1895-96-] 3°3 



in the rere of the Museum, recently acquired by the Club. 

 This acquisition has enabled the Section to hold evening 

 meetings once a month, which have proved useful and in- 

 teresting ever since their commencement last June. The 

 lower room contains a large set of drawers kindly placed at the 

 disposal of the Club by the Natural History and Philosophical 

 Society, in which the collection of Irish rocks and erratics 

 accumulated during the three years of the Section's existence 

 are now placed. The collection still increases, giving in- 

 teresting proof of the marvellous variety, especially of igneous 

 rocks that are found in the North of Ireland. Some welcome 

 specimens from more distant Irish localities have also been 

 received. Among the specimens given by William Swanston 

 last year are two specimens of biotite rhyolite of great interest, 

 indicating an eastern locality for this lava not known before, 

 having been found by him near Orlock Point some years ago 

 as a dyke in the Ordovician rocks. Wm. Swanston promises 

 further to investigate the subject of his valuable discovery. A 

 recent visit in search of this dyke by Robert Bell and the 

 Secretary failed to find it, but two other dykes were noticed, 

 one being the common "mica trap " of older writers, the other 

 of a mica-aphanite which Prof. Cole described as closely re- 

 sembling a rock intrusive amongst the ancient rocks at Assynt 

 in Sutherlandshire. The Section feels much indebted to Miss 

 M. K. Andrews and R. Bell for valuable assistance rendered 

 in trimming, mounting, and labelling these collections con- 

 tributed by the various Members of the Section. R. Bell has 

 also contributed the first rock section for the microscope as yet 

 received. The Rev. John Andrew has presented his valuable 

 set of prize slides illustrating geological subjects. 



GLACIAL GEOLOGY. 



In the report of the Erratic Blocks Committee of the British 

 Association (1895), the glacial work done by the Club receives 

 favourable mention as regards results, and as being the first 



