These advocates say that the MENTAL EFFECT upon the secretions of the body must be taken into account in all considerations of the question. They say that just as the gastric juice will begin to flow in response to the mental image or idea of food, and the mother's milk in response to the cry of the child for food, so do the sexual secretions, direction of the circulation, and other physiological activities result from the mental pictures or idea of sexual congress. They hold that if the mind of the husband be filled with mental images of sexual congress, then there is set into operation the process of secretion of seminal fluids, and the consequent engorgement of the blood-vessels concerned therewith, which are denied the normal physiological relief, and accordingly produce bad effects upon the nervous system. But they likewise claim that if the mind of the husband entertains ideas merely of physical endearment and caress as "an end to itself," then there is no mental incentive toward the secretion of the seminal fluids, and the constant engorgement of the blood-vessels, and no nerve force is generated--and therefore no nerve-shock is experienced by reason of frustrated manifestation and expression. Parkhurst says regarding the point just mentioned: "In the relations between the sexes, the question of how the association of the husband and the wife shall stimulate the affectional or generative action or sexual batteries must depend greatly upon their habits of association. We have only to accustom ourselves to associating the relation with the affectional action, by repeated repetition when the affectional action is all that is felt or thought of, in order to cultivate such habits and associations as will make the association tend to REPRESS passional desires, by the direction of the sexual forces into the channel of affectional attraction and functioning. * * * The form of the sexual manifestation will be largely influenced, by the mind, and largely by force with these principles, and the gradual formation of habits consistent therewith, will make more and more evident their beneficial operation." There is much interest now being taken by thinking people in some phases of the general subject of semi-continence, and many thoughtful and conscientious persons find in it at least the promise of a worthy and honest solution of the problem of Continence as applied to Birth Control. Such persons claim to find in this general class of Birth Control methods a happy medium between the rigid practice of absolute Continence in the marriage relations, on the one hand, and the more popular methods of Contraception, on the other hand. Contraception.