Many hygienic reasons and the most elemental laws of humanity demand that the wife who is fertile above the average should have a rest of at least 18 months between each succeeding pregnancy. But this cannot be achieved in the natural course of events except in very rare cases without wrecking the marriage. If we crystallize this sexual social question we arrive at the following conclusions: There are a great many cases, especially of a pathological character, but none the less, also, in normal and sound individuals, in which procreation within wedlock or without either definitely or temporarily either for the mother or the child, or for both, and for that reason should be interdicted. Very few men and a very small proportion of women—no matter how firmly they may be resolved—are capable of suppressing their sexual needs. Even if they succeed the consequences are generally of a disastrous nature, loss of marital love, secret illicit relations with others, and subsequent infidelity, nervous disorders, impotence, etc. In all these cases we are confronted with the following dilemma: 1—In the unmarried person: onanism or prostitution, or both. Is that morality? Such people must either forever forego love, marriage, and normal lawful sexual intercourse, or face sterility in wedded life. 2—Within marriage: onanism, prostitution and infidelity, or the adoption of rational preventive measures. I leave it to the reader, and to the law maker to pick out the correct alternative and to arrive at the one possible decent and ethical solution of these conflicting questions. It seems almost incredible that in some countries medical men who are not ashamed to throw young men into the arms of prostitution, blush when mention is made of anti-conceptional measures. P. 427b. A year, at least, should elapse between parturition and the next conception; this gives approximately two years between the confinements. In this way the wife keeps in good health and can bear healthy children at pleasure. It is certainly better to procreate seven children, than to procreate 14, of which seven die, to say nothing of the mother, who rapidly becomes exhausted by uninterrupted confinements. P. 430. It is quite certain that the sexual life of man can never raise above its present state without being freed from the bonds of mysticism and religious dogma, and based on a loyal and unequivocal human morality which will recognize the normal wants of humanity, always having as its principle object the welfare of posterity. P. 459.