COISI TEIN^TS. 



Page. 



1. Record of Meetings 1 



2. Descriptions of some Secondary Fossils from the Pacific 



States. By \Vm. M. Gal)b, 5 



3. Notes on the Genera Alaria, Diarthema, Dicroloma, &c., 



being a Supplement to "An Attempt at a Revision of 

 the Strombidae and Aporrhaidae " By Wm. M. UaV)b, 19 



i. Description of a ne'w Helix from Utah. By Wni. M. Grtbb,.... 24 



5. Descriptions of neMv Species of South American Fossils, 



No. 1 Tertiary. By Win. M. Gabb, 2J 



6. Observations on Melantho. By James Lewis, M. D , 33 



7. On Lingual Dentition studied by the Microscope and 



Photography. By Wra. G. Binney. With Note by Thos. Bland, 37 



8. Descriptions of Miocene, Eocene and Cretaceous Shells. 



By T. A. Conrad, 39 



9. Observations on the Genus Astarte, -with Descriptions of 



three other Genera of Crassatellidae. By T. A. Conrad, 4G 



10. Notices and Reviews of Ne'w Conchological Works, by 



George W. Tryon, Jr 49 



I. American.— Geological Survey of Illinois, by Meek and Wortheu. Annals of the 



New York Lyceum. 



II. FoEEiGN. — English. — Annals and Magazine of Natural History. Proceedings of the 



Zoological Society. Conchologia Iconica. 



French. — Revue et Magazin de Zoologie. Journal de ConchyUologie. 



German. — Pfeitfer's Monographia Helieeorum Viventium. Martini & Chemnitz's 

 Conchylien-Cabinet. Romer's Monographie der Gattung Venus, etc. 



