TO 



CHARLES LYELL, Esq., F,E.S., 



THIS SECOND EDITION IS DEDICATED WITH GKATEFUL PLEASUEE, AS 

 AN ACKNOWLEDGMENT THAT THE CHIEF PART OF WHATEVER 

 SCIENTIFIC MERIT THIS JOURNAL AND THE OTHER WORKS OF THE 

 AUTHOR MAY POSSESS, HAS BEEN DERIVED FROM STUDYING THE 

 WELL-KNOWN AND ADMIRABLE 



PRINCIPLES OF GEOLOGY. 



