ON THE CLASSIFICATION 



AND 



GEOGRAPHICAL DISTRIBUTION 



OF THE 



MAMMALIA, 



BEING THE 



LECTURE ON SIR ROBERT READE'S FOUNDATION, 



DELIVERED BEFORE THE 



SSnftroftg of <ambrfoge, in tjjc &tiate*f^ouse, 



MAY 10, 1859. 



TO WHICH IS ADDED AN APPENDIX 



"ON THE GORILLA," 



AND 



"ON THE EXTINCTION AND TRANSMUTATION OF 



SPECIES." 



BY 



RICHARD OWEN, F.R.S. 



READE'S LECTURER IN THE UNIVERSITY OF CAMBRIDGE, SUPERINTENDENT OF THE NATURAL 



HISTORY DEPARTMENTS IN THE BRITISH MUSEUM, PRESIDENT OF THE BRITISH 



ASSOCIATION FOR THE ADVANCEMENT OP SCIENCE, FOREIGN MEMBER OF 



THB INSTITUTE OF FRAKCE (ACADEMY OF SCIENCES), &C. 



LONDON: 

 JOHN W. PARKER AND SON, WEST STRAND. 



M.DCCC.LIX. 



