TO MY FRIEND 
BARON G. D. CUVIER, 
Secretary to the Royal Institute of Paris; Professor of Zoology and 
Comparative Anatomy in the Garden of Plants; Director 
of the French Academies; Member of the 
principal Scientific Societies in Europe 
and America ; 
WHO HAS PUBLISHED THE BEST MEMOIRS 
ON THE MOLLUSCA, CEPHALOPODA AND GASTEROPODA, 
I DEDICATE THIS PART OF THIS LITTLE BOOK, 
IN TOKEN OF MY AFFECTIONATE AND GRATEFUL REGARD: 
WILLIAM ELFORD LEACH. 
TO 
FOS. KAV) 2 Oe 
Sc. 
AS A HUMBLE TESTIMONY OF MY ESTEEM 
TO HIM WHO HAS ELUCIDATED THIS DEPARTMENT 
OF THE MOLLUSCA 
MORE THAN ANY OTHER AUTHOR, 
I DEDICATE THIS PART OF MY WORK: 
WILLIAM ELFORD LEACH. 
