It must be remembered that the parallel of the more primitive creatures cannot be pressed too far, because in a thousand ways we highly civilised human beings have developed in fresh directions away from our ancestral habits. This question, of whether or not it is right and wise to have sex unions during pregnancy, is one on which scientific research should be undertaken. Far too few men and women are clean-minded and frank enough to record their feelings in this connection, and far too few medical men delicately sympathetic enough to elicit the facts even from those women who are personally conscious of them. The little evidence which I have acquired through direct personal confidences about this subject points in absolutely conflicting directions, and there is little doubt that in this particular, even more than in so many others, the health, needs, and mental condition of women who are bearing children vary profoundly. From one distinguished medical specialist I have acquired the interesting suggestion that in one or two cases among his own patients, where the prospective mother had desired unions and the husband had denied them thinking it in her interest, the doctor had observed that the children seemed to grow up restless, uncontrollable, and with an unduly marked tendency to self-abuse. On this most suggestive and important idea, I would gladly obtain evidence from parents and the medical profession, for only from a large number of cases can reliable conclusions be drawn. But just as in popular opinion it is good for the child and the woman to gratify any harmless fancy for food which she may develop, so, in my opinion, it seems probable that any desire for moderate and careful sex union between the prospective mother and the father of the coming child should be gratified in the interests of all three. But this opinion is expressed merely provisionally, and largely in response to a number of inquirers who have asked me about this point. Immoderate and excessive sex union must undoubtedly be looked upon as an unfavourable symptom, and a practising doctor should be consulted about it. A woman who is bearing a child by the man she deeply loves, has an intense longing that he should share, so far as is possible, in influencing that child while it is coming, and that he should be as near and as close to it and to her as is possible. The basis of this longing we may well imagine may be not only a tender sentiment of the brain, but may depend on that fine sensual interchange of ultra-microscopic particles which must take place between skin and skin during physical contact, the idea of which is so beautifully foreshadowed in Carpenter's "Love's Coming of Age."