283 
Devon and Cornvoall^ Belgium^ the Eifel^ S^c, 
longing to the carboniferous series, although it is admitted 
that the adjacent clayslate is interstratified occasionally with 
the limestone, such slate, however, to meet the occasion, 
being called a “'carboniferous slate 
Nor does the dilemma end here. The eastern part of 
Waterford is coloured grey, as indicative of an older transi- 
tion series, and the rest of the schistose and conglomerate 
tract, extending to the western extremity of Kerry and north 
of the line already noticed, are coloured purple, as signifying 
a newer transition seriesf . 
Now, in the year 1824 I discovered (as before mentioned) 
transition fossils in the south-eastern part of the county of 
Waterford, and in 1833 Mr. Holdsworth observed the same: 
and in 1829 I found other transition fossils in the western part 
of the Dingle peninsula in Kerry; and in 1837 Mr. C. W. Ha- 
milton discovered them also in another adjacent locality, to the 
list of which Mr. Griffith has since added others. Those col- 
lected by myself appeared chiefly referable to such as are found 
in what have since been denominated in England the Cambrian 
and Silurian systems, and the same inference appears dedu- 
cible from those later collected. These tracts therefore clearly 
belonging to an ancient transition series, it may reasonably 
be inquired why is the Waterford district coloured grey as 
an older transition series, and that in Kerry purple as a 
newer transition series %? 
Yet in reference to Kerry and part of Cork Mr. Griffith 
also contends §, that ‘Hhe red conglomerate of Cahirconree 
and Carrantoohill (Gurrane Tual) mountains, together with 
the coarse red slate of which Tomies and Glenaa mountains 
at Killarney are composed, belong to the old red sandstone 
series ; and that the limestone of Killarney, Kenmare, and 
Bantry, belongs to the carboniferous and not to the transition 
series.'^ Having advanced so far, if Mr. Griffith had gone a 
step further (which he might have done with just as much 
propriety,) and included the patches of limestone near Skib- 
berecn and Courtmacsherry bay also in the carboniferous 
series, the result according to Mr. Griffith’s view would be 
* In the new map it will be seen that in the eastern quarter of this 
tract the purple colour is now converted into reddish-brown, as indicative of 
old red sandstone, and in the western quarter chiefly into grey, as denoting 
greywacke slate. 
t But remodelled in the new map, with reddish-brown as old red sand- 
stone in the eastern quarter, and grey as greywaeke slate in the western, 
as already mentioned. 
f In the new map, the greater part of Kerry and a small part of Cork are 
now coloured grey, as greywacke slate. 
§ Eighth Report of the British Association, pp. 83, 84. 
