TO 



G. H. K. THWAITES, ESQ, 



PERADENIA, CEYLON, 



BY WHOSE ENCOURAGEMENT I WAS INCITED TO ENTER UPON 



THE FOLLOWING INVESTIGATIONS, 



AND BY WHOSE AID I WAS ENABLED TO OVERCOME 

 THE EARLIER DIFFICULTIES OF THE STUDY, 



I INSCRIBE THESE PAGES, 



DESIRING THUS TO EXPRESS MY THANKS, 



AND 



TESTIFY MY ESTEEM, 



WILLIAM SMITH. 



Lewes, March 1853. 



