The problem of antenatal and postnatal syphilis is one of the largest in the entire field of medicine, not only because it concerns nearly every specialty, but also because of its wide social and economic importance. As is well-known, syphilis is the most frequent cause of abortions and stillbirths, statistics ranging from 20 to 50 per cent. Williams, in his series of 10,000 pregnancies, holds the disease responsible for 26 per cent, of the fetal deaths between the end of the seventh month of gestation and the two weeks prior to delivery. Routh arrived at about the same figures in his computations, stating that, in urban populations, 25 per cent, of the miscarriages and stillbirths are due to this infection. When the fetus survives and is brought into the world, suffering from latent or active syphilis, its personal handicaps, as well as its being a burden to the family and,