THE 



ORIGIN OF THE FITTEST 



ESSAYS O^ EVOLUTION 



BY 



E. D. COPE, A. M., Ph. D. (Heidelberg) 



MEMBER OF THE UJflTED STATES NATIONAL ACADEMY OF SCIENCES ; CORRESPONDENT OB 

 THE ROYAL BAVARIAN ACADEMY OF SCIENCES 



NEW YORK 

 D. APPLETON AND COMPANY 



1887 



