Published at $10 per Annum— Payable in Advance. 

 Vol. 6. Part 2. 



AMERICAN 



CONCHOLOG^Y. 



1870-71. 



PUBLICATION COMMITTEE: 

 GEORGE W. TRYON, Jr., Editor, 

 S. R. ROBERTS, 

 E. J. NOLAN, M. D. 



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