The cause of this strangeness of feeling in a child, arises from the predominance of the principle of grouping, over that of classification. He has as yet no knowledge of any of the apartments in the house, except what he has received by grouping their contents. When, therefore, their arrangement is materially altered, the reasoning powers not being as yet able to soften down the effect, the former apartment appears to the child as if it had ceased to exist. He can scarcely believe it to be the same. He never thinks of the _uses_ of the articles in the apartment, but only of their _appearance_;--the first being an act of the judgment,--the latter of the imagination. In a similar manner he thinks of the kitchen and its furniture, not as a part of the household economy, but only in connection with the articles it contains. The dresser, the jack, and the tin covers, are never thought of in connection with their uses; but are identified with the kitchen, merely because they have always been seen there, and seen together. In like manner, the seats, the tables, and the ornaments of the drawing-room, are not connected in the child's mind because they are what are commonly called "drawing-room furniture," for that would imply a degree of reasoning of which he is as yet unacquainted; but they are remembered together, as they have always been observed in that particular place, and are now pictured on the mind, in the position in which they are usually beheld. Their particular locality in the room, and their relative position with respect to each other, are of far more importance in assisting the memory of the child, than any knowledge which he has as yet acquired of their respective uses. Though a child had in this way gained an exact knowledge of every apartment in a house, it is obvious that there may not have been, during the whole process, a single act of the understanding. Many of the lower animals are capable of collecting all the knowledge he has received; and even infants are, to a certain extent, in the daily habit of acquiring it. But the classification of objects, according to their nature and uses, is an operation of a perfectly different kind. Hence it is, that a change in the arrangement of the furniture of a room acts so slightly on the feelings of the adult, and so powerfully on the young. In the former, the reasoning powers neutralize the effect produced; to the latter, the change appears a complete revolution.