i8o The Irish Naturalist. August, 



The material from which the above were obtained weighed 

 only -Qi oz. tro}^ It was the first weathered white limestone 

 which we had seen. The Foraminifera in it were calcareous 

 and in this respect differed from those found in the flints, the 

 tests of which alone are calcareous, the interior of the shells 

 being silicious. The materials consisted almost exclusively 

 of small Foraminifera and minute spherical bodies, being the 

 separate chambers of these Microzoa ; they were probably to a 

 great extent derived from Globigerina cretacea, G. csq^iilateraliSi 

 and Textiilaria globidosa; it frequently happened that the 

 chamber of these species became detached as the specimens 

 were being lifted for mounting. The following are some of 

 the rare forms found — Bolivina serrata, B. obi>oleta^ Lingulina 

 cari7iata, Lageria gracillima, L. lagefioides, and the variety 

 teimistriata, both trigonal and quadrigonal forms. 



Mr. H. ly. Orr collected a little powder from hollow flints at 

 Ball3^castle Harbour quarries. This locality I know of old to 

 be a very good one for large Nodosaria (sp. ?), and I hope to 

 obtain a larger mass of material to wash soon. In the sample 

 Mr. Wright finds Flabellina pulchra^ d'Orb. ; F. reticulata, 

 Rss. ; Textidaria /z/r;7'.s", d'Orbi ; T. globulosa, Khr. ; Bulhniiia 

 Presli, Rss. ; B. brevis, d'Orb. ; Cristellaria 7Vttilata, Lamk. C. 

 sp. ? ; Globigerina cretacea^ d'Orb. ; Orbulijia tiniversa, d'Orb. ; 

 Pla7iorbulina exculpta^ Rss. ; P. ammo7ioides, Rss. 



The last species was common, the others rare or represented 

 by onl}^ one specimen, but the quantity of powder was very 

 small. The few specimens in it Mr. Wright states were mostly 

 large in size. 



Belfast. 



