THE 



ORIGIN OF THE FITTEST 



ESSAYS Olf EYOLUTIOjN" 



BY 



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



MEMBER OF THE UNITED STATES NATIONAL, ACADEMY OF SCIENCES ; CORRESPONDENT OP 



THE ROYAL BAVARIAN ACADEMY OF SCIENCES 



KKW YORK 

 D. APPLETON AND COMPANY 



1887 



