And it is a great misfortune that euthenics so often
fails to look beyond the immediate effect, fails to see what may happen
next year, or 10 years from now, or in the next generation.
We admit that it is possible to keep a lot of children alive who would
otherwise have died in the first few months of life. It is being done,
as the New York figures, and pages of others that could be cited, prove.
The ultimate result is twofold:
1. Some of those who are doomed by heredity to a selective death, but
are kept alive through the first year, die in the second or third or
fourth year. They must die sooner or later; they have not inherited
sufficient resistance to survive more than a limited time. If they are
by a great effort carried through the first year, it is only to die in
the next. This is a statement which we have nowhere observed in the
propaganda of the infant mortality movement; and it is perhaps a
disconcerting one. It can only be proved by refined statistical methods,
but several independent determinations by the English biometricians
leave no doubt as to the fact. This work of Karl Pearson, E. C. Snow, and
Ethel M. Elderton, was cited in our chapter on natural selection; the
reader will recall how they showed that nature is weeding out the
weaklings, and in proportion to the stringency with which she weeds them
out at the start, there are fewer weaklings left to die in succeeding
years.
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