CHAPTER X 
Tue Future EvoLuTion oF Man 
THE disturbance of mind created by the publica- 
tion of Charles Darwin’s “Origin of Species” would 
have amounted to nothing if the theory had been ap- 
plied to the lower animals alone. Few people would 
have disputed that a cow and a buffalo had descended 
from the same ancestor, or that monkeys and apes 
were of a common blood. The whole theory would 
have been looked upon by those outside the biologi- 
cal world as entirely an academic question, in which 
they had little concern, and less interest. But within 
this century the scientist has so persuaded the world 
of the unity underlying the activities of the universe, 
that so soon as a principle is established men begin 
to run it out to the very end. Everyone knows per- 
fectly well that if it could be proved that the dog 
and the horse had a common ancestor, still more if it 
could .be made apparent that the dog and the frog 
and fish had sprung from the same stock, then there 
could be no question of what would be the final ap- 
plication of the theory. Man himself could be no 
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