Girls, as well as boys, should, _before puberty_, be taught the simple facts of sex, and this should be done in connection with other simple science teaching. They will accept these facts quite serenely, if they are not greatly stressed and differentiated from other knowledge. They should not be troubled with pathology until they are full grown. Boys and girls should be brought up together, and the barrack system of living should be entirely abolished for both sexes. This does not mean that boys and girls should do all the same things, either in work or play; these should be adapted to the ascertained capacities of the individuals and not arranged on rigid _a priori_ schemes. If the girl has grown to young womanhood with a healthy and active body and mind, she will have all the essentials for good motherhood, and if she wishes to learn the details of mothercraft, by all means give her opportunity to do so. But it is not necessary, or even desirable, to force every young woman to do this. If she is broadly developed as a human being, she can learn mothercraft when she is about to marry. Then, indeed, she should learn it, and the man who is about to marry should also study the duties of parentage. It is one of the fond delusions of middle-class reactionaries that a girl will be a better mother if she idles about at home when she has left school, instead of taking up some definite and attaching work. This is absolutely untrue. Many of the qualities that go to make a good mother can be developed and strengthened in other work. The aimless, vacuous young woman of our middle classes is a standing reproach to her parents, who are silly enough to require or allow her so to waste all her virtue, and in the end allow it to die of atrophy. The parasitic daughters require a whole book to themselves, and I hope they will get it. For my part, when I consider the mixture of petting and tyrannising to which they are subjected in the home, I am more often surprised by their sense than by their folly. That they ever do anything useful is to their credit, when one thinks how their lives are ordered to discourage purpose, concentration, thoroughness, independence and responsibility.