CONTENTS. 



Part 1— July 6, 1869. 



Page. 



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



2. Descriptions of some Secondary Fossils from the Pa- 



cific States, by Wm. M. Gabb, .... 5 



3. Notes on the Genera Aharia, Diarthema, Dicroloma, 



&c., being a Supplement to "An Attempt at a Re- 

 vision of the Strombidse and Aporrhaidae, by Wm. 

 M. Gabb, 19 



4. Description of a new Helix from Utah, by Wm. M. 



Gabb, 24 



5. Descriptions of new Species of South American Fos- 



sils, No. 1 Tertiary, by Wm. M. Gabb, . . 25 



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



7. On Lingual Dentition studied by the Microscope and 



Photography, by Wm. 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 Crassatellidse, by T. A. 



Conrad, 46 



10. Notices and Reviews of New Conchological Works, by 



George W. Tryon, Jr., 49 



I. American. — Geological Survey of Illinois; by Meek and 



Worthen. Annals of the New York Lyceum. 



II. Foreign. — Efujli'sh. — Annals and Magazine of Natural 



History. Proceedings of the Zoological Society. Con- 



chologia Iconica. 

 French. — Revue et Magazin de Zoologie. Journal de 

 , Conchyliologie. 



German. — Pfeiffer's Monograpbia Heliceorum Viventium. 



Martini & Chemnitz's Conchylien-Cabinet. Romer's 



Monographie der Gattung Venus, etc. 



