IT TANTED.— HELIX NEMORALIS and VARIETIES from various localities. 

 \\ Good Exchange given. — Address, F. R. Fitzgerald, Clifford House, 

 Harrogate. 



EXCHANGE.— Wm. H. Weeks, Jun., 508, Willoughby Avenue, Brooklyn, 

 New York, and John Ritchie, Jun., Corresponding Secretary of the Boston 

 Scientific Society, Box 2725, Boston, Mass., U.S., would be glad to exchange 

 AMERICAN and other SHELLS for BRITISH MARINE, LAND, and 

 FRESHWATER SHELLS. 



FOR SALE. —A Fine BRITISH MARINE COLLECTION, comprising 

 Fusus norvegica, F. Turtoni, F. bernicensis, Buccinum Dalei, Saxicava nor- 

 vegica, Natica graanlandica, N. islandica, N. sordida, and about 40 to 50 other 

 British Marine Species, some rare and all in fine condition, for 10 Guineas ; with 

 the addition of a British Land and Freshwater Shell Collection (Fine Unionidse)— 

 ^12. — Address, F. M. Hele, Fairlight, Elmgrove Road, Cotham, Bristol. 



THE DARTS OF THE BRITISH HELICID^.— Any information respect- 

 ing the Structure, Function, Development, Variation, &c., of the above will 

 be welcomed and gratefully acknowledged by W. E. Collinge, 7, Willow Terrace 

 Road, Leeds. 



ALBUM OF CONCHOLOQISTS. 



The Editor of the "JOURNAL OF CONCHOLOGY" purposes forming 

 an Album of Conchologists, and would be very glad to receive copies of Photo- 

 graphs, with signature, &c., of those persons willing to co-operate If desired 

 the favor willbe reciprocated. The following have recently been added to the 

 Album ; — Walter Crouch, F.Z.S., H. Wallis Kew, F.E.S., W. Whitwell, 

 J. Madison, J. W. Williams, and T. W. Reader. 



Address— J. W. TAYLOR, Sovereign Street, Leeds. 



IlSr F E,EF.A-K.-A-1'Z 01Sr- 



A 



Monograph of the Land & Freshwater MoUusca 



OF THE BRITISH FAUNA. 



INFORMATION URGENTLY WANTED FOR MONOGRAPH. 



I.- — Where did Layard describe Testacella aurigasier'i Mr. Layard himself has 



now forgot. 

 2. — Living specimens of Testacella sciihibwi wanted. 

 3. — Authentically named specimens of Testacella bisiilcata (living preferred) on loan 



or otherwise. 

 4. — Information about the distribution of Helix cantiana. 



Assistance Desired Immediately — Specimens of Testacellse from any locality. 



Extracts from, or loan of, any work, to which we have not access, having 



reference to Testacellse. 



Co-operation is invited from all Conchologists interested in the above subject. 



Any information or specimens illustrating the LIFE HISTORY — structure, 



development, variation, distribution, &c.— will be welcomed and carefully 



acknowledged. _ ^*'a'7-m ;— Mr. J. W. TAYLOR, Office of the Jowmal of Con- 



chology, Sovereign Street, Leeds. 



