A. Bastian relates of the Siamese children that they delight in repeating difficult sentences and alter their meaning while speaking rapidly, as Pho Pu Khün Me Pu (The grandfather near the grandmother) is changed to Pho Ku Khün Me Ku (My father near me, his mother), or Pit Patu Thöt, Pit Patu Thot (Shut the door, Shut the temple door), Mo Loi Ma Ha Phe, Phe Loi Pai Ha Mo (The floating pot bumped against the boat, and _vice versa_), etc.[85] “Negro mothers on the Loango coast,” says Pechnel-Loesche, “teach their children verses which trip the tongue when spoken rapidly.”[86] A similar sport for adults is afforded by the students’ song, Der Abt von Philippsbronn, in which the syllable “bronn” must be repeated four times. After the first time there is a “Pst!” sound, after the second a “Pfiff!” after the third a “Click!” and after the fourth a snore, all given as rapidly as possible. The accelerated _tempo_ in the country song in Don Juan and in the wedding feast of the dwarfs in Goethe’s Hochzeitslied are of the same character. Other instruments besides the human voice are employed in sound-play. Even parrots and monkeys have found pleasure in other noises than the practice of their own voices. The young gorilla, in his exuberance of spirits, drums on his own breast, or, with even more satisfaction, on any available hollow object, such as a bowl, a cask, etc. The child’s first auditory satisfaction derived from any act of his own is probably the splashing of water; another is the rustling of paper. Preyer says: “The first sound produced by himself which gave the child evident satisfaction was the rattling of paper. He often indulged in this, especially in his nineteenth week.”[87] Strümpell noticed the same thing at six months, and also that it gave his little daughter pleasure to pat the table with the palm of her hand[88] (rhythmic repetition again). The boy observed by Sully was in the beginning of his eighth month when he one day accidentally dropped a spoon from the table where he was playing with it. “He immediately repeated the action, now, no doubt, with the purpose of gaining the agreeable shock for his ear. After this, when the spoon was put into his hand he deliberately dropped it. Not only so, like a true artist, he went on improving on the first effect, raising the spoon higher and higher, so as to get more sound, and at last using force in dashing and banging it down.”[89] At nine months Preyer’s child beat twelve times on the stopper of a large caraffe with increasing force. “On the three hundred and nineteenth day,” he goes on, “occurred a notable acoustic experiment which denoted much intellectual progress. He struck the spoon on his tray just as his other hand accidentally moved it. The sound was deadened, and the child noticed the difference. He took the spoon in his other hand and struck the tray, deadening the sound intentionally, and so on repeatedly. In the evening the experiment