problem, we must know if there
be any correlation between the same character in the parent as we are
observing in the child and the environment we are correlating with the
child's character. Unfortunately data enabling us to determine the
relationship of any mental or physical character of the parent with
the environment which is supposed to influence the child is rarely
forthcoming."

Just to suggest one further train of thought, we might point out that
several movements apparently of high social value have been attended
by a curious and largely unforeseen back action. Thus the enforcement
of certain forms of Employer's Liability laws has led to
discrimination against married persons by large employers of labor and
a premium thus put upon nonmarriage. The result of Child Labor
legislation has been in some cases an enormous rise in the death rate
of young children among the classes concerned, indicating that the
children receive less care, now that they have ceased to be a
prospective family asset and have become chiefly a burden for many
years. In other cases the result has been so serious a limitation in
the birth rate that communities are dying out and factories are
closing for want of sufficient help. Such problems are not only social
but economic and eugenic, and they cannot be seen squarely from any
single point of view. It is doubtless shocking to the cultured mind
that the chief reason for bringing children into the world should be
their economic value as contributors to the family income. But in
reality does this point of view differ fundamentally from that very
commonly taken of the value of a large family except in the nature of
the standard by which their value is measured? May there not be a
difference of opinion as to whether children are better or worse off
when brought up with some degree of care to be employed under humane
conditions of labor, than when left uncared for to die in large
proportions of disease and neglect?

Finally, studies in heredity, whether on man or on other animals or on
plants, are sure to be of value here because we know that the
fundamental processes of heredity are the same in all organisms. Above
all, the Eugenist needs to know more of Mendelian heredity in man.
The facts of heredity stated in the statistical form of averages and
coefficients do not affect the man in the street materially--he rather
enjoys taking chances. An extensive eugenic practice can be
established only