IV. CONTENTS. 



British. — Annals and Magazine of Natural History. Trans- 

 actions of the Linnean Society. Proceedings of the Zoo- 

 logical Society. Lord's Naturalist in British Columbia. 

 Conchologia Iconica. 



French. — Journal de Conchyliologie. Stabile's Mollusques du 

 Piemont. Revue et Magazin de Zoologie. 



German. — Fauna derKieler Bucht Malakozoologische Blat- 

 ter. Monatsberichte der Konig. Preuss. Akad der Wissen- 

 schaften zu Berlin. Vehr. Zoolbotanischen Gesellschaft 

 in Wein. Novitates Concholgicse. 



Italian. — Stossich's MoUuschi del Golfo di Trieste. Molluschi 

 raccolti dalla Missioue Italiana in Persia, by Issel. 



12. Scientific Intelligence, 104 



On reversed Helices. On Paludina scalaris, Say; on the ge- 

 nus Papo«dea, Pease, and Panama, Semper ; Polymorphism 

 among Bryozoa; Note on Helix Jidelis, Gray; on Valvata 

 Jelskii, Crosse. 



13. Obituary, .106 



Augustus A. Gould, M.D., Major Robert Kennicutt. 



ILLUSTRATIONS. 



Portrait of J. P. Kirtland, with Autograph. 

 One Colored and Four Plain Plates. ( .,•-;_ i 



Part 2 — September 5th, 1867. 



Page. 



1. Record of Meetings, ...... 109 



2. Description of New Species of Fresh Water Shells 



from Michigan, by A. 0. Currier, . . • . 112 



3. On the various principles of Zoological Classification, 



by 0. A. L. Morch, ...... 114 



4. On Green Oysters, by A. W. E. O'Shaughnessy. . 133 



5. On the Genus Fulgur and its Allies, by Theodore Gill, 



M.D., 141 



6. On the Systematic Position of Buccinum altile and B. 



Escheri, by Theodore Gill, M. D., . . . . 153 



7. Monograph of the Terrestrial Mollusca of the United 



States, by George W. Tryon, Jr., (Continued) . 155 



8. Synopsis of the Genera Sycotypus, Browne, and Busy- 



con, Bolten, by T. A. Conrad, . . . .182 



