CONTENTS. 



Part 1— July 7, 1870. 



Page. 



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



Observations on Marginellidse, by J. H. Redfield, . 2 



2. Remarks on the Species of Melania and Limniiea inhab- 



iting the Hawaiian Islands, with descriptions of New 

 Species, by Wra. Harper Pease, .... 4 



3. Materials toward a Monograph of the Gadiniidse, by 



W. H. Dall, 8 



4. Descriptions of New Species of Marine Bivalve Mol- 



lusca in the Collection of the Academy of Natural 

 Sciences, No. 2, by Geo. W. Tryon, Jr., . . 23 



5. I^ote on Cyclophorus foliaceus. Reeve (non Chemnitz), 



and C. Leai, Tryon, by Geo. W. Tryon, Jr., . . 25 



6. Catalogue of the Shell-bearing Mollusca of Fulton 



County, Illinois, by John Wolf, . . . .27 



7. Remarks on the Anatomy of the Genus Siphonaria, 



with a description of a New Species, by Wm. H. 

 Dall, 30 



8. Notes on Mollusca of Monterey Bay, California, by 



John G. Cooper, M. D., 42 



9. Notes on Recent and Fossil Shells, with Descriptions 



of New Species, by T. A. Conrad, . . .71 



10. Notices and Reviews of New Conchological Works, by 



George W. Tryon, Jr., 79 



I. American. — Annals of the New York Lyceum of Nat. His- 



tory ; Davidson's Report on the Oyster Resources of 

 Maryland. 



II. Foreign. — British — Annals and Magazine of Nat. History ; 



Journal of the Linnean Society. 

 French. — Journal de Conchyliologie ; Revue et Magasia 

 de Zoologie. 



German. — Decken's Reisen in Ost-Afrika ; Novitates Con- 

 chologicse, Martini und Chemnitz. 



