Geological Society. 10 1 



elongate, nintli gradually thickened, tenth only slight! v 

 longer thau broad, eleventh oviform ; they are fusco-testu- 

 ceous. Eyes prominent, transverse, evidently cmarginatc 

 in front. General ground-colour piceous. 



Its systematic position is near A. /anitr/inosus (9G8). 



Length (rost, inch) 1^; breadth ;^ line. 



Invercargill. One specimen on cardboard submitted for 

 identifieatiou by Mr. A. Philpott, after whom I have 

 named it. 



[To be continued.] 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



June 16th, 1909.— rrof. W. J. Sollas, LL.D., Sc.D., F.R.S., 

 rresident, in the Chair. 



The followiug communications were read : — 



1. ' The Carboniferous Limestone of County Clare.' 

 By James Archibald Douglas, M.A., B.Sc, E.G.S. 



The district with which this paper deals forms the westernmost 

 limit of the great ceutral Carboniferous Limestone jdaiu of 

 Ireland. 



The limestone floors nearly the wliole of Eastern Clare, from the 

 southiru shore of Galway Bay to the banks of the Sbannon. This 

 area, for the purposes of discriptioii, is divided into two main 

 disl riots. 



The whole of the northern region is formed by a vast elevated 

 plateau of Upper or Viscan Limestone, with a surface more than 

 100 square miles in extent, which rises on the north and east 

 in steep terraced chffs, but to the south-west dips gently below 

 the so-cnlkd ' Coal-Measure' Scries. The surface of this plateau is 

 formed of bare rock, devoid of vegetation and presenting the 

 typical appearance of a Karst landscape. The rainfall is consider- 

 able, but is nearly all cariied off by subterranean channels. 



The southern district presents a totally different aspect. The 

 high ground is no longer formed of limestone : that on the east 

 being formed by Old Red Sandstone and Silurian rocks, that on 

 the west by Coal-Measures. The older formations appear as two 

 anticlinal tlexuri-s with a north-easterly trend, forming the mountains 

 of Slieve Aughty and Slieve Bernagh, between which lies a broad 

 syndine of Carboniferous Limcjitone. The margin of this syndine 

 is formed by Tournai^ian shak-s and limestone, the su<'cessive zones 



Aim. (0 Mag. X. Hist. .^er. 8. Vol. iv. 12 



