TO 



ROBERT JAMESON, Esq. F. R. S. E. 



UEGIUS PROFESSOR OF NATURAL HISTORY IN THE UNIVERSITY OF EDINBURGH, 



KEEPER OF THE MUSEUM, PRESIDENT OF THE WERNERIAN SOCIETY, 



&C. &C. &C. 



WHOSE ZEALOUS AND ENLIGHTENED LABOURS 



HAVE SO GREfVTLY CONTRIBUTED TO THE ADVANCEMENT 



OF NATURAL HISTORY IN THIS COUNTRY ; 



THIS WORK 



IS MOST RESPECTFULLY DEDICATED 



TRANSLATOR. 



