THE MANUAL OF CONCHOLOGY. 



"•' €*- » 



Founded by the late Geo. VV. Tryon, Jr., and continued by Henry A. I'ilsbiy, Sei. D., 

 for the Academy of Natural Sciences of Philadelphia. 



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

 Issued in octavo form, in quarterly parts. Each part comprises til (or more) pages of 

 letterpress, and 15 to 20 plates. 



The FlRSm SERIES, Marine Univalves, of which seventeen volumes have appeared, is 

 now finished as planned by its illustrious founder. Of tho IIegoimd Series, Terrestrial 

 Mollusks, Eighteen Volumes have b'en published, completing Helix with index. A few 

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

 the regular subscription price. Separate copies of the Index, suitable for the purpose of a 

 Catalogue or Check list, can also be had at $1.00 rnch. 



The Monograph of the Buliini is now cjmpleted with Index. Separate copies of In\ .. 

 £1 nil each. 



The Mmograph of the l/'rocoptid.c has also been completed, and Vol. XIX is now in 

 progress, finishing the study of the Ashatiifle. 



Prices:— I'lain (unci lored) edition. :.du |„ m put. Colo-ed edition, $5.00 per part. Fine 

 edition (both colore. i and India-t'nted plats), §?.00 per j art. 



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



S. RAYMOND R02ERTS, Treasurer, 



P. O- Address, GLEN KlilGE, SEW JERSEY, V- S- A- 



An illustrated CATALOGUE OF JAPANESE MA1MSE KOLXUSKS, by F. Stearns 

 and II. A rilsbry. Paper, £2.50. 



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