MENTAL EVOLUTION m ANIMALS. 



BIT 



GEORGE JOHN ROMANES, M.A., LL.D., F.R.S., 



ZOOLOGICAL SECEETAET OF THE LINNEAN SOCIETY. 

 WITH A 



POSTHUMOUS ESSAY ON INSTINCT. 



BY 



CHAELES DAEWIN, M.A., LL.D., F.E.S. 



LONDON: 

 KEOAX PAUL, TEENCH, & CO., 1, PATERNOSTER SQUARE. 



1883. 



