A 



POPULAR HISTORY 



OF THE 



MOLLUSCA; 



COMPRISING 



A FAMILIAR ACCOUNT OF THEIR CLASSIFICATION,, INSTINCTS^ 



AND HABITS^ AND OF THE GROWTH AND 



DISTINGUISHING CHARACTERS OF THEIR SHELLS. 



BY 



MARY ROBERTS, 



Author of ' The Conchologist's Companion,' &c 





LONDON : 



REEVE AND BENHAM, 



HENRIETTA STREET^ COVENT GARDEN. 



1851. 



