Some children will rub the lobule of the ear, others will suck their fingers, or will stimulate their mouths in other ways. Some children have the offensive habit of picking their nose; and it is evident that many cases in which children stimulate the genital organs manually are on the same footing with nose-picking and numerous similar habits. In such cases we have not to do with a specific genital sensation to which the child responds; but with a stimulus which may be pathological, but is not necessarily sexual. In many cases, indeed, the stimulus is not even pathological. We have to take the following point into consideration. As soon as the child begins to become conscious of the existence of its organs, it fingers them. It does this with its nose and its ears, just as it does with its feet; and it is obvious that the genital organs will receive the same treatment. A gentleman who had grown up in the country related to me that as a child he had often been present when cows were being milked, and that in the evenings, after he had gone to bed, he performed the milking movement on his penis, and was greatly astonished at the fact that no milk flowed forth. He assured me that the like experience had occurred to quite a number of boys who had been his playmates in the country. It is certain that such manipulations of the genital organs, entirely non-sexual in origin, may lead to the practice of masturbation. But we must not immediately conclude that every manipulation of the genital organs in a child is sexually determined.