244 MR. GARDINER AND PROF. REYNOLDS ON [ May 1902, 
C (8).—-The rhyolite (C7) is here seen to be overlain by the ash- 
band (C8), which can be traced across the base of Poulnakeragh 
(where it is slightly shifted by a fault) to the head of the next little 
inlet, which it occupies. Then it passes inland, and is exposed near 
the south-eastern corner of Ferriter’s Cove, at the point where the 
road from Ballincolla goes down on to the beach. 
C(9).—This thick series of brown, grey, and purple calcareous 
sandstones and flags with thin ash-bands, which as one proceeds 
northward is first met with at the rock of Doonycoovaun, occupies 
the whole coast from Coosaneal to the base of Doon Point, the deep 
inlet of Ferriter’s Cove being excavated in it. We estimate the 
thickness to be as much as 1390 feet. The highest of the ash- 
bands is seen forming the western boundary of the little promontory 
north-west of the inlet of Foilteela. On the southern coast of 
Ferriter’s Cove this band is apparently represented by a small 
mass of rather coarsely nodular rhyolite. A second band is met 
with, striking across the peninsula some 50 yards to the north- 
west; while a third forms the end of the peninsula opposite the 
islands of Carrignaman and Carrignanoon. ‘These last two bands 
are seen on the east side of Ferriter’s Cove, at the point known as 
Cloghadoo. A fourth band occurs on the north side of the Cove, due 
south of Poulgubadda; and a fifth at Coonakeel. Below this the 
beds become somewhat conglomeratie. 
Fossils proved to be very plentiful in these beds. At Poulnakeragh, 
at the base of Clogh Point, we obtained the following :—— 
Chonetes striatella, Dalm. Atrypa reticularis (Linn.). 
Orthis elegantula, Dalm. Rhynchonella nucula, Sow. 
Spirifer crispus, His. Pterinea pleuroptera, var., Conr. 
Sp. elevatus, Dal. Pt. squamosa, M‘Coy. 
Sp. bijugosus, M‘Coy. Horiostoma globosuim, Schloth. 
On the same line of strike, a little farther north-east, we obtained 
Rhynchonella borealis var. diodonta, Dalm. 
If it were essential to draw a boundary-line between 
the Wenlock and Llandovery Series, we should be dis- 
posed to do so at some point between the fossiliferous 
horizon just described and the next, although, owing 
to the conflicting nature of the fossil evidence, 
any such boundary-line must be, to a great extent, 
arbitrary. 
In the band of calcareous sandstone between the second and third 
ash-bands, at the extreme south-western point of Ferriter’s Cove, 
is a very fossiliferous horizon, yielding :— 
Lindstremia bina, Lousd. Spirifer bijugosus, M‘Coy, 
Cyathophyllum sp. Sp. crispus, His. 
Favosites sp. | Pentamerus oblongus, Sow. 
Labechia conferta, Lonsd. eee a 
Alveolites Labechii, M.-Edw. |  <Atrypa reticularis (Linn.). 
Halysites catenularia (Linn.). Leptena rhonboidalis, Wilck. 
Cenites interstinctus, Kichw. Stricklandinia lens, Sow. 
Heliolites sp. | Stropheodonta imbrex, Pander, 
Streptelasia sp. | var. semiglobosa, Day. 
