146 PROCEEDINGS OF SOCIETIES. 



procured beautiful seams of Wavellite in the shales near the base of 

 No. 6. 



Near Limerick, the beds of No. 4 greatly resemble those about 

 Dublin ordinarily known as Calp. Towards the west these seem to be- 

 come more purely calcareous, as they probably do also towards the 

 south, so that, eventually, their distinctive characters become oblite- 

 rated. Between Shanagolden and Foynes they may be distinctly seen 

 to pass^ under the comparatively thin group of the upper Limestone, as 

 in section No. 2. 



UPPER LIMESTONE ' CALP, OR MIDDLE LIMESTONE 



Section No. 2. 

 Scale, vertical and horizontal, = 6 in. : 1 mile. 



The thinning out of the Upper Limestone on the west side of the 

 county of Limerick is very instructive, as suggesting the possibility of 

 its thinning out altogether in some localities. Possibly this may be the 

 true interpretation of the great thickness of the Calp of Dublin. It 

 may be, that all the upper portion of the Carboniferous Limestone here 

 assumes the Calp character, and that the Coal-measure shales would 

 rest upon the Calp of the central counties of Ireland, without the inter- 

 vention of any upper Limestone ; or the upper Limestone may come in 

 its true character, as a light-gray fossiliferous limestone, only in local 

 patches, as suggested in the County or Index Geological Map of the 

 county of Dublin. 



DUBLIN NATURAL HISTORY SOCIETY. 



FRIDAY, APRIL 3, 1857, 



Professor W. H. Harvey, M.D., M.R.I.A., F.L.S., President, 

 in the Chair. 



The Minutes of the previous Meeting having been read and signed, — 



The President rose, and made the following remarks — 



We had been summoned to meet to-night, a week in advance of our 

 usual time, in consequence of the second Friday of the month falling on 

 Good Friday ; but instead of proceeding with the essays of the evening 

 it becomes my unexpected and painful duty — in compliance with the 

 unanimous wish of your Council — to move that this meeting adjourn to 



