Editorial note — Chapter III · SACRIFICE

[Footnote 4: Dr. Karl Pearson, of London, the well-known authority on eugenics, has investigated rather carefully the health of children in large and small families, and has demonstrated that children are healthiest when there are five to eight children in the family. On the average, first and second children are not as healthy as those who come later in the family, and those who are in the best condition physically and mentally for life come after the fourth. The early children in the family are more liable to epilepsy and certain serious nervous diseases, and are often of unstable nervous equilibrium, while the later children are more gifted and are likely to live longer.]