THE MANUAL OF CONCHOLOGY. 



— "*^~~«* — -"■ 



Founded by the. late Opo. \V. Tryon, Jr., and continued by Henry A.. Pilsb:y, Sci. D., 

 for the Academy of Natural Sciences of Philadelphia. 



The Manual of Conchology is a fully illustrated monography of recent niol'.usks. 

 Issued in octavo form, in quoitcrly parts- Each part comprises 61 (or more) pages of 

 letterpress, and 15 to 20 plates. 



The FlRSm Series, Marin ■ Univalves, of which seventeen volumes have appeared, is 

 now fnished as planned by its illustrious founder. Of the Gegomd Series, Terrestrial 

 Molluscs, Eighteen Voluines have been published, completing Helix with index. A. few 

 copi s of Vol- IX of this series, "fiuide to the Study of He lie. s," will be. sold S'parately at 

 the regular subscription price. Separate copies of the Index, suitable for th> pu p se of a 

 Catalogue or Check list, can also be had at fcl.OU each. 



The Monograph of the Bulimi is now completed with Index. Separate copies of Index, 

 §1.00 each. 



The Minograph of the Urocoptid.c has also been completed, and Vol. XIX is now in 

 progress, Enishing the study of the Achatinide. 



Prices:— Plain (uncelored) edition, g3.00 per pait. Colocl edition, J.5.00 per part. Pine 

 edit'on (both colored and India tinted plates), £"■"" per part. 



For further information or descriptive circular, with sample plate of Manual, address 



S. RAYMOND ROBERTS, Treasurer. 



P. O- Address GLES lUi'GE, 1NEW JEKSSV, V S. A- 

 An illustrated CATALOGUE OF JAPANESE MA1IIKE KO^LUSKS, by F- Stearns 

 and II. A Pilsbry. Paper, $2.5<>. 





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