First, let us take up the case of _Krafft-Ebing_ (Obs. 159) since it is so simple and obvious: 54. Mrs. X., 26 years of age, married 7 years, confesses herself attracted for some time to persons of her own sex; she respects and even feels a certain sympathy for her husband but marital relations with him she finds repulsive. She has made him abstain from sexual relations with her since the birth of their youngest child. Already at the boarding school she felt a keen interest in other young women, which she can only describe as love attraction. _But occasionally she had also felt herself attracted to particular men and lately a certain man had put her resistance to test. She was often afraid she might forget herself with him and therefore avoided being alone with the man._ But these are merely passing episodes in contrast with her passionate inclination towards persons of her own sex. Her true love is expressed in kisses, caresses and intimate contact with the latter. Failure to gratify that yearning is painfully uncomfortable and is largely responsible for her present nervous state. The subject does not assume a particular sexual rôle in relation to persons of her own sex, and she did no more than indulge with them in kisses, petting and embracing. The subject considers herself of a passionate nature. Quite likely that she masturbates. Her sexual perversion she looks upon as “unnaturally morbid.” Nothing in the woman’s ordinary conduct or external appearance betrays such an anomaly. About her childhood she is unable to report anything of significance. She was quick to learn, had poetic and æsthetic inclinations, was considered somewhat nervous, loved reading of novels and sentimental romances, was of a neuropathic constitution, and extremely sensitive to changes in temperature. It is noteworthy also that at ten years of age, because she thought that her mother did not love her, the patient dissolved matches in coffee and _drank the solution so as to make herself very ill and to draw her mother’s affection to her_.