COLOR ADAPTATIONS. 
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passions, the latter will surely predominate and will 
display him as the slave of heredity. If he has such 
an organization of his nervous system that his volition 
is superior to his passions, he will be none the less the 
servant of heredity, though a being now possessed of 
the power of free will. Happily, the average man 
with his present constitution has his perverse heri¬ 
tages so proportioned that we may repeat that his 
life and character (in customs, morals, and religion) 
are vastly more influenced by environment than by 
heredity.” 
19 
