18 



No doubt when man subsisted entirely by the products of the 

 chase, when the wild animals daily became scarcer and more 

 wary, he saw nothing before him but starvation. 



Then the pastoral state arose, to be followed by the agricultural, 

 and subsequently by the commercial. 



We are now at the da^-n of the scientific age of the world, and 

 it behoves us all to take care, in the interest of humanity, to do 

 our utmost to promote the victory of science over nescience. 



