EVOLUTION MADE PLAIN 13 
adult man. When it acquires the use of its 
limbs it begins life as a quadruped. Its blund¬ 
ering attempts in learning to stand erect and 
walk is evidence of the fact that man’s peculiar 
mode of locomotion is a late acquirement. Like 
the lower animals the babe makes known its 
wants by means of natural language; it later 
acquires artificial or spoken language in the 
same slow, laborious way that it was acquired 
by the race. At the average age of three years 
the child has become self-conscious; his mind 
has passed the mental stage of all animals be¬ 
low man. Psychically he has become man. 
In certain periods of youth the child is a 
tree-climber, a cave-digger, childish sports that 
hark back to periods passed through hundreds 
of thousands of years ago in the childhood of 
the race. At a certain stage his emotional 
nature has developed to the point that he is 
conscious of wrong-doing. This is what the 
old theologians called “the age of accounta¬ 
bility.” If there is a grain of truth in the chaff- 
heap of Mosaic mythology the fall of Adam 
indicates the point in the development of the 
race when conscience had dawned and feelings 
of remorse had begun to stir within. Man had 
reached the age of accountability. But prior 
to the “fall” there was a rise. 
Rudiments or vestiges are also evidences of 
the descent (or ascent) of the higher forms of 
life from the lower. Rudiments are incomplete 
parts of the body which have become arrested 
in their development, and which are now of no 
use, nor would now be of use if fully developed. 
They are relics handed down to us by the 
