Without doubt, instruction should be given to a boy by his parents in the home. When young children ask questions with regard to reproduction, parents should neither ignore these question nor give the usual silly answers. If the occasion on which the question is asked is not one in which an answer can appropriately be given, the child should be gently warned that the question raised is one about which people do not openly talk, and the promise of an answer hereafter should be made. Then, at the first convenient hour, the child can either be given the information he seeks or told that he shall hear all about the matter at some future specified time, as for example, his sixth or eighth birthday. In the absence of questions from a child, the ideal thing would be for the child, at the age of six, seven, or eight, to learn orally from his mother the facts of maternity and to receive warning against playing with his private parts. Whether at this time it is best to teach him the facts of paternity is, I think, doubtful. Canon Lyttelton is strongly of opinion that the father's share in the child's existence should be explained when the mother's share is explained, and there is much weight in what he says. If the question of paternity is reserved, it should not be on the ground that there is anything embarrassing or indelicate about the matter, and, when the facts are revealed, the child should clearly understand that they have been withheld merely until his mind was sufficiently developed to understand them. The only safe guide in such matters is experience, and of this as yet we have unfortunately little. The question next arises: should it be the mother or the father who gives this instruction? As regards the earlier part of the instruction a confident reply can be made to this question. The information should be given by the parent whose relations with the child are the more intimate and tender, and whose influence over him is the greater. This will, of course, usually be the mother. The subject of paternity may, if reserved for future treatment, be appropriately given by the father, provided that he and his son are on really intimate terms. If timely warning is given to a child about playing with his private parts, no reference need be made to self-abuse until a boy leaves home for school, or until he is nearing the age of puberty.