Doubt as to the certainty of contraceptives arises from two sources. One is the uninformed element in the medical profession. A physician who belongs to this element may object to birth control upon general grounds, or he may repeat old-fashioned objections to cover his ignorance of contraceptives. For, strange as it may seem, there is an amazing ignorance among physicians of this supremely important subject. The uninformed objector often assumes to speak with the voice of authority, asserting that there are no thoroughly dependable contraceptives that are not injurious to the user. The other source of distrust is the experience of the woman herself. Having no place to go for scientific advice, she gathers her information from neighbors and friends. One offers this suggestion, another offers that, each urging the means that she has found successful and condemning others. All this is very confusing and extremely disturbing to the woman who, for one reason or another, is living in constant fear of pregnancy. It is not at all surprising that such a state of affairs exists. There has been so much secrecy about the whole subject and so much dependence upon amateurish and nonprofessional advice that it is almost impossible for anyone to procure reliable information or to recognize it when given. This is especially true in the United States where there are both federal and state laws to punish those who disseminate knowledge of birth-control methods. Even under present conditions, however, there is a certain amount of reliable information concerning methods of birth control. We know that there are several methods of prevention which are not only dependable, but which can be used without injury either to the man or the woman. Knowledge of what these methods are and how to apply them should be available to every married man and woman. It is safe to predict that in a very few years they will be available. Some methods are more dependable than others, just as there are some more simple of adjustment than others. Some are cheap and less durable; others are expensive and last for years. There are some which for a quarter of a century have stood the test of certainty in Holland, France, England and the United States among the wealthier classes, as the falling birth rate among these classes indicates. And just as the reliable, primitive wheelbarrow is antiquated beside the latest airplane, so, as scientific investigators turn their attention more and more to this field, will the awkward, troublesome methods of the past give way to the simpler, more convenient methods of the morrow. Although the law forbids information concerning reliable means of contraception, it is hardly likely that it can be invoked to prevent warnings against widely practiced methods which are NOT reliable. The employment of such methods leads not only to disappointment but often to ill health.