326 
THE GEOLOGIST. 
fossils last year, he has ascertained that they are coeval with the 
deposits of the valley of Ballynascreen. The beds consist of red 
sandstone and contain casts of four species of CucuUsea, Pullastra 
antiqua, several Nuculse, and a Cythere. The shales overlying 
these beds contain in abundance the scales of Holoptychius Port- 
locUi, together with fifteen species of Cythere, Modiola McAda 
mi, Orthoceras regulare, Cypricardia socialis, and five species of 
CucuUsea. In the southern portion of this section, commencing 
on the shore of Strangford Lough, the limestone of Castle Espie 
is shown, also resting unconformably on the old slate. It con- 
tains Actinoceras Simmsii, Produda gigantea and latissima, 
Orthis cylindrica, Spirifer imhricata and glabristria, and Cyatho- 
phyllumfungites. The limestone is succeeded by various coloured 
sandstones, extending northward to Scrabo Hill and the old 
slate ridge of the Ards peninsula. From a review of all these 
sections, and a careful comparison of the lists of fossils obtained 
from them, Mr. Griffith has been induced to class these deposits 
with the lowest members of the carboniferous series. 
Report on the Excavation made at the Junction of the Lower 
New Red Sandstone with the Coal Measures at Collyhurst, near 
Manchester" hy E. W. Binney, Esq. — The rocks of the new red 
sandstone series, in the vicinity of Manchester, are described by 
Mr. Binney as occupying hollows previously formed by great 
dislocations in the carboniferous strata. Along the valley of 
the Irk the upper new red sandstone, the magnesian limestone, 
and the lower new red are exposed in succession ; but as the ab- 
solute point of contact between the coal measures and lower new 
red sandstone had not been seen, a deep cutting was made at a 
place called Tinker^s Brow, about one mile N. E. of the Manches- 
ter Exchange. The difi'erent beds were thus described by Mr. 
Binney in descending order. 1. The Till, locally known as marl 
and brick clay, containing blocks of granite, sienite, porphyry, 
greenstone, basalt, and various other igneous rocks ; clay slate, 
Silurian Rocks, mountain limestone, chert, millstone grit, iron- 
