NATUEAL SELECTION 



TEOPICAL NATUEE 



DESCRIPTIVE AND THEORETICAL BIOLOGY 



BY 



ALFEED EUSSEL WALLACE 



AUTHOR OF 'THE MALAY ARCHIPELAGO,' 'ISLAND LIFE,' 'DARWINISM, 

 ETC. 



NEW EDITION WITH CORRECTIONS AND ADDITIONS 



MACMILLAN AND CO. 



AND NEW YORK 

 1891 



All rights reserved 



