WOlEl S-A_LE. 

 ''AMERICAN MARINE CONCHOLOGY, 



AXD 



IV{onograpl] of the Terrestrial IV|ollusca of the United States," 



\\itli Coloured Illustrations of all species, by GKO. W. TRYON, Junr. 

 T//C Lcttt-rJ>rcss of the above in one ■:>oluine ; the Coloitied Plates in two sc/>arate volume.-;. 



ALSO 



rnnro coi-ii-ection^s of sn£:r^]LiS. 



One, The Land and Freshwater Species from Southern California and 

 the Mississippi and Ohio Rivers and their Tributaries. 



(Several specimens of each species in good c<:)ndition and correctly named). 



The other, A Collection of the Marine Species from the Atlantic and the Pacific 

 Coasts of the United States (nc^t all named). 



The Collections were made by ( Iho. Dixox during a sojourn of nearly 20 years in America. 

 As there are many Duplicates, they would make se\er.al collections. 



G.D. would Jreftr the pnreliaser of tlie Sliclls Jiariiii; the three -.•oluines. and -would glaJly 

 foi'ward them f'l- the inspeetioii of any hona-fde eustoiner. 



NO REASONAKLK OFFER WILL KK REFUSED. 



Address .--GEORGE D9XON, GREAT AYTON, YORKSHIRE. 



THE CONCHOLOG-ICAL SOCIETY'S LIST OF 



British Land & Freshwater Mollusca, 



1S92- 



ComplUd h,i W. NELHON, W. DEN ISDN ROEBUCK, F.L.S., 

 ami J. W. TAYLOR, F.L.S. 



Price : 2d. each, by post 2|d. ; or 1/6 per doz. post free. 



This l.ist is to be obtained of the Honorary Treasurer (Lionel E. Adams, 

 B.A. , Rose Hill, Penistone, Yorkshire), or of the Honorary Secretary of the Con- 

 chological Society, who may be addressed at the Philosophical Hall, Leeds. 



A 



Monograpli of the Land & Freshwater Mollusca 



OF THE BPJTISH FAUNA. 



INFORMATION URGENTLY WANTED FOR MONOGRAPH. 



I, — Living specimens of Testacella sciitnlum wanted. 



2. — Authentically named specimens of Testacella hisiikala (living preferred) on loan 

 or otherwise. 



A.ssistance Desired Immediately — Specimens of Testacella^ from any locality. 

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

 reference to Testacellre. 



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

 Any information or specimens illustrating the LIFE HISTORY — structure, 

 DEVELOPMENT, VARL\TiON, DISTRIBUTION, &c. — will be welcomed and carefully 

 acknowledged. Address: — Mr. J. W. TAYLOR, Office of the Jouinal of Con - 

 chology. Sovereign Street, Leeds. 



