PROCEEDINGS OF SOCIETIES. 17 



DUBLIN UNIVERSITY ZOOLOGICAL ASSOCIATION. 



NOVEMBER 4, 1854. 

 R. BALL, LL.D., President, in the Chair. 



Mr. Wright having announced the following donations to the Library, viz. : 



" The Twenty-second Annual Keport of the Royal Zoological Society for Ire- 

 land," from Dr. Ball ; 



" The Naturalists' Repository," by E. Donovan, F.L. S., five vols., from a Lady ; 



"The Commissioners' Report of the Fisheries of Ireland," from J. W. Ffennell, 

 Esq., Commissioner of Fisheries ; 



"The Natural History Review," Vol. I., from the Editors; and 



" Insecta Maderensia," by T. V. Wollaston, Esq., from the Author ; 



The best thanks of the Association were ordered to be given to the several 

 donors. 



Dr. Ball mentioned that the special thanks of the members were due to Mr. 

 Wollaston, for his donation of his u History of the Coleoptera of Madeira ;" it had 

 been published in a very costly manner ; and he hoped this splendid gift would 

 induce some of our other members to add to the formation of our Library. 



The President demonstrated the method he had adopted for the aeration of the 

 aquatic vivaria in the gardens of the Royal Zoological Society. He stated that a 

 house had been constructed, round which twelve tanks had been erected, so that 

 the sides of the tanks, being inserted in apertures of the wall, and being framed, 

 present, from the interior of the house, the appearance of so many animated 

 pictures. Above the tanks so placed, is carried a leaden tube, from which pro- 

 ceed twelve small gutta-percha tubes, the ends of which are perforated with small 

 holes, and lie along the bottoms of the tanks, concealed in the rockery ; the 

 leaden tube is connected with a simple blowing-machine, worked by a handle, 

 which may be used by a visitor. On pumping, air is forced up from the bottom of 

 each tube in small bubbles, and presents a highly ornamental appearance ; whilst 

 its value has been proved by the improved condition of the many fishes and other 

 animals contained in the several tanks. It is intended to apply this process to the 

 breeding of salmon ova ; and, with some modifications, it appears to promise success. 



Mr. A. R. Hogan read the following paper from J. Walter Lea, Esq., Cor- 

 responding Member : 



NOTES ON THE DIURNAL LEPIDOPTERA OF SOME PORTION OF WORCESTER- 

 SHIRE. PART I. 



Fruitful as several of the midland counties of England are in Lepidoptera as, 

 for example, Warwickshire, which is famous none that I have in any degree 

 explored surpass, if, indeed, they equal, the productiveness of Worcestershire. 

 Judging from the success which I have met with in but a comparatively small 

 portion of the county, I should think that a careful search throughout the whole 

 might be rewarded with the capture of a considerable portion of our valuable 

 butterflies. The district which I have explored more or less accurately at various 

 times between the years 1840 and 1850 is not very large, including the neigh- 

 bourhood of Bewdley, bordering on Shropshire, and the right bank of the Severn, 

 from that town nearly to Worcester, taking in part of the Malverri, and the 

 Abberley Hills ; also, the neighbourhood of Kidderminster. It is a favourable 

 district, even at first sight, as it includes woods, commons, marshy places, hills, 

 valleys, and river sides in a word, most varieties of country. Various circum- 

 stances have prevented me from doing anything like as much as I- ought other- 

 wise to have done in the time ; and I dare say that good work during two summers 

 would be a perfect equivalent for my long- interrupted and rather desultory inves- 

 tigations, extending over a period of nearly ten years. The arrangement and 

 nomenclature which I have made use of, are those adopted by Mr. Westwood in 

 his beautiful work, undertaken in conjunction with Mr. Humphreys. I insert the 

 names of all the allowed species, in hopes that the experience of others may be able 

 to fill up some of the vacancies. 



VOL. II. & 



