289 
Devojt and Cornwall, Belgium, the Elfel, 
which (as indicative of old red sandstone) is made everywhere 
to surround in symmetrical order the isolated bands of lime- 
stone which occur in the south of Ireland, (save and except 
those of Bantry bay, Skibbereen, and Courtmacsherry *), 
and which is also introduced in the vale of the Blackwater and 
Dungarvan, as underlying the limestone there. Old red sand- 
stone is not within my cognizance in the positions indicated ; 
and the occurrence of a grey or yellow sandstone with some 
catamites is another question. For I contend that the old 
red sandstone formation, in the legitimate sense of that term, 
nowhere passes to the south of the river Blackwater; and 
the two districts of that formation which occur in Kerry, 
namely, in the Slieve Meesh range and Kerry head, lie north 
of that parallel. 
Doubtless influenced by similar systematic views, Mr. Grif- 
fith represents the whole series occurring between the valley 
of the Suire and Cork head as consisting of a regular se- 
quence ; which taken in an ascending order between the 
Suire and the Blackwater, is said to be composed of grey- 
wacke and slate, conglomerate, quartz-rock, red slate, yellow 
sandstone and sandstone-slate, green slate and limestone; 
and that in traversing the country further south, between 
the vale of the Blackwater and Cork head, we meet only 
with a repetition of the same succession between the different 
bands of limestone encountered in our progressf. That all 
these rocks are to be found in the sequence there is no doubt; 
but I know of no such regularity of order as is proposed, and 
excepting wholly the old red sandstone formation from the 
series, south of the Monavoullagh range. I must also remark 
that the disposition of the rocks as given does not correspond 
with the results of my researches, and that anticlinal and 
synclinal lines appear to be introduced where there is no proof 
of their existence. I advert in particular to the three bands 
* But in the new map, these limestones are also bounded by the 
brownish-yellow stripe, which likewise is made a border to what is desig- 
nated as reddish-brown “ old red sandstone,” wherever the latter is arbi- 
trarily introduced, e. g.,at the heads ofKenmare and Bantry bays, &c., where 
certainly no old red sandstone has been seen by me. Again, on the western 
side of the Lower Lake of Killarney, extending westward on the south side of 
the river Laune, Mr. Griffith confounds with the old red sandstone, the red 
conglomerate, sandstone, and red slate of the transition series, which pre- 
vail in that quarter, and are well exposed in the pass to Dunloe Gap, all 
dipping south, yet subject to some inflections^. 
t Proceedings of the Geol. Soc., May 22, 1839, p. 137 ; and Journal of 
the Geol. Soc. of Dublin, June 13, 1839, pp. 86* to 88. 
* Geol. Trans., vol. v., second series. Memoir on the South of Ireland, 
§ 10. 
F/nl. Mag. S, 3. Vol. 16. No. 103. ISiO. U 
