“At this age the healthy boy brought up simply and naturally never evades an obstacle, a difficulty; nay he seeks it and overcomes it. ‘Let it lie,’ the vigorous youngster exclaims to his father, who is about to roll a piece of wood out of the boy’s way--‘let it lie, I can get over it.’ With difficulty, indeed, the boy gets over it the first time; but he has accomplished the feat by his own strength. Strength and courage have grown in him. He returns, gets over the obstacle a second time, and soon he learns to clear it easily.… The most difficult thing seems easy, the most daring thing seems without danger to him, for his prompting comes from the innermost, from his heart and will.”--_E., p. 102._ “Many of the plays and occupations of boys at this age are predominantly mere practice and trials of strength, and many aim simply at display of strength.… _The boy tries to see himself in his companions, to feel himself in them, to weigh and measure himself by them, to know and find himself with their help._”--_E., pp. 112-114._ In passing, it may be suggested that it hardly seems worth while to postulate an Instinct of Repulsion with the impulses or actions of rejecting evil-tasting substances from the mouth and of shrinking from objects which are slimy or slippery. Surely the rejection of unsuitable food might be a compound reflex action tending to the preservation of health; while shrinking from slimy objects, and even from the touch of fur, might have had their uses in the case of children left in caves, and might be drawn under the instinct of fear. There does not seem to be anything to which Mr. McDougall would take exception in what Froebel has to say about Play or about Imitation. As to play, Froebel must be regarded as a pioneer in the attempt to explain a subject all important to educators, and by his explanation certain kinds, and notably imitative play find an appropriate place under his instinct of investigation (Forschungstrieb). “The means of shadowing forth to the child his own nature and that of the cosmos are his play and playthings.”--_P., p. 201._ As the word Investigation certainly implies activity, it may be permissible to wonder why Mr. McDougall has not made use of the terms “The Instinct of Investigation and the Emotion of Curiosity,” the more so that he himself has clearly a strong inclination to use the word curiosity to express emotion.[31] Imitation, as we have seen,[32] is, according to Froebel, action which renders a child conscious of what is around him, conscious of his inner life of perceptions, ideas and feelings, conscious of his own power. Froebel also points out that imitation, as well as habit, is the outcome of a more fundamental impulse to activity.