mf THE 



Principles of biology 



BY 



HERBERT SPENCER 



* f ' 



AUTHOR OF SOCIAL STATICS, EDUCATION, STUDY OF SOCIOLOGY^ 



ESSAYS : SCIENTIFIC, POLITICAL, AND SPECULATIVE, 



FACTORS OF ORGANIC EVOLUTION, ETC. 



I BUREAU Ox 



\ AMERICAN ETHNC: 



i 6038 



I ises 



■: L I i$ R A ""' ^' 



IN TWO VOLUMES 

 VOL. 1 



NEW YORK 



D, APPLETON AND COMPANY 



1896 



