FIG. 38.--The heavy line shows the distribution of families of prominent Methodists (mostly clergymen) who married only once. Eleven percent had no surviving children and nearly half of the families consisted of two children or less. The dotted line shows the families of those who were twice married. It would naturally be expected that two women would bear considerably more children than one woman, but as an average fact it appears that a second wife means the addition of only half a child to the minister's family. It is impossible to avoid the conclusion that the birth-rate in these families is determined more by the desire of the parents (based on economic grounds) than on the natural fecundity of the women. In other words, the number of children is limited to the number whom the minister can afford to bring up on his inadequate salary.] Against this it might be argued that the desired result will never be wholly attained, because the most effective means of birth control involve some expense, and because their effective use presupposes a certain amount of foresight and self-control which is not always found among the lower strata of society. Despite certain dangers accompanying a widespread dissemination of the knowledge of how to limit births, it seems to be the opinion of most eugenists that if free access to such information be not permitted that at least such knowledge ought to be given in many families, where it would be to the advantage of society that fewer children be produced. Such a step, of course, must be taken on the individual responsibility of a doctor, nurse or other social worker. A propaganda has arisen during recent years, in the United States, for the repeal of all laws which prohibit giving knowledge about and selling contraceptives. Whether or not it succeeds in changing the law it will, like the Bradlaugh-Besant episode, spread contraception widely. This propaganda is based largely on social and economic grounds, and is sometimes unscientific in its methods and avowed aims. But whatever its nature may be, there seems little reason (judging from analogy in European countries) to believe that it can be stopped.