Devon and Cornwall^ Belgium^ the Eifel^ S)r. 283 



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 myselfappeared 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 "the 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- 

 bereen 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. 



J 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. 



