The first observation made in regard to his child by Darwin, which seemed to him to prove "a sort of practical reflection," occurred on the one hundred and forty-fourth day. The child grasped his father's finger and drew it to his mouth, but his own hand prevented him from sucking the finger. The child then, strangely enough, instead of entirely withdrawing his hand, slipped it along the finger so that he could get the end of the finger into his mouth. This proceeding was several times repeated, and was evidently not accidental but intentional. At the age of five months, associations of ideas arose independently of all instruction. Thus, e. g., the child, being dressed in hat and cloak, was very angry if he was not at once taken out of doors. How strong the _reasoning power without_ words may be at a later period, the following additional observations show: From the time when my child, like Sigismund's (both in the fifteenth month), had burned his finger in the flame of the candle, he could not be induced to put his finger near the flame again, but he would sometimes put it in fun toward the flame without touching it, and he even (eighteen months old) carried a stick of wood of his own accord to the stove-door and pushed it in through the open slide, with a proud look at his parents. There is surely something more than an imitation here. Further, my child at first never used to let his mouth and chin be wiped without crying; from the fifteenth month on he kept perfectly quiet during the disagreeable operation. He must have noticed that this was finished sooner when he was quiet. The same thing can be observed in every little child, provided he is not too much talked to, punished, yielded to, or spoiled. In the nineteenth month it happened with my child that he resisted the command to lie down in the evening. I let him cry, and raise himself on his bed, but did not take him up, did not speak to him, did not use any force, but remained motionless and watchful near by. At last he became tired, lay down, and fell asleep directly. Here he acquired an understanding of the uselessness of crying in order to avoid obedience to commands.