Civilization shortens the period of the child’s physical dependence on the mother by shortening the period of lactation. On the other hand, it increases fecundity to such an extent that where religious superstition or ignorance prevents the use of contraceptives, the burden of childbearing is greatly increased. This result of civilization is not, however, commonly found among the educated classes; and even among those classes where children are most numerous, I have already shown that women are not restrained by motherhood from engaging in gainful occupations outside the home. On the contrary, the number of their offspring is more often their chief incentive to this course. Among well-to-do families, prepared foods and wet-nursing have for a long time been rather generally employed to relieve mothers even of the responsibility of lactation, while the custom of assigning the physical care of children to hired substitutes has reduced their actual work to that of bringing the child into the world. That this mode of caring for children is approved by all classes is evident from their readiness to adopt it when fortune favours them with an opportunity. It is occasionally inveighed against by moralists, but on the whole it is coveted and approved, especially while women devote to frivolous pursuits the leisure that it leaves them. When a woman adopts this mode in order to reconcile motherhood with a serious interest outside the home, it is a different matter, and lays her open to the charge of neglecting her family, though in fact she may spend no more hours away from home than the woman who gives her morning to shopping and her afternoon to playing bridge. Why this should be the case I am at a loss to know, unless it be that a serious interest outside the home appears to smack too much of an assertion of her right to live her life for her own sake rather than for the sake of the race or that of her husband--a self-assertion not readily to be accepted without such reservations as find expression in institutes designed to “co-ordinate women’s interests.”