i66 The Irish Naturalist. • September^ 



R. Ll. Pkakgkk spoke oii the Phanerogams and Ferns. 



R. J. UsSHER referred to the Birds, and exhibited a number 

 of bones of the Great Auk, collected from the sand-dunes 

 adjoining the hotel. He concluded by proposing a vote of 

 thanks to the conductor (Mr. Praeger), which was seconded 

 by W. F. DE V. Kane. 



R. Ll. Praeger said that thanks were due not to him, but 

 to R. Welch and A. W. Stelfox, who were entirely respon- 

 sible for the arrangements, which it was a simple matter tc 

 him to carry out. 



A. \V. Stpxfox said that thanks were due not to him and 

 Mr. Welch, but to Mr. Manning, who had himself arranged 

 practically the whole programme ; and the meeting adjourned 

 amid applause and laughter. 



The members subsequenth' spent some time examining the 

 various objects arranged on the table for exhibition, in which 

 the}' were joined by numerous visitors staying in the hotel. 



The following morning the party broke up, the majorit}' 

 proceeding by the morning train to Belfast. 



GKOI.OGY. 



BY J. DE W. HINCH. 



The rocks involved in the geological history of the district 

 visited by the P'ield Clubs are not only of high antiquity — 

 being referred to early Palaeozoic times — but in every case 

 the original strata have undergone a greater or lesser 

 degree of alteration accompanied b}- intense earth-move- 

 ment, resulting in the production of a complex of highly 

 metamorphosed rocks in which each member of the complex 

 has largely lost its original characters. 



Stratified and igneous rocks occupy about equal portions of 

 the district, the stratified series of quartzites, mica-schists and 

 crystalline limestones occurring in the Krrigal and Muckish 

 range in the north-west, and in the range of Lough Salt and 

 Scraigs in the south-east of the countr}-. 



The igneous rocks consist of a number of interesting 

 granites, often foliated, forming the Glendowan and Derry- 

 veagh ranges, while altered basic rocks appear as intrusive 

 sheets of epidiorite in the stratified series. 



