1 8 The Irish Naturalist. January, 



DUBLIN NATURALISTS' FIELD CLUB. 



November 19.— The President, Mr. Greenwood Pim, in the chair. 

 Mr. W. B. Wright (Hon. Sec.) read a paper entitled "The Use of a 

 Waterfall," and explained its application to the study of glacial gaps. 

 Mr. R. lyi.. Praeger gave an account of the discovery of certain plants 

 during the f)ast 5'ear, which were of special interest, and constituted ad- 

 ditional records to those already published in Ii'ish Topo'^raphical Botatiy, 

 Specimens of the plants were exhibited. This paper is published in the 

 present number of the Journal. Mr. Pim showed a large number of 

 lantern transparencies of natural histor}- subjects, chiefly snap-shots 

 taken in the Zoological Gardens. Mr. H. J. Seymour (Hon. Sec.) 

 showed a set of photographs taken on the Club excursion to Lucan in 

 August last. Messrs. F. H. Rochfort Brady, G. W. Lamplugh, F.G.S., 

 F. M. Sellens, and A. H. Toppin, were elected members of the Club, and 

 four nominations for membership were received. 



NOTES. 



ZOOLOGY. 



Mysis relicta in Ireland. 



Mr. Kane gives us an interesting note (^Annals and Mag. Ahit. Hist. (7) 

 vol viii., 1901, pp. 391-397) on the first discovery in Ireland of this 

 remarkable shrimp-like Crustacean, b}" the late William Thompson, 

 The latter found it in the stomach of a Pollan taken in lyOugh Neagh, in 

 1851. Since that date Mysis relicta, Loven, has been discovered in many 

 fresh-water lakes in Northern Kurope as well as in North America. 



Mr. Kane now places on record further information as to the 

 occurrence of Mysis relicta in Ireland, having taken it plentifully^ in 

 Lough Erne as well as in Lough Neagh. In size, the Irish form seems 

 to approach more nearly to the Swedish race first described b}' Loven 

 than to the Russian. JNIr. Kane is to be congratulated for having taken 

 up the study of the freshwater Crustacea, a subject which might yet 

 lead to important discoveries, and which has hitherto been much 

 neglected by Irish zoologists. 



Gonepteryx rhamni in Co. Cork. 



A specimen of the Brimstone Butterfly, G. rhamni, was taken here on 

 15th May, 1901. I believe this is the first record of this insect's appearance 

 in Co Cork. 



Francis Stawei,!*. 



Mallow, 



