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 



ADMIRABLE 



PRINCIPLES OF GEOLOGY. 



