"We are here brought face to face with the old question that has confronted all investigators of sex-differences. It is evident, however, that the question of the social environment is, in this instance, a controlling one not merely in the discussion of the revelation of sex in handwriting, but also in that of the revelation of intelligence; for there exists a peculiar environment for talent as well as for sex. Indeed, it appears that the investigation of handwriting must be socio-psychological in nature. Unconscious imitation, social suggestibility doubtless play an important, if not all-important, part in determining writing characteristics. On the whole, therefore, it is not surprising that the experts were more successful in distinguishing marked differences in intelligence than in determining the nature of the individual superiority. They perceived the class characteristic, as it were."