188 Proceedings of the Geological Society. 
land to the neighbourhood of Shap Falls; 3d, a great series of beds, 
ranging from the calcareous slates to the carboniferous series, and 
separated provisionally by the author into two divisions, the lower 
consisting of slates and flagstones, with occasionally thick, hard, are- 
naceous strata, the fossils containing many species characteristic of 
‘the lower Silurian rocks, and the upper being composed of arena- 
ceous flagstones, with beds of hard greywacke, calcareous matter occa- 
sionally occurring, but no beds of limestone fit for use. The fossils 
of this division, a list of which, by Mr J. Sowerby, accompanies the 
paper, contains numerous species belonging to the upper silurian 
rocks of Mr Murchison, or to the beds which have been considered 
to form the base of the old red-sandstone in Shropshire. From the 
above specific determinations of organic remains, the author says the 
following definite information is obtained, namely, that the lower 
division is lower silurian, and that the upper ends at the very top of 
the silurian system, Two other sections are then briefly noticed, 
one from the Shap granite, through the fossiliferous slate to How- 
gill Fell, the beds of which are placed in the upper division of the 
silurian system, but not the highest part; and the other from the 
western boundary of the calcareous slates to Ulverston, including, 
Ist, the calcareous slates (Caradoc) of Millom, in Cumberland ; 2d, 
quartzose flagstones ; 3d, the roofing-slates of Kirby-Julith ; 4th, a 
second band of calcareous slates with lower silurian fossils; and 
5th, an upper series of flags and slates, which reach to the neigh- 
bourhood of Ulverston. The last beds are overlaid by strata of a 
coarse composition, but which, in a section continued to Morecambe 
Bay, do not shew any upper fossiliferous bands. 
Ireland and South of Scotland.—Some sections in the counties 
of Waterford and Kerry, to which the author was conducted by Mr 
Griffith, are then briefly noticed. He afterwards shews that Mr 
Griffith’s present grouping of the older strata in the south of Ire- 
land is not only sanctioned by the section, but removes the supposed 
anomaly of carboniferous fossils reappearing at different levels in a 
descending series. The silurian fossils of the north of Ireland, pre- 
paring for publication by Captain Portlock, are also noticed; but it 
is stated that the sections of that part of the kingdom do not appear 
to connect these fossiliferous rocks in such a manner with the older 
formations, as to materially assist in their subdivisions or grouping. 
Mourne Mountains, Galloway chain, &c. After a few details on the 
physical features and mineral composition of Devonshire, Mr Sedg- 
wick describes the chain, extending from the Mull of Galloway to 
St Abb’s Head. The prevailing strike of this range, like that of 
the Mourne Mountains, is about NE. by E., even in the neighbour- 
