By frequent repetition of the words, "Give the hand," with the holding out of the hand, I have brought the child, in the fifty-second week, to the point of obeying this command of himself--a sure proof that he distinguishes words heard. Another child did the same thing in the seventh month. In this we can not fail to see the beginning of communication by means of ordinary language, but this remained a one-sided affair till past the third half-year, the child being simply receptive. During this whole period, moreover, from birth on, special sounds, particularly "sch (Eng., _sh_), ss, st, pst," just the ones not produced by the child, had a remarkable effect of a quieting character. If the child heard them when he was screaming, he became quiet, as when he heard singing or instrumental music. In the _first weeks of the second year of life_, the child behaves just as awkwardly as ever in regard to saying anything that is said to him, but his attention has become more lively. When anything is said to him for him to say--e. g., _papa_, _mama_, _atta_, _tatta_--he looks at the speaker with eyes wide open and mouth half open, moves the tongue and the lips, often very slightly, often vigorously, but can not at the same time make his voice heard, or else he says, frequently with an effort of abdominal pressure, _attai_. Earlier, even in the forty-fifth week, he had behaved in much the same way, but to the word "papa," pronounced to him, he had responded _rrra_. Once only, I remember, _papa_ was repeated correctly, in a faint tone, on the three hundred and sixty-ninth day, almost as by one in a dream. With this exception, no word could be repeated on command, notwithstanding the fact that the faculty of imitation was already active in another department. The syllables most frequently uttered at this stage were _nja_, _njan_, _dada_, _atta_, _mama_, _papai_, _attai_, _na-na-na_, _hatta_, _meen[)e]-meen[)e]-meen[)e]_, _moemm_, _moemma_, _ao-u_.