CONTENTS. 
LETTER I. 
Construction of Shelis—Admirable adaptation of each, to 
their respective inhabitants. — Important reflections 
suggested by Conchology. - z C 4 2 
LETTER II. 
Description of Multivalves—Pholas, Lepas, and Chiton— 
Thoughts suggested by the admirable construction of 
these interesting Shell-fish, - - - - - 
LETTER III. 
Bivalves— Variety and elegance of their testaceous cover- 
ings—Instinets of the Animal Inhabitants. - - 
beet 
19 
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