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THE MANUAL OF CONCHOLOQY. 



•»■ c» ■- 



Founded by the late f'co. W. Tryon, Jr., and continued by Henry A. Pilsbry, Sci. D., 

 for the Academy of Natural Sciences of Philadelphia. 



The Manual of Conchology is a fully illustrated monography of recent moUusks. 

 Issued in octavo form, in qua:terly parts- Bach part comprises tjl (or more) pages of 

 lelt-rpress, and 15 to 20 plates. 



The Kii^sti Series, Marine Univalves, of which seventeen volumes have appeared, is 

 now fnishol as planned l.y its illu-trious founder. Of the Sego:jd Sei^IRS, Terrestrial 

 Molluscs, Eighteen Volumes have been published, completing Heine with index. A few 

 copies of Vol. IX of this series, "Guide to the Study of Helices," will be sold separately at 

 the regular subscription price. Separate copies of the Index, suitable for tli i in p se of a 

 Catalogue or Check list, crm also be had at gl.00 each. 



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

 51.00 each. 



The Mmngraph of the Urocoplidtz lias also been completed, and Vol. XIX is now in 

 prtgress, Crushing the study of the Acltathn&t. 



1 rices:— I 'Iain (unci lored) edition, >->.U0 per part. Colored edition, £5.00 per part. Fine 

 ei.'.i on (both eolosci anil Inc'ia-t'nted plates), $i.00 per part. 



1 fmtli r information or descriptive circular, with sample plate of Manual, address 



S. RAYMOND ROBERTS, Treasurer. 



P. O Address, GLEN VAU.V. NEW JEKSEV, U- S A- 

 An illuMrntad CATAMNil'E OF JAPANESE RM1HKE MOLLIJSKS, by F. Stearns 

 and II. A Filsbry. Paper, f.2.50. 



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