THE MANUAL OF CONCHOLOGY. 



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Founded by the late Geo. W. Tryon, Jr., and continued by Henry A. Pilsbry, Sci. P., 

 for the Academy of Natural Sciences of Philadelphia. 



The Manual of Conchology is a fully illmiratrd monography nf recent mol'usks. 

 Issued in octavo form, in quarterly parts. Each part ooinpris?s 64 (or more) pages of 

 lett •? press, and 15 to '20 plates. 



The Fii^sih Series, Marine Univalves, of which seventeen volumes have appeared, is 

 now fnishel as planned by its illustrious founder. Of the SEGOND Series, Terrestrial 

 Molluscs, Eightet n Volumes havo been published, completing Helix with index. A few 

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

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

 Catalogue or Check list, can also be had at §1.00 each. 



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

 $1.00 each. 



The Mmograph of the Urocnptidic has also been completed, and Vol. XIX is now in 

 progress, finishing the study of the Achatinidv. 



Prices:— 1'lain (unc lored) edition, $3.00 per part. Colored edition, £5.00 per part. Fine 

 edition (both colored and India-tinted plates), $?.00 per part. 



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



S. RAYMOND EGBERTS, Treasurer, 



P. O- Address, GLEN HUGE, 1SEW JERSEY, U- IS- A- 



An illustrated CATALOGUE OF JAPANESE MARINE MOLLUSKS, by P- Stearns 



and II. A Pilsbry. Paper, §2.50. 



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