In the tenth week, _ah! ah!_ was an utterance of joy; in the thirteenth, the child sings, all alone; in the nineteenth comes the guttural utterance, _grrr_, but no consonant is assigned to this period. In the first half-year are heard distinctly, in the order given, _ei_, _aga_, _eigei_, _ja_, _ede_, _dede_, _eds_, _edss_, _emme_, _meme_, _nene_, _nein_. In the eighth month, there is unmistakable understanding of what is said; e. g., "Where is the tick-tack?" In the ninth, _am_, _amme_, _ap_, _pap_, are said; she sings vowels that are sung for her. In the eleventh month, imitation of sounds is frequent, _kiss_, _kiss_; at sight of the tea-kettle, _ssi_, _ssi_; she knows all the people in the house; calls the birds by the strange name _tibu_. Echolalia. In the fourteenth month, needles are called _tick_ (_stich_ = prick or stitch). To the question, "Where is Emmy?" the child points, correctly, to herself; says distinctly, _Kopf_ (head), _Buch_ (book), _roth_ (red), _Tante_ (aunt), _gut_ (good), _Mann_ (man), _Baum_ (tree); calls the eye (Auge) _ok_, Pruscinsky _prrti_, the dog _uf, uf_. In the seventeenth month, simple sentences are spoken; she speaks to herself. In the nineteenth month, she calls herself by her name, and counts _twei_, _drei_, _uempf_, _exe_, _ibene_, _atte_, _neune_ (zwei, drei, fuenf, sechs, sieben, acht, neun--2, 3, 5, 6, 7, 8, 9); in the twenty-second month, she talks a good deal to herself, and makes very rapid progress in the correct use of words and the formation of sentences.