THE MANUAL OF CONCHOLOGY 



Founded hv the late Geo. W. Tryon, Jtin., continued by Hcnr\ A. Pilsbry, 

 Sc. I)., tor the Ac idaniy nf Natural Sciences of Philadelphia. 



The Manual of Coneholog'y is a fully illustraicd monography of recent 

 moUusis. I>sucd m nctufi form, in quarterly parts. Each part comprises 64 

 (or more) pages of letterprei-, and 15 to 20 plates. 



The First Skkiks, Marine Univalves, of which seventeen volumes have 

 appeared is now Iniished as planned by its illustrious founder. Of the 

 Secono Sij;ii:s, 'IV rroli ial Molluscs, si.vlcen volumes have been publishea, 

 completing Hki i.\ with hide.x. A few copies i>f Vul. IX, " GlUDiC ro thk 

 Stuijv ok Hi irks," will be sold separately at the re,L;ular subscription 

 price. Separaie copies (it the Index, suitable for the purpose ul a Catalogue 

 or Check lisl, can als;, be had at .$1.(10 each. 



Tiie .Mi:ii(j;4i .(ph. (ii ihi lUiliiiii i.s now completed with. Index. Si.-parate 

 c.pie- ol liide.v, .$1.00 e.icli. 



The monograph of the I'locoptitlac b.as also been completed, and Vol. X\'I1. is 

 n(jw in progress, with a study of the Achatinidac. 



Prices :— Plain, (uncoloured) edition, $3.00 per part. Coloured edition, $5.00 

 per part. !''ine edition (both coloiued and India-tintetl plates) $8.00 per part. 



For fuilher iiiformaiioii "V tlescriptive circular, with sample plate of Manual, 

 address : — 



S. RAYMOND ROBERTS, Treasurer. 



p. O. Address GLEN RIDGE, NEW JERSEY, U.S.A. 



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