A child is still at that stage of development when motion seems something wonderful. Is it possible that in this a secret (unconscious) sex-motive, such as is often felt by one when being rocked or swung in a swinging boat, does not play a part? Many adults admit this well-known effect of riding. This is in all probability one of the most potent and most hidden roots of the passion for travelling. Freud very frankly asserts in his “Contributions to a sexual theory” that rhythmical motion gives rise to pleasurable sensations in children. “The jolting in a travelling wagon and subsequently in a railway train has such a fascination for older children that all children, at least all boys, sometimes in their life want to be conductors and drivers. They show a curious interest in everything connected with trains and make these the nucleus of an exquisite system of sexual symbolism.” Be this as it may. The fact is that all the little ones want to become drivers of some vehicle, that they can play driver, rider, chauffeur, car, train, etc., for hours at a time, that in the first years of their lives their fantasies are fixed only on objects possessing the power of motion, beginning with the baby-carriage and ending with the aeroplane. This stage lasts a variable period in different children. In some cases up to puberty and some even beyond this. I know boys who have almost attained to manhood who are still inordinately interested in automobiles and railways. In these cases we are dealing with a fixation of an infantile wish which will exercise a decisive influence on the individual’s whole life. In most cases the first ideal loses its glamour before the magic of a uniform. The first uniform that a child sees daily is that of the “letter-carrier.” In his favour, too, is the fact that he is always on the go, going from house to house. The “policeman” too, promenading up and down in his uniform, engages the child’s fantasy. So too the dashing “fireman.” Needless to say all these are very soon displaced and wholly forgotten in favour of the “soldier.”