Definition of Sterility--Husband Should First be Examined-- One-child Sterility--The Fertile Woman--Salpingitis as a Cause of Sterility--Leucorrhea and Sterility--Displacement of Uterus and Sterility--Closure of Neck of Womb and Sterility--Sterility and Constitutional Disease--Treatment of Sterility. XL. THE HYMEN 294 Difference Between Chastity and Virginity--Worship of Intact Hymen--Sacrificing Hymen Sometimes Essential for Health of the Girl--Certificate from Physician who has Ruptured Hymen. XLI. IS THE ORGASM NECESSARY FOR IMPREGNATION? 297 Suppression of Orgasm by Woman to Prevent Impregnation--Bad Results of Suppression by the Woman--Orgasm: Relation of to Impregnation--A Hypothesis--A Fanciful Hypothesis--Why Passionate Women Frequently Fail to Become Mothers--Advice to Passionate Women who Desire to Conceive. XLII. FRIGIDITY IN WOMEN 301 Meaning of Term Frigidity--Types of Frigidity--Large Percentage of Frigid Women--Repression of Sexual Manifestations and Frigidity--Frigidity and Masturbation--Frigidity and Sexual Weakness of Husband--Frigidity and Dislike of Husband--Organic Causes of Frigidity--A Frigid Woman May Become Passionate-- Treatment of Frigidity. XLIII. ADVICE TO FRIGID WOMEN, PARTICULARLY WIVES 304 Advice to Frigid Women--Attitude of Different Men Towards Frigid Wives--Orgasm a Subjective Feeling--A Justifiable Innocent Deception--The Case of a Demi-Mondaine. XLIV. RAPE 308 Definition of Rape--Age of Consent--Unanimous Opinion of Experts--Exceptional Cases--False Accusation of Rape Due to Perversion--Erotic Dreams Under Anesthesia Causing Accusations Against Doctors and Dentists. XLV. THE SINGLE STANDARD OF SEXUAL MORALITY 311 Chastity--Double Standard of Morality--Attempt to Abolish Double Standard--Late Marriages and Chastity in Men--Harmful Advice Given to Young Women--Chastity in Men Not Always Due to Moral Principles--Chaste Men and Satisfactory Husbands--A Statement by Professor Freud--A Statement by Professor Michels--What a Girl has a Right to Demand of Her Future Husband--Three Cases Showing Disastrous Effects of Wrong Teachings. XLVI. DIFFERENCE BETWEEN MAN'S AND WOMAN'S SEX AND LOVE LIFE 318