"It may be said," Marro states, "that in woman the visceral system reacts, if not with greater intensity, certainly in a more general manner, to all the impressions, having a sexual basis, which dominate the life of woman, if not as sexual emotions properly so called, as related emotions closely dependent on the reproductive instinct." (A. Marro, La Pubertà, 1898, p. 233.)

Forel also believed (Die Sexuelle Frage, p. 274) that women are more erotic than men.

The gynecologist Kisch states his belief that "The sexual impulse is so powerful in women that at certain periods of life its primitive force dominates her whole nature, and there can be no room left for reason to argue concerning reproduction; on the contrary, union is desired even in the presence of the fear of reproduction or when there can be no question of it." He regards absence of sexual feeling in women as pathological. (Kisch, Sterilität des Weibes, second edition, pp. 205-206.) In his later work (The Sexual Life of Woman) Kisch again asserts that sexual impulse always exists in mature women (in the absence of organic sexual defect and cerebral disease), though it varies in strength and may be repressed. In adolescent girls, however, it is weaker than in youths of the same age. After she has had sexual experiences, Kisch maintains, a woman's sexual emotions are just as powerful as a man's, though she has more motives than a man for controlling them.

Eulenburg is of the same opinion as Kisch, and sharply criticises the loose assertion of some authorities who have expressed themselves in an opposite sense. (A. Eulenburg, Sexuale Neuropathie, pp. 88-90; the same author has dealt with the point in the Zukunft, December 2, 1893.)

Kossmann states that the opinion as to the widespread existence of frigidity among women is a fable. (Kossmann, Allgemeine Gynæcologie, 1903, p. 362.)

Bloch concludes that "in most cases the sexual coldness of women is in fact only apparent, either due to the concealment of glowing sexuality beneath the veil of outward reticence prescribed by conventional morality, or else to the husband who has not succeeded in arousing erotic sensations which are complicated and with difficulty awakened.... The sexual sensibility of women is certainly different from that of men, but in strength it is at least as great." (Iwan Bloch, Das Sexualleben unserer Zeit 1907, ch. v.)

Nyström, also, after devoting a chapter to the discussion of the causes of sexual coldness in women, concludes: "My conviction, founded on experience, is, that only a small number of women would be without sexual feeling if sound views and teaching prevailed in respect to the sexual life, if due weight were given to inner devotion and tender caresses as the preliminaries of love in marriage, and if couples who wish to avoid pregnancy would adopt sensible preventive methods instead of coitus interruptus." (A. Nyström, Das Geschlichtsleben und seine Gesetze, eighth edition, 1907, p. 177.)

We thus find two opinions widely current: one, of world-wide existence and almost universally accepted in those ages and centers in which life is lived most nakedly, according to which the sexual impulse is stronger in women than in men; another, now widely prevalent in many countries, according to which the sexual instinct is distinctly weaker in women, if, indeed, it may not be regarded as normally absent altogether. A third view is possible: it may be held that there is no difference at all. This view, formerly not very widely held, is that of the French physiologist, Beaunis, as it is of Winckel; while Rohleder, who formerly held that sexual feeling tends to be defective in women, now believes that men and women are equal in sexual impulse.

At an earlier period, however, Donatus (De Medica Historia Mirabili, 1613, lib. iv, cap. xvii) held the same view, and remarked that sometimes men and sometimes women are the more salacious, varying with the individual. Roubaud (De l'Impuissance, 1855, p. 38) stated that the question is so difficult as to be insoluble.

In dealing with the characteristics of the sexual impulse in women, it will be seen, we have to consider the prevalence in them of what is commonly termed (in its slightest forms) frigidity or hyphedonia, and (in more complete form) sexual anesthesia or anaphrodism, or erotic blindness, or anhedonia.[[157]]