TO 
MY SONS, 
WALTER MANTELL 
OF WELLINGTON, NEW ZEALAND, 
AND 
REGINALD NEVILLE MANTELL, 
OF KENTUCKY, UNITED STATES, 
Chis dork, 
MY LAST ATTEMPT TO PROMOTE THE ADVANCEMENT 
OF SCIENTIFIC KNOWLEDGE, 
IS MOST AFFECTIONATELY INSCRIBED. 
G. A. M. 
CHESTER SQUARE, PIMLICO, 
Feb. 3, 1853. 
[The above having been penned by the much-l|amented author of the ** Medals” some months 
previous to his decease, it is retained in this posthumous edition of his favourite work 
as an appropriate dedication, dictated by the parental affection of one of the chief pro- 
moters of geological science in England, and addressed to his absent sons, whose works 
have already shown them to be enthusiastic labourers in the same field, both at home 
and in distant parts of the world. ] 
