REPORT ON THE LAND AND FRESHWATER 

 SHELLS OF YORKSHIRE. 



The Editors of the J.C, having been requested by the York- 

 shire Naturahsts' Union to prepare a report on the Land and 

 Freshwater Shells of the county, giving a full list of localities for 

 every species and variety, desire to enlist the co-operation of con- 

 chologists. Not only do they desire to receive full county 

 records and lists, but as they are combining with the local 

 matter a new revision of the British species, embodying results 

 of investigations since the publication of Dr. Jeffreys' book, 

 they wish to be favoured with the temporary loan of critical and 

 closely allied species and varieties from any part of the world for 

 the sake of comparison. All specimens will be carefully returned 

 free of expense, or if desired, arrangements will be made for 

 their acquisition by purchase or exchange. The first portion 

 of the report is already published in the "Transactions" of 

 the Yorkshire Naturalists' Union and includes the Conchifera. 

 Address all Communications to — 



JOHN W. TAYLOB., 

 "Journal of Conchology " Office, 



St. Ann St., LEEDS. 



EXCHANGE. 



Zonites excavatus, C. tridens var. crystallina, and C 

 tridens var. Nouletiana offered in exchange for other species or 

 varieties. — John W. Taylor, St. Ann Street, Leeds. 



Offered. — Duplicate Land and Marine Shells from South 

 Africa, the West Indies, &c. Wanted — Foreign Shells. — 

 J. S. Gibbons, 2, Belmont Terrace, Portswood, Southampton. 



Wanted. — Any of the following in exchange for 28 parts of 

 Sowerby's "English Botany." — Rossmassler's " Iconographie," 

 3 vols., coloured plates, Jeffreys' "British Conchology," 5 vols., 

 coloured plates, or an equal number of parts of the "Journal de 

 Conchyliologie." — J. D. Butterell, 26, Coltman Street, Hull. 



—:o: 



AUSTRALIAN SHELLS. 



W. T. BEDNALL, ADELAIDE, SOUTH AUSTRALIA, 



Will supply parcels of Australian Shells, with correct names and 

 localities from los. upwards, postage included. Where possible, 

 requests for special genera or species will be complied with. 

 Many hundred species of Australian and South Sea Island Land 

 and Marine; Freshwater not extensive. Reference: — Mr. J. W. 

 Taylor, editor of this journal. 



Address.— W. T. BEDNALL, 



Adelaide, S, Australia. 



