1910-1911.] 



40I 



islands of Skye and Eig. The most interesting point about this 

 Beetle is that it only lives in mountain loughs from which there 

 are no outlets, and therefore contain no trout. 



Mr. H. L. Orr reported the capture of Vespa germanica at 

 Greyabbey, a Wasp which, though common in England, has only 

 once been taken in Ireland previously. 



Mr. Robert J. Welch spoke of the work done by various 

 members of the Club in connection with the survey of Clare 

 Island, in Mayo, and also on that accomplished by the Concho- 

 logical members during the present year, his notes on a recent 

 visit to the Dingle Promontory, in Kerry, being of special interest, 

 as until this year no Land or Freshwater Shells had been recorded 

 for this the most Western part of the Irish mainland. 



Mr. Joseph Maxwell and Mr. A. W. Stelfox, having each 

 given a few notes on their respective hobbies, the meeting closed 

 with an informal discussion on some of the many points raised 

 during the evening. 



THE ONYX OF SPANISH BAY, GIANT'S CAUSEWAY ; 

 ITS OCCURRENCE AND ORIGIN. 



At a meeting of the Geological Section on 14th December, 

 Mr. J. Strachan read the following paper : — Visitors to the Giant's 

 Causeway are frequently asked to purchase rather crude collections 

 of specimens from the local guides. Fragments of red flint (locally 

 called "jasper"), limestone pebbles, chips of calcspar, crystals of 

 felspar, geodes of " needlestone " and other zeolites, fossil shells, 

 flint flakes, and even seaweed rub against each other in these 

 curious collections. The local guides, too, have an astonishing 

 knowledge of mineralogy, referring the most fearful and wonderful 

 names to no less an authority than " Professor Gray of Belfast." 

 Apart from the versicoloured fragments of flint, so common 

 everywhere in Co. Antrim, only two of the specimens thus offered 

 for sale are genuine Causeway productions. One of the latter is 



