Pathologically Premature Menarche in Girls--Premature Puberty in Boys--Conditions met with in Dwarfs--Sexual Parodoxy--Examples. Sexual Perversions--Premature Development--Congenital Character of Perversions--Illusions of Memory--Disappearance of the Perversions of Childhood--The Association Theory--Criticism of this Theory--Instances in which Perversions could be traced back to a very early Age--Origin of Sexual Perversions in Non-Sexual Dispositions--Homosexuality and Friendship--Sexual Cruelty and Cruelty of other Kinds--Diagnostic Difficulties--Exhibitionism--Skatophilia--Hermaphroditism. VI. ETIOLOGY AND DIAGNOSIS 146 Family Tendencies--Abnormal Nervous System--Race--Climate--Position in Life--Town and Country--Modern Civilisation--Importance of Congenital Predisposition--Seduction--Local Stimulation--Chemical Stimuli--Psychical Stimuli. Diagnostic Difficulties--Recognition by means of Observation--Erroneous Diagnoses of Masturbation--The Value of Physical Signs--Value of a Confidant--Misleading Statements and Conduct on the part of Children. Non-Sexual Erections--Non-Sexual Manipulations--Sucking Movements--Nail-Biting--Imitativeness--Impossibility of any Definite Demarcation of Sexual Feelings. VII. IMPORTANCE OF THE SEXUAL LIFE OF THE CHILD 179 The Sexual Life and Morbid Hereditary Predisposition--Hygienic Dangers--The Dangers of Masturbation in General--Of Masturbation in the Child--Masturbation without Ejaculation--Exaggerated Views to be Avoided--Amatory Passion and Suicide--Freud's Theory--Infectious Diseases. Ethical Dangers--Masturbation and Ethics--Social Dangers--Social Degradation of Girls--Seduction of Girls--Forensic Importance of the Sexual Life--Children's Evidence--Circumstances affecting Culpability--Penal Responsibility of Children--Intellectual Dangers--Sexuality and Altruism. Sexual Perversions and the Choice of a Profession--Punishments and Masochism--Curiosity of Children--Sexuality and Art--The Question of the Offspring. Importance of Tardy Sexual Development. VIII. THE CHILD AS AN OBJECT OF SEXUAL PRACTICES 219 Paedophilia Erotica--Other Sexual Offences against Children--Sexual Acts Performed on Children--Significance of each Acts to the Child--Artificial Production of Sexual Perversions--False Accusations--Statistics of Accusations by Children--Reasons for Protecting Children----Injuries effected on Children by the Law--Responsibility of Paedophiles. Exhibitionism--Sadism--Newspaper Advertisement. IX. SEXUAL EDUCATION 246