Once he heard me in the garden calling some one in a loud voice. He immediately imitated me, and afterward when he was asked "What does mamma do?" he understood the question at once, put out his lips, and made the same sound. He is very uneasy in strange surroundings, in strange places, or among strangers. My bracelet, too, he now calls _kopita_. _Mann_ is a new word. _O-patz_ means "playing on the piano," as well as "below, down there." When the piano is played he sings in a hoarse voice, with lips protruded, as well as he can, but does not get the tune. He likes to dance, and always dances in time. _Nocho_ (noch, yet) is a new word, which he uses much in place of _mehr_ (more), e. g., when he wants more food. He often plays with apples, which for this reason, and very likely because they are round, he calls _Ball_, as he does his rubber ball. Yesterday he had baked apples, mashed, with milk. He recognized the apple at once in this altered form, and said as he ate, _Ball!_ At this time he was not yet sixteen months old. _16th Month._--He is often heard to beg, or rather order, _Mamma opatz_ (play the piano). If I do not at once obey, he moves his little hands like a piano-player and begs _tatata_, _tatata_, imitating the music. He likes also to hear songs sung, and can already tell some of them, as _Gigagack_, _kucka_ _tralla_. He joins in singing the last of these. _17th Month._--He speaks his own name correctly, and when asked "Where is Adolph?" he points to his breast. As he is always addressed in the third person, i. e., by his name, he does not know any personal pronouns. The syllable _ei_ he often changes to _al_; e. g., he says _Papagal_ instead of "Papagei." He had some grapes given to him for the first time, and he at once called them _mammut_ (berries). Being asked, "How do you like them?" he pressed his hand on his heart in an ecstasy of delight that was comical, crying _ach! ach!_ _18th Month._--He comprehends and answers questions; e. g., "Where are you going?" _Zu Tuhl_ (to the chair). "What is that?" _Bett tuddu_, i. e., a bed for sleeping. "Who gave you this?" _Mamma_, _Pappa_. He can now say almost any word that is said to him, often mutilating it; but, if pains be taken to repeat it for him, he pronounces it correctly. He often tacks on the syllable _ga_, as if in endearment, _mammaga_, _pappaga_, _nianiaga_. The _forming of sentences is also beginning_, for he joins two words together, e. g., _Mamma kommt_ (comes), _Papa gut_ (good), _Ferd_ (for _Pferd_) _halt_ (horse stop). He says _wiebacka_ for Zwieback (biscuit), _Brati_ for Braten (roast meat), Goossmama for Grossmama (grandmamma). He pronounces correctly "Onkel Kuno, Suppe, Fuchs, Rabe, Kameel."