THE 
CONCHOLOGIST’S COMPANION. 
LETTER I. 
CONSTRUCTION OF SHELLS. 
—— 
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Tue elegant science of Conchology, my friend, com- 
prises the knowledge, arrangement, and description 
of testaceous animals; a science, according to Lin- 
nzeus, which has for its basis the internal form and 
character of the shell, and is totally independent of 
the animal inclosed within the calcareous covering, 
though undoubtedly its instincts and construction 
are included in the researches of the Conchologist. 
Each individual is composed of two parts: one of 
which is the animal itself, and though soft and bone- 
less, it is furnished with organs peculiarly adapted 
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