138 THE AMERICAN JOURNAL OF SOCIOLOGY
2. Economics.
(a) Tasks and types of economic theory.
(b) Abstract economic theory. if) Concrete economic doctrine.
(d) Theoretical and practical political economy.
3. The science of law.
(a) The development of law.
{b) The idea of law and the tasks of the juridical sciences.
(f) The " civilistic " and the " publicistic " method.
(d) Norms and definitions of law.
[e) Legal deduction and juristical proof.
4. The principles of sociology. (a) Society and community. {p) The organization of society.
(c) The social laws.
(d) The social norms. Chap. V. The Methods of Philosophy.
1. The methodological tendencies of philosophy.
2. The empirical method.
3. The dialectic methods. (a) The antithetic method, (i) The ontological method.
(c) The method of development of immanent ideas.
4. Philosophy as theory of the sciences.
The different kinds of knowledge needed about the world of people and their relations to the world of things appear in better correlation in a modification of De Greef's scheme (p. 139).
The point to be emphasized here is not the finality of De Greef's classifications, but that it is necessary to learn about all the subjects charted by De Greef, and to study them according to plans which we shall go on to outline. No individual student is sure of ever reaching the point at which he is conscious of a need of going outside of one or other of the divisions of fact about the world of people, in order to organize that division into relationship with other divisions. Much less is any single student sure to reach a conscious need of more abstract generalizations of the facts contained in these divisions than summary formulas of the laws of sequence which operate there. Those needs exist, however, in the nature of the world of people and in the corresponding requirements of thought. That world will not be understood unless the needs are recognized. In outlining the elements of the social problem, then, I shall trace the steps by which,
