The rearrangement of identifications in the young girl as she moves from the end of childhood into adolescence is illustrated using elements from a study of preadolescents and their future development, a study carried out by means of interviews and projective methods. While the prepubescent and pubescent girls had the same average age, there are radical differences in the mutation of envelope femininity into orifice femininity depending on whether the girls have begun to menstruate or not ; this confirms the validity of hypotheses about the pubertaire proposed by Philippe Gutton. At the same time, psychical movements of separation from parental images take shape, providing a springboard towards subjectivation.