TO 

 CHARLES LYELL, ESQ., F.R.S. 



THIS SECOND EDITION IS DEDICATED WITH GRATEFUL PLEASURE, 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 



