How different children’s mental attitude may be towards the new and unfamiliar is illustrated by some notes on a boy sent me by his mother. This child, “though hardly ever afraid of strange people or places, was very much frightened as a baby _of familiar things seen after an interval_”. Thus “at ten months he was excessively frightened on returning to his nursery after a month’s absence. On this occasion he screamed violently if his nurse left his side for a moment for some hours after he got home, whereas he had not in the least objected to being installed in a strange nursery.” The mother adds that “at thirteen months, his memory having grown stronger, he was very much pleased at coming to his home after being away a fortnight”. This case looks puzzling enough at first, and seems to contradict the laws of infant psychology. Perhaps the child’s partial recognition was accompanied by a sense of the uncanny, like that which we experience when a place seems familiar to us though we have no clear recollection of having seen it before. What applies to places applies also to persons: a sudden change of customary human surroundings by the arrival of a stranger on the scene is apt to trouble the child. At first all faces seem alike for the child. Later on unfamiliar faces excite something like a grave inquisitorial scrutiny. Yet, for the first three months, there is no distinct manifestation of a fear of strangers. It is only later, when attachment to human belongings has been developed, that the approach of a stranger, especially if accompanied by a proposal to take the child, calls forth clear signs of displeasure and the shrinking away of fear. Preyer gives the sixth and seventh months as the date at which his boy began to cry at the sight of a strange face. In one set of notes sent me it was remarked that a child of four and a half months would cry on being nursed by a stranger. To be nursed by a stranger, however, is to have the whole baby-world revolutionised; little wonder then that it should bring the feeling of strangeness and homelessness. Here, too, curious differences soon begin to disclose themselves, some children being decidedly more sociable towards strangers than others. It would be curious to compare the age at which children begin to take kindly to them. Preyer gives nineteen months as the date at which his boy surmounted his timidity; but it is probable that the transition occurs at very different dates in the case of different children.[138] ----- Footnote 138: This true fear of strangers must be distinguished from the later shyness, which, though akin to it, is a more complex feeling. -----