On the third day the father, when chuckling and calling to the child at a short distance, fondly supposed that his offspring showed appreciation of these attentions by regarding him with a sweet expression and something like the play of a smile about the lips and eyelids. But it is possible that this apparent amiability was nothing but a purely animal satisfaction after a good meal. As to _seeing_ his father’s face at that early age, there is room for serious doubt. Preyer found that long before the close of the first day his child wore a different expression when his face, turned towards the window, was suddenly deprived of light by the intervention of the professor’s hand. If the child is thus sensible to the pleasure of light it is, of course, conceivable that C.’s eyes, happening in their aimless wanderings to be brought together opposite the bright patch of the father’s face, might maintain that attitude under the stimulus of the pleasure. The father argues in favour of this view by quoting the fact that C.’s sister was observed on the fourth day to have her eyes arrested by a light or the father’s face if brought pretty near the child; yet such blank staring at mere brightness is, of course, a long way off from distinct vision of an object. On the fourth day, continues the sanguine father, the child showed a distinct advance in the use of the hands. Having clasped his sire’s finger he now moved it in what looked like an abortive attempt to carry it to his mouth. There follow some remarks on the impulse of infants to carry objects to their mouths, in which again there seems an approach to frivolity in the conjecture that the human animal previous to education is all-devouring. It is to be noted, however, that these early movements are probably quite accidental. As we shall see, it is some weeks before the child learns to carry objects to his mouth. As to the connexion between this movement and infantile greed our observer is not so poor a psychologist as not to see that it may be due to the circumstance that the lips and the tip of the tongue form one of the most delicate parts of the _tactual_ organ. It is not improbable that in the evolution of man before the tactual sensibility of the hand was developed these parts were chiefly employed as a tactual apparatus in distinguishing and rejecting what is hard, gritty and so forth in food. However this be, it is probable that, as Stanley Hall has suggested, an infant may get a kind of “æsthetic” pleasure by bringing objects into contact with the lips and the gums. At this period, the diary remarks, the child was very cross for some weeks and not a good subject for observation. This new difficulty, added to that of overcoming natural scruples in his guardians, appears to have baffled the observer for a time, for the next observations recorded take up the thread of the child’s history at the sixth week.