VOL. 1. 



NO. 



FOSSIL SHELLS 



THE TERTIARY FORMATIONS 



OK 



NORTH AMERICA, 



ILLUSTRATED BY FIGURES DRAWN ON STONE, 

 FROM NATURE. 



BY T. A. CONRAD, 



Member of the Aoad. Nat. 8c. of Philada. 



CONTENTS. 



PHILADELPHIA : 



Bold by JUDAH DOBSON, No. 108, Chestnut St. 

 October 1, 1832. 



[9] 



