Devon and Cornvoall, Belgium^ the Eifel^ 279 
encies into which it has led him ; and on the faith of which 
he ventures to state * * * § that, “ had Mr. Weaver, who re- 
presented the conglomerate of Monavoullagh as a mountain 
cap resting on greywacke slate, made a careful section of the 
strata, either from Monavoullagh or Ballyvoil Head, he 
would have been convinced of his error, and probably have 
arrived at the same conclusion as mine a singular conclu- 
sion certainly, inasmuch as there is no apparent connexion 
whatever between the horizontal sandstone conglomerate of 
the Monavoullagh range and those beds of conglomerate, 
sandstone, and red slate of the coast which extend eastward 
from the vale of Dungarvan in several separate discontinuous 
bands interstratified with other transition rocks ; all these dip- 
ping throughout at a high angle, chiefly to the south, but also 
to the north, wdiich latter position may be seen in the red 
sandstone conglomerate and the associated rocks in Tranamoe 
head, within a short distance of Bonmahon river. I have 
described elsewhere that these rocks of the coast are connected 
on the north and west with varieties of clayslate (black, blue, 
green, yellow, red, and purple), alternating with greywacke, 
quartz rock, hornstone, red sandstone, and conglomerate, and 
comprising also subordinate beds of greenstone with porphy- 
ritic varieties of the rocks which J have enumeratedf. This 
statement was not lightly given, having carefully examined 
the interior in many directions, as well as the whole line of 
coast extending from Dungarvan harbour on the west to 
Waterford harbour on the east; and having in the course of 
my researches (in 1824<) discovered transition fossils in the 
series, I had the greater pleasure in exploring the district, 
and in ascertaining with exactness the composition and struc- 
ture of the rocks, as I had just completed and published my 
account of the Tortworth transition district in Gloucester- 
shire J. 
But it is not necessary to rely on my own testimony alone. 
The interesting remarks of Mr. Holdsworth§ on the eastern 
part of the county of Waterford, extending from the Bon- 
mahon coast to the Monavoullagh range on the west, illus- 
trated by a map, come in aid of my views; and they may be 
considered the more valuable as proceeding from an unbiassed 
observer. And had Mr. Griffith fully attended to them, 
* Journal of Geol. Soc. of Dublin, vol. ii. p. 86. 
t Geol. Trans., vol. v., second series — Memoirs on the south of Ireland , 
§§ 15 to 20 inclusive. 
X Geol. Trans., vol. i., second series, 1824. 
§ Journal of Geol. Soc. of Dublin, vol. i., part 2. 1834. 
