MANUAL OF CONCHOLOGYj 



STRUCTURAL AND SYSTEMATIC. 



WITH ILLU ^TRATIOI^S O F~~T H E SPECIES. 



By GEORGE W. TRYON, Junr., 



Conservator of the Conchological Section of the Academy of 

 JNatural Sciences of Philadelphia. 



The Third Volume (commencing January ist, 1881,) will contain descriptions 

 and figures of the Tritonid.^, Fusion and BaccmiD^. ' This volume w' Hnc lude 

 many species not comprised in any of the monographs of the above eenrrahiAerto 



^ \ttlVU8lT.^' '^h^tr'^^ "^•^^'>; ^^ P^^^'"^'^ ^' quar;:;i;ye"a;-;; peri £ 



.[Vol. IV (i6b2) will probably contain the eenera Nassa TnrhinplI^ Vr,l„to 

 Mitra, Columbella, Marginella, Oliva, Ancillariaf Harpa, etc!]' ^"'^'^'^'^' ^°^"^^' 



, ^ Completed Volumes. 



Vol. I. Cephalopoda. 1879. 



316 pp. 8vo., illustrated by ij2 plates, embracing 671 figures of recent 



Vol' n'"Mo'^rrmi'^f.'n°V'' '°"^' ^'""''V ^°§^*^^ witf anLomfcal deta Is 

 VOL. 11. iViuRiciN.^ and Purpurin^. 1880. 



289 pp. with 70 plates (977 figures). " Contains a concise account of the 

 a sSh^'of fh^ r 7 f'^^'^'b^^^i°? °f 'l^e prosobranchiate gasteropod molksks! 

 a sketch of their development, notices of the various systems of classification 

 etc. ; together with descriptions of all the species. . ^'^'^'"'^^"o"» 



CONDITIONS. 



The Manual OF Conchology will be published, by subscrintion in narts 



mbrSir^'to°2;oSes''°-M '°" ^^'" ^°"^''^^^^^ ^ vo'lume""£ch 'part':; 

 embrace tiom 16 to 24 plates, with accompanying text. Each volume will bp mm 

 plete m Uself and will be furnished with appropriate title page, Tn^x Tt 5art^" 

 Sutirwi/lToiro^."'' ''''' -'^-— e the history Sf^ihe Cephalopod^he 

 It IS impossible to predicate the length of time that will be required to complete 

 the work; it will certainly occupy several years. Subscriptions Vill be revS e 

 on the completion of any volume. icvocaoic 



Fine *Fn?TmN ^°Trf T'"-n',P''^^^'^''f ' including three styles, as follows : 

 Fine EDITI,)N.-The text will be printed on heavy plate paper, and the plates will 



Price, p?i"plr't,'. ^"'" ''"'''^- ^^^'^"^ '''^'^y ^''"^''^^ t« ^5 copils. ) 



Colored Euition.— The plates carefully colored by hand. Per Part '" ^? ^^ 

 Plain Edition. Per Part y "ana. rer j-art, ... 500 



. ' ••• • • ••■ ... ... 3 00 



American subscribers will please address 



GEO. W. TRYON, Jr., 



Academy of Natural Sciences, Philadelphia, Pa 

 Foreign subscriptions may be sent to either of the following booksellers ; 



'" ^-"~ ' Joseph BAER& Co., Frankfurt am Main. 



H. Georg, Rue de Lyon 65, Lyons 

 France. ' 



H. Gk.okg, Bale. 



H. Georg, Corraterie No. 10, Geneva 

 U. HoEPLi, Milan, Naples and Pisa. 

 *** Subscribers for the current volume, can purchase completed volumes at th* 

 subscription price. Non -subscribers will be charged twenty-five per cenTadta*^' 

 upon the subscription price for either of the volumes. ^ advance 



Trubner & Co., 57, 59 Ludgate, 



London. 



F. Savy, 77 Boul. St. Germain, Paris 

 A. AsHER & Co., 53 Mohrenstrasse, 



Berlin. 

 C. Gerold's Sohn, Vienna. 



