294 



[Proc. B.N.F.C., 



and " Dimorphism." Foraminifera are said to be isomorphous, 

 when they are of different orders, distinct in shell structure, but 

 exhibiting similar external outlines. He gave as examples of this 

 group, firstly, Cornuspira involvens, Ammodiscus incertus, Spiril- 

 lina vivipara, and secondly, Globigerina bulloides and Haploph- 

 ragmium globigerinifor?ne. They are said to be dimorphous when 

 they show complex forms, commencing with one form of growth, 

 changing during development, and ending in another form. As 

 examples he gave Gaudryina, Spiropfecta, &c. 



After giving an interesting demonstration of the " floating " 

 process, the lecturer dwelt on his success in finding these marine 

 organisms in nearly all boulder clays, even in clay from the top of 

 Divis, from Wolfhill, from the Wicklow Hills, from the hills of 

 Ayr, and from a height of 1,300 feet on Moel Tryfaen. He then 

 referred briefly to rival glacial theories and advised those present 

 to study and judge for themselves. In doing so he paid a well- 

 merited tribute to a distinguished fellow-member, Mr. S. A. 

 Stewart, A.L.S.,* by whose wide knowledge and original thought 

 our local Geology and Botany have been so largely extended. 

 The lecture was illustrated by beautiful diagrams, and at the con- 

 clusion Mr. Wright showed a number of very interesting micro- 

 scopic slides, and explained the process of mounting Foraminifera. 

 The proceedings terminated with a very cordial vote of thanks 

 to the lecturer, moved by Mr. Tomlinson, and carried by 

 acclamation. 



"some connemara plants." 

 At the second monthly meeting of the Botanical Section, 

 held on 16th December, Mr. W. J. C. Tomlinson exhibited some 

 mounted Connemara Plants, and gave a brief description of their 

 habitats. The Chairman of the Section, the Rev. C. H. Waddell, 

 B.D., presided. 



*As this Report passes through the press the sad news of Mr. Stewart's 

 death is announced. The Members of the Club will long mourn the departure 

 of this distinguished worker. 



