CONTENTS. 



Page 



Introduction to the science 1 



The animals which have been discovered to inha- 

 bit shells 6 



Explanation of the parts of shells. 



Multivalve 13 



Bivalve 15 



Univalve 24 



Of genera. 



Order 1st. Multivalve shells 42 



2nd. Bivalve shells 4~ 



■ 3rd. Univalve shells with a regular spire.... 6"» 



Division 2nd. Shells without a regular spire....... 90 



Specific description of the plates. 



Plate 1st. Multivalve shells 9S 



Bivalve shells 102 



. 2nd. Bivalve shells 105 



Univalve shells 109 



3rd 112 



4th. Hinges of bivalves, &c , 119 



