TO 



CHARLES LYELL, Esq., F.R.S., 



THIS SECOND EDITION IS DEDICATED WITH GRATEFUL PLEASUEE, AS 

 AN ACKNOWLEDGMENT THAT THE CHIEF PART OF WHATEVER 

 SCIENTIFIC MERIT THIS JOURNAL AND THE OTHER WORKS OF THE 

 AUTHOR MAT POSSESS, HAS BEEN DERIVED FROM STUDYING THB 

 WELL-KNOWN AND ADMIRABLE 



PRINCIPLES OF GEOLOGY. 



