PHOTOGRAPHIC CONCHOLOGY, a sequence to the Conchological Miscellany. The flrst application of 
lihotognipliy to Bcientilic natural history : Is. per plate coloured, or Sd. i)!ain. Part 1 (two plates) can 
only be had coloured, the difficulty as to the blue and yellow rays not having at Drst been overcome. 
Part 2 (three plates to complete Unio and Anodonta), and part 3 (two plates of Cyrense), are now ready 
plain (July 18C3). 
EXCHANGE OF SHELLS. 
Sylvanus Hanley, of 1, Hanley Road, Horasey Rise, Middlessex, offers a return, either in specimens or 
conchological works, for any parcel of good shells (British or Foreign) forwarded to him. Broken, or very 
common shells are not worth the carriage. Collectors (especially colonists) gratuitously assisted in the 
sale of their specimens. 
CONCHYLIORUM COMMUTATIO. 
Pro exemplis conchyliorum (haud nimis vulgarium) bene conservatis, vel alia conchylia (et prsesertjm oras 
Britannicae) vel libros de conchologia (et maxime opera sua) dabit Sylvanus Hanley, 1, Hanley Road, 
Hornsey Rise, Middlesex. 
MIIMERALIUM ET CONCHYLIORUM 
maximan copiam, pro pretiis justis, vendit Bryce Wright. Testaceorum Britannicorum collecti onem, qu» 
continet species accurate nominatas, 200, pro £6 6s. vel species 300, pro £12 12s. nunc oflfert. — 36, Gt. 
Russell Street, Bloomsbury, London. 
BOOKS ON SHELLS. 
at Williams and Norgate, Henrietta Street, Covent Garden. 
IPSA LINN^I CONCHYLIA and SUPPLEMENT. The shells of Linnajus determined from his manuscripts 
and collections. A reprint, likewise, from the rare authentic editions of his Sy sterna Naturae and 
Mantissa, of the Teslacea. The Supplement (price 2s.), which contains the manuscript additions and 
corrections of Linnaeus to his ' Museum Ulricae,' is now given in. The coloured plates by Sowerby. 21s. 
HANLEY' S CONCHOLOGICAL MISCELLANY, in 40 quarto plates, illustrative of Melania, Cyclostoma, 
Ampullaria, Ostrea, Melo, Amphidesma, &c., 26s. A very few copies have been coloured at 52s. 
TURTON'S DITHYRA BRITANNICA, The bivalve shells of Great Britain. Large paper edition : twenty 
coloured quarto copperplates. 50s. 
PHILIPPI'S ABBILDUNGEN CONCHYLIEN. 144 coloured quarto plates of new, or little known 
shells. £7 4s. 
HANLEY'S RECENT BIVALVES or APPENDIX TO THE INDEX TESTACEOLOGICUS. An 
illustrated and vastly enlarged English edition of that portion of Lamarck's Animaux sans Vertebres : 
960 figures. Plain £1, coloured £2, large paper coloured 60s. 
HANLEY'S MONOGRAPH OF NUCULIDJE. 177 coloured figures. 15s. 
HANLEY'S MONOGRAPH OF TELLINA. 268 figures chiefly uncoloured. ISs. 
PHOTOGRAPHIC CONCHOLOGY, as above. 
