Note 67 — PART I PLAYFUL EXPERIMENTATION
Elizabeth L. Baldwin translation
Somewhat akin to inspiratory sounds are the clicking noises which children often produce. These are well known to play a considerable part in the language of the Hottentots. For the influence of the self-originated language of children on the speech of adults, and for the analogy between child-language and that of the lower races, see H. Gutzmann, Die Sprachlaute des Kindes und der Naturvölker, Westermann’s Monatshefte, December, 1895.