Contraindications to Marriage.-- Young women in whose family there is a distinct history of such hereditary diseases as cancer, tuberculosis, or insanity for two generations back, should not marry at all. Not only is this a fearful legacy to hand down to their children, but pregnancy and child-bearing very decidedly favor the development of these diseases. Syphilis in either sex is a distinct bar to marriage; first, the party married is sure to contract the disease, even though it may have been supposed to have been cured. Fortunately, the children of such marriages are generally still-born; still, they do sometimes live, and are most pitiable and sickly objects. For any one to marry under these conditions is a crime against society, against the State, and against posterity. Women who have serious forms of heart disease, tuberculosis, or Bright's disease would, by becoming pregnant, run a serious risk of losing their lives toward the close of the pregnancy or at the time of their confinement. In case of heart disease, the pulmonary congestion that accompanies pregnancy, together with the encroachment of the pregnant uterus on the cavity of the chest, would greatly add to the embarrassment of the heart's action. In normal pregnancy there is some congestion of the kidneys; where there is actual disease of the kidneys prior to the pregnancy, this congestion is apt to become so severe as to threaten the woman's life. These organic diseases are not to be confounded with functional diseases which are dependent on some other cause; as palpitation of the heart due to indigestion, or heart murmurs dependent on the thin state of the blood, or congestion of the kidneys due to exposure to cold;-- all of which may be cured by proper treatment. Should a woman with a fibroid tumor marry, she would run a great risk to her life; she should have the tumor removed, or, if this is not possible, she should give up all thoughts of marriage, since the increased irritation and congestion consequent upon the marital relations would tend to favor its growth. Should pregnancy ensue, delivery might be attended with serious complications, as very difficult labor, postpartum hemorrhage, or, as these tumors have but little vitality, and the pressure to which they are subjected during labor is liable to cause their death, disorganization, sloughing, and, as a result, puerperal septicemia. Sometimes there is such a lack of development of the genital organs as to prevent the woman from having children. Two persons with even a slight tendency to the same disease, either inherited or acquired, should not intermarry, even if they are in comparatively good health at the time. Their offspring would be quite sure to inherit their diseased tendencies.