Yol. 55.] BEDDED ROCKS OF COUIfTY WATERFORD. 731 



which closely resemble those in the cove under Doneraile Walk 

 (fig. 5, p. 728). So far I have found only one graptolite — a Climaco- 

 graptus — at this spot. 



The section previously given ^ by me is now obscured. The 

 black shales in the Ladies' Bathing- cove yielded the following 

 graptolites : — ■ 



Climacograptus perexcavatus, Lapw. Bicranograptus Nicholsoniy Hopk. 



Cryptograptus sp. ramosus, Hall. 



Dicellograptus sextans, Hall (?). 



Tongues of greyish felsite [4] [68] similar to that in the cove to 

 the north penetrate the shales which also form all the upper part of 

 the cliffs. 



It was presumably from some of these shales between Lady 

 Elizabeth's Cove and this spot that the graptolites mentioned by 

 Prof. Lapworth ^ from a list given by Baily ^ were obtained. They 

 comprise the following species, and are stated to have been found 

 in ' dark shales in Tramore Bay ' : — 



Climacograptus hicornis, Hall. 

 Coenograptus gracilis, Hall. 

 Dicellograptus sextans, Hall. 



Dicranograptus ramosus, Hall. 

 Didymograptus sp. 

 Diplograptus foliaceus, Murch. 



The graptolitic fauna mentioned above in the various collections is 

 characteristic of the Z)tcra>io^rap^iw-shales which in South Wales 

 overlie the Llandeilo Limestone. 



South of the Ladies' Bathing-cove the limestones are seen stretching 

 along the coast and dipping westward or west- north-westward at 

 angles varying from 45^ to 60°, with the diabase-sheet running 

 through them and other intrusions piercing them ; and at jS"ewtown 

 Cove we find them at its mouth dipping at 45° north-westward. As 

 we proceed up the glen they are seen to be overlain by some dark 

 fossiliferous calcareous shales, and these pass up into very fossili- 

 ferous calcareous shales and mudstones with beds of impure lime- 

 stone, all of which are much weathered and are exposed for some 

 50 yards at the side of the road running up the glen. A much- 

 crushed sheet of diabase [628] is found near the top of the series, 

 and above it come soft, dark, unfossiliferous concretionary shales 

 breaking with an irregular fracture. Upon them rests another 

 intrusive sheet, 40 feet thick, of dolerite [116] [629], and upon it a 

 mass of greenish felsite [630] exposed for some 30 yards by the 

 roadside. 



As the strike of the graptolitic shales of Lady Elizabeth's and 

 the neighbouring coves would bring them nearly to the mouth of 

 Newtown Cove, there must be a fault between these points shifting 

 them up the glen. The soft dark shales above the crushed diabase- 

 sheet probably represent them. The limestones are more argillaceous, 

 and the argillaceous graptolitic shales more calcareous. The diabase- 

 sheet has almost thinned out. 



1 Geol. Mag. 1897, fig. 1, p. 507. 



2 Ann. Mag. Nat. Hist. ser. 5, toI. iv (1879) p. 424. 



3 Quart. Journ. Geol. Soc. vol. xxv (1869) p. 158. 



3b2 



