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445 



GEOLOGY AT THE BRITISH ASSOCIATION. 



J. LOMAS, F.G.S. 



The British Association receives a warm welcome whenevei 

 it holds its brief autumnal Session, and Dublin was not behind 

 other places in extending abundant hospitality to those who 

 were able to attend the meeting. 



Section C has special reason to remember the admirable 

 arrangements made for the comfort of members, and under 

 the guidance of Mr. H. J. Seymour and others, a charming 

 series of excursions was organised, which enabled us to become 

 acquainted with the salient geological features of the neigh- 

 bourhood. 



Professor G. A. Cole contributed largely towards this end 

 in the interesting lecture he gave immediately after the Presi- 

 dent's Address. Other papers on Irish Geology were contri- 

 buted by Messrs. R. J. Ussher, H. J. Seymour, E. T. Newton, 

 Dr. Scharff, Mr. H. Bolton, the President, and others. 



A paper on the Castlepook Cave, near Doneraile, had for 

 its purpose a discussion of the Age of the Cave, from data 

 gathered from the organic remains entombed, and the phy- 

 sical features it displays. 



The conclusion arrived at favours it being of pre-glacial 

 age, and this corresponds with the general opinion regarding 

 the examples we have in Yorkshire, and other parts of the 

 north of England. 



Another paper on Irish Geology by Prof. Cole, dealt with 

 the former extension of the Cretaceous rocks to the west of 

 County Kerry. The occurrence of MiHolite Limestone and 

 •other rocks in the material brought by the dredge from the sea 

 bottom, leads to the opinion that these are derived from rocks 

 in situ, and forming the floor of the oceanic platform. 



The igneous rocks and associated sedimentary rocks of 

 Co. Mayo and Co. Galway were described by Prof. S. H. Rey- 

 nolds and Messrs. Gardiner, Muff and Carruthers. 



The President's Address on the Geological effects of Radium 

 was one of the most brilliant which ever proceeded from the 

 Chair of Section C, and promises to mark an epoch in our 

 conceptions of the structure of the earth, and the forces at 

 work in its interior. 



The Microscopical Structure of the Derbysnire Limestones 



1908 December i. 



F 2 



