connecting link is found in the stories, traditions, songs, and liturgies which accompany the doings and rites of a primitive social group. They represent the stock of meanings which have been precipitated out of previous experience, which are so prized by the group as to be identified with their conception of their own collective life. Not being obviously a part of the skill exhibited in the daily occupations of eating, hunting, making war and peace, constructing rugs, pottery, and baskets, etc., they are consciously impressed upon the young; often, as in the initiation ceremonies, with intense emotional fervor. Even more pains are consciously taken to perpetuate the myths, legends, and sacred verbal formulæ of the group than to transmit the directly useful customs of the group just because they cannot be picked up, as the latter can be in the ordinary processes of association.
As the social group grows more complex, involving a greater number of acquired skills which are dependent, either in fact or in the belief of the group, upon standard ideas deposited from past experience, the content of social life gets more definitely formulated for purposes of instruction. As we have previously noted, probably the chief motive for consciously dwelling upon the group life, extracting the meanings which are regarded as most important and systematizing them in a coherent arrangement, is just the need of instructing the young so as to perpetuate group life. Once started on this road of selection, formulation, and organization, no definite limit exists. The invention of writing and of printing gives the operation an immense impetus. Finally, the bonds which connect the subject matter of school study with the habits and ideals of the social group are disguised and covered up. The ties are so loosened that it often appears as if there were none; as if subject matter existed simply as knowledge on its own independent behoof, and as if study were the mere act of mastering it for its own sake, irrespective of any social values. Since it is highly important for
