( 2 [Proc. B.N.F.O., 



i. Micropegmatitic granite, with coarse hornblende and 

 sphene, and secondary epidote in abundance. Probably from a 

 contact between granite and diorite in the northern metamorphic 

 areas. No crush-effects subsequent to the consolidation of the 

 granite. From Derrybeg, near Limavady. 



2. Probably a sediment altered by contact-metamorphism, 

 with characteristic brown colour spots, like those of the " spotted 

 slates" of metamorphic aureoles. From " Hillman's Fancy," 

 Coleraine. 



3. A very beautiful augite-andesite, with a brown glassy 

 ground. Some of those of Devonian age in Scotland are equally 

 well preserved, and this is not like any of the Cainozoic lavas that 

 I have seen from Ireland. But it might come from one of the 

 andesites in the Fintona Old Red Sandstone. From Heagles, 

 near Ballymoney. 



4. Biotite granite. Like that of Barnesmore, but many 

 northern Irish biotite granites are of this type. From Sand-hills, 

 Portstewart. 



5. Coarse ophitic diorite, now much altered, in which it 

 may be concluded that hornblende replaces original pyroxene. 

 From Armagh. 



6. A beautifully fresh olivine-basalt, with glassy ground and 

 handsome porphyritic olivine. No doubt from one of the 

 Cainozoic eruptive masses, and very probably a lava. From 

 Ballast Pit, near Railway Station, Limavady. 



(Signed) 



James Orr, Hon. Sec. of the Section. 



Report of the Zoological Section. 



Two meetings of the Section have been held during the 

 Session. At the first, in December, papers were contributed by 

 Messrs. N. H. Foster, J. Maxwell, and A. W. Stelfox. Mr. Foster 

 gave a most interesting paper on " Migration of Birds ; " Mr. 



