JOURNAL OF CONCHOLOGY. 27 1 



seven or eight stories high, is built upon a piece of ground, 

 formerly a marsh. It is some two hundred yards from the 

 sea, and rises from the sea-level. The ponds contain warm 

 water which has originally been heated in the interior of the 

 mill. They contain numerous gold fish and various aquatic 

 plants. The Physte are found inhabiting these ponds in 

 company with Z. peregra. The shells of the former species 

 have also been taken from a kind of dry subway proceeding 

 under the mill. 



I have just lately seen at the house of Mr. Rae a number 

 of living L. peregra and P. acuta, which have just arrived from 

 these ponds at Aberdeen, thus proving conclusively that the 

 species still continue to exist in that locality in water of a warm 

 temperature, but in the open air. How they came there may 

 always remain a mystery. That they have been introduced is 

 certain. They may have been brought from the continent with 

 the gold fish; or with aquatic plants, as is probably the case at 

 the Botanical Gardens at Regents Park, and Kew. Certain it 

 is that species like P. acuta and B. goodalli, living under such 

 artificial conditions, can only be ranked as British shells by 

 courtesy. 



New Cross, 1890. 



CONCHOLOGICAL SOCIETY 

 OF GREAT BRITAIN AND IRELAND. 



PROCEEDINGS. 



179th Meeting, June 4th, 1890, 



Held at the Philosophical Hall, Leeds. 



Air. John W. Taylor, F.L.S., Vice-President, in the chair. 



Candidates Proposed for Membership : Messrs. Frank Turton, 

 Penistone (nominated by Messrs. L. E. Adams, B.A., and William Nelson); 

 and Albert Wood, Sutton Coldfield (by Rev. Herbert Milnes and Mr. C. 

 Jefferys). 



Donations to Library announced and thanks voted : — The Naturalist; 

 The Nautilus (Mr. T, D, A, Cockerell); Proceedings of the Linnean Society 



