TIME AND CHANGE 
It is easy to inject into man’s natural history a 
supernatural element, as nearly all biologists and 
anthropologists before Darwin’s time did, and as 
many serious people still do. It is too easy, in fact, 
and the temptation to do so is great. It makes short 
work of the problem of man’s origin, and saves a 
deal of trouble. But this method is more and more 
discredited, and the younger biologists and natural 
philosophers accept the zodlogical conception of 
man, which links him with all the lower forms, and 
proceed to work from that. 
When we have taken the first step in trying to 
solve the problem of man’s origin, where can we 
stop ? Can we find any point in his history where we 
can say, Here his natural history ends, and his su- 
pernatural history begins ? Does his natural history 
end with the pre-glacial man, with the cave man, or 
the river-drift man, with the low-browed, long-jawed 
fossil man of Java, — Pithecanthropus erectus, de- 
scribed by Du Bois ? Where shall we stop on his 
trail? I had almost said “step on his tail,” for we 
undoubtedly, if we go back far enough, come to a 
time when man had a tail. Every unborn child at a 
certain stage of its development still has a tail, as it 
also has a coat of hair and a hand-like foot. But 
could we stop with the tailed man — the manlike 
ape, or the apelike man ? Did his Creator start him 
with this appendage, or was it a later suffix of his 
own invention ? 
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