285 
Devon and Cornwall^ Belgium^ the Eifel, S^c. 
Kerry, Cork, and Waterford, and of which I have given 
sufficient descriptions elsewhere*. 
In following Mr. Griffith’s progress thus far, what is the 
result? It amounts to this: that with the exception of the east- 
ern part of Waterford lying between the Monavoullagh range 
and the coast, and the southern part of Cork lying south of 
the line drawn from near Dursey island past the head of 
Bantry bay to Ringabella inlet, both of which (coloured grey) 
are referred to an older transition series or to a Silurian series ; 
all the rest of the schistose and conglomerated rocks, extend- 
ing from the county of Waterford on the east through that of 
Cork into and through Kerry on the west (coloured purple), 
are viewed, and designated by Mr. Griffith in different parts 
of his communications, as the old red sandstone formation, 
as a newer transition series, as a Silurian series, (all these 
three being also called an old red sandstone series), and 
lastly, as an older transition series; while all the bands of 
limestone included in these schistose and conglomerated 
rocks, from the limestone band in the valley of the Bride on 
the north, to that occurring in Bantry bay on the south, are 
referred to the carboniferous limestone, although admitted to 
be in direct association with the rocks by which they are 
boundedf. 
All this is undoubtedly sufficiently perplexing to a geolo- 
gical inquirer, since it leaves him no secure footing anywhere. 
I now turn to the sections; yet another anomaly claims 
previous attention. All the old red sandstone tracts lying 
north of the city of Limerick, as those of the Bilboa and 
Slieve Bloom mountains, similar districts in the counties of 
Clare and Galway, and others yet more north, are coloured 
reddish and yellowish brown ; and with this I do not quarrel 
further than that the adoption of two colours to designate the 
same formation seems superfluous, making that to appear com- 
plex which is simple, it being well known that both the colours 
and composition of the old red sandstone formation are very 
variable ; and as to occasional interstratification on the bor- 
ders with the carboniferous limestone, that may be very well 
expressed by words. The anomaly I advert to is this, that 
the old red sandstone of the extensive range of the Gaultees 
should be coloured as a newer transition series (purple), while 
* Geol. Trans., vol. v., second series, Memoir on the South of Ireland, 
generally in §§ 8 and 15, and in particular in §§ 7 to 33, and §§ 34 to 41. 
t These are the legitimate inferences deducible from the Outline,” 
with its map and the three later written communications. The various 
modifications and alterations given further to these views, as designated by 
the new map, I have already adverted to in preceding notes. 
