The gambling propensity is another subsidiary trait of the barbarian temperament.

It is a concomitant variation of character of almost universal prevalence among sporting men and among men given to warlike and emulative activities generally.

This trait also has a direct economic value.

It is recognized to be a hindrance to the highest industrial efficiency of the aggregate in any community where it prevails in an appreciable degree.

The gambling proclivity is doubtfully to be classed as a feature belonging exclusively to the predatory type of human nature.