Many puzzling questions occur to the woman who is about to become a mother. Most of these questions are reasonable and natural, and should be frankly answered; but a false conventionality has--until recently, at least--forbidden any open discussion of facts connected with childbirth. The inevitable result has been that, without experience of their own to guide them, prospective mothers have sought advice from older women, whose experience was at best very narrow, and whose views were often biased by tradition. Or, distrusting such sources of information, they have consulted technical medical works which they could not understand. Either of these methods is very likely to result in misinformation and to cause unnecessary anxiety. Yet no one need be alarmed by a plain, accurate account of Nature's plan to provide successive generations of human beings. Some trustworthy knowledge of a process so fundamental should be part of every person's education; it is especially helpful to women who are pregnant because it affords a rational basis for hygienic measures which they should adopt. A popular work, however, no matter how frank and helpful it may be, will not enable one to dispense with professional advice. For the prospective mother no counsel is more important than this: _Put yourself at once under the care of a physician_. Insistence on the importance of medical advice should not be taken to imply that pregnancy is to be regarded as other than a normal process. Its dangers are comparatively slight, as we should expect, since the property of all living matter to reproduce its kind is both fundamental and essential; the continuance of living creatures in this world, plants as well as animals, depends upon the Reproductive Process. And yet, natural as it is, pregnancy may be attended by complications. Such complications, though happily rare, are to be guarded against in every case, and that may be most effectually done if patients are taught to remain under competent medical supervision from the time of conception until several weeks after the child is born. This precaution greatly reduces the frequency of annoyances during pregnancy and also assists materially toward conducting a birth to a safe conclusion. Moreover, if this advice is followed, when complications do arise they will be recognized and dealt with promptly; they will not be permitted to grow more serious until, perhaps, they may jeopardize the life of the mother or the child or both.