TO 
GIDEON MANTELL, Esa, 
FE, R..S.,, 1A S., (Gi 'S., 8. &e. 
OF BRIGHTON, ENGLAND, 
DISCOVERER OF THE IGUANODON AND HYLAZOSAURUS, 
THIS WORK 
IS MOST RESPECTFULLY INSCRIBED 
BY 
HIS VERY OBLIGED AND VERY GRATEFUL FRIEND, 
THE AUTHOR. 
