

EARTH 

 SCIENCES 



LIBRARY 



TO 



JOHN EDWARD GRAY, ESQ., F.R.S., 



ETC. 



KEEPER OF THE ZOOLOGICAL COLLECTIONS IN THE BRITISH MUSEUM : 



WHOSE VALUED FRIENDSHIP AND LEARNED GUIDANCE 



THE AUTHOR 



HAS ENJOYED FOR MANY YEARS, 



AND 



WHOSE CONTRIBUTIONS FORM THE MOST VALUABLE PORTION OF IT, 

 THIS WORK 



$s gratefulle tretrtcatefc. 



M348005 



