In the fifth month no new consonants were developed except _k_; but a merely passive _goe_, _koe_, _aggegg[)e]koe_, the last more rarely than the first, was heard with perfect distinctness during the child's yawning. While in this case the _g_-sound originates passively, it was produced, in connection with _oe_, evidently by the position of the tongue, when the child was in a contented frame, as happens in nursing; _oegoe_ was heard in the twenty-second week, as well as _ma-oe-[)e]_, _h[)a]_, _[=a]_, _ho-ich_. The _i_ here appeared more distinct than in the third month. The soft _ch_, which sounded like the _g_ in "Honig," was likewise quite distinct. About this time began the amusing loud "crowing" of the child, an unmistakable expression of pleasure. The strong aspirate sound _ha_, and this sound united with the labial _r_ in _brrr-ha_; corresponding in force to the voice, which had become exceptionally powerful, must likewise be regarded as expressions of pleasure. So with the sounds _aja_, _oerrgoe_, _[=a]-[=a]-i-[)o]-[=a]_, which the child toward the end of the first half-year utters as if for his own gratification as he lies in comfort. With these belongs also the frequently repeated "eu" of the French "heure," and the "oeu" of the French "coeur," which is not found in the German language, also the primitive sounds _ae_ and _oe_ (German). The lips contract very regularly, and are protruded equally in the transition from _ae_ to _oe_. I heard also _ijae_ cried out by the child in very gay mood. In the babbling and crowing continued often for a long time without interruption, consonants are seldom uttered, pure vowels, with the exception of _a_, less often than _ae_ and _oe_; _i_ and _u_ are especially rare.