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



recalling to mind the recent excursion of the Club to the large 

 mines of that mineral under Irish Hill. Another recent ex- 

 cursion of the Club to South Donegal, was also illustrated by 

 various rock specimens from that locality, exhibited by 

 James Musgrave, Esq. Mr. T. M. H. Flynn, of the Bessbrook 

 Granite Company, amongst a series of American and Irish 

 granites shown by him, had a fine specimen of polished red 

 granite from the Barnesmo] e Mountain, visited by the Club on 

 same excursion, and which promises, when the Donegal railway 

 is opened, to become of no little commercial importance. On 

 the same table Mr. Joseph Wright, F.G.S., exhibited under the 

 microscope a series of foraminifera, gathered during the same 

 excursion, being the result of dredgings taken in Killybegs 

 Harbour. Among them are the following rare forms : — 

 Trochammina Shoneana^ Lituola glomerata^ Bulimina sti-bteres, 

 Operculina ammonoides^ &c. Several members devoted a table 

 to the exhibition of a tank and jars of living specimens, dredged 

 by them a few days previously off Donaghadee, they also showed 

 examples of dredging implements, and tackle to illustrate such 

 work. A number of members, as is usual, had their microscopes 

 at work. The leading feature amongst these was the fine series 

 of slides, lent through the kindness of John Murray, Esq., 

 naturalist to the Challenger Expedition, illustrating the results 

 of that voyage, some of the objects shown being entirely new to 

 science. These included a series of preparations made by the 

 Challenger staff, of skimmings from the surface of the ocean, 

 showing various pelagic foraminifera, and many species of 

 minute crustaceans, &c., of most curiously interesting and 

 instructive forms.— Ordulma, effntaining a perfect Globigerina 

 within its delicate shell ;— Orbitolites up to three fourths 

 of an inch in diameter ; Challengeria Naresii and many other 

 remarkable rhizopodal forms were beautifully shown ; also, 

 specimens from a recent dredging near Faroe, containing a great 

 variety of large arenaceous forms. Amongst the miscellaneous 

 microscopic objects shown were several examples of a very 

 minute arenaceous foraminfer, Textularia biformis, new to 



