest. The extreme abundance of Baculites seems indicative of 
a very high zone in the chalk, but the fossils found are not all such 
