I^» 



+ 



TO 



GIDEON MANTEL L, Esq., 



F. R. S., L. S., G. S., &c. Jkc. 

 OF BRIGHTON, ENGLAND, 



DISCOVERER OF THE IGUANODON AND HYL^EOSAURUS, 



THIS WORK 



IS MOST RESPECTFULLY INSCRIBED 



BY 



HIS VERY OBLIGED AND VERY GRATEFUL FRIEND, 



THE AUTHOR. 



