THE 



IIRSE OF NATURE: 



A.I3DRES8 



DELIVERED BEFORE THE 



AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, 

 St. Louis, August 22, 1878, 



SIMON yNEWCOMB, 



Retiring President of the Association. 



r 



SALEM: 

 PRINTED AT THE SALEM PRESS, 



1878. 



