Those who anticipate the possibility of a premature interruption of pregnancy should realize that the marital relation is inadvisable after conception has taken place. For others, who have no reason to expect irregularity in the course of pregnancy, such a precaution is unnecessary. None the less, women who marry late in life or who first conceive toward the time of the menopause will do well to follow the same rule. The risk of accident may be very slight, but conservative persons will not assume it when the likelihood of subsequent conception is doubtful. Not infrequently the fundamental reason for habitual miscarriage lies in some anatomical abnormality which a surgical operation alone can correct. As the necessity for interference can be determined only after a careful examination, recommendations of wide application are not possible. Nothing short of painstaking study of each case will afford a basis for advice and action. SYMPTOMS.--Very definite warning usually precedes a miscarriage, but the threatening symptoms vary greatly in severity and duration. If appropriate measures are taken promptly, these symptoms may disappear with no harmful result Everyone concedes that bleeding and pain are the chief indications of impending miscarriage, although an occasional patient, profiting by former experience, may find other signs prophetic in her own case. Mature women, accustomed to the regular monthly function of their sex, are prone to treat with indifference a slight discharge of blood occurring during pregnancy. Indeed, it is widely believed that menstruation frequently continues after conception. In point of fact, however, it is very unusual in early pregnancy, and becomes entirely impossible after the fourth month. Accordingly, whenever vaginal bleeding is noticed, some other explanation should be sought; and the patient who would adopt the wisest plan should assume that she is threatened with miscarriage. There are other possibilities, but these are for her doctor to consider.