" Professor Pearson thinks that it is especially
necessary to awaken the hardiest stocks to this duty. These stocks,
he says, are to be found chiefly among the skilled artisan class, the
intelligent working class. Here is a fine combination of health and
hardy vigor, of sound body and sound mind.
Professor Pearson and his school of biometrics here ignore or at least
fail to record one of those significant "correlations" which form the
basis of his method. The publications of the Eugenics Laboratory all
tend to show that a high rate of fertility is correlated with extreme
poverty, recklessness, deficiency and delinquency; similarly, that
among the more intelligent, this rate of fertility decreases. But the
scientific Eugenists fail to recognize that this restraint of fecundity
is due to a deliberate foresight and is a conscious effort to
elevate standards of living for the family and the children of the
responsible--and possibly more selfish--sections of the community. The
appeal to enter again into competitive child-bearing, for the benefit
of the nation or the race, or any other abstraction, will fall on deaf
ears.
Pearson has done invaluable work in pointing out the fallacies and the
false conclusions of the ordinary statisticians. But when he attempts to
show by the methods of biometrics that not only the first child but
also the second, are especially liable to suffer from transmissible
pathological defects, such as insanity, criminality and tuberculosis,
he fails to recognize that this tendency is counterbalanced by the high
mortality rate among later children.
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