The result of the formal procedure outlined is to define “co-relational” (correlational) types. A recent monograph by Fritz Giese may be used to illustrate the possibilities.[21] This is a statistical treatment of the data available in the German _Who’s Who_ of 1914. After Giese had eliminated those who were included on account of their hereditary position only, he had over ten thousand names left. He then distinguished thirty-three varieties of activity, which were grouped into the five major categories of art, social science, physical science, technology, and practical life. He also classified his subjects into those who were honored because of high-grade but essentially routine professional accomplishment, those who enriched their field of activity by some creative contribution, and those whose creativeness was unrestricted to their occupational field. The three types were the skilful, the productive, and the freely creative. Since the individual is not confined to one field of activity, the following scheme of connections was built up to show the relation between the person and the form of activity: (_a_) income source (the person regards a particular field as a “bread and butter” occupation); (_b_) successive activity field (the individual has deserted one field for another); (_c_) field of simultaneous double-production; (_d_) recreational activity. The relation of a person to a field of activity may show a splitting of his personality or a compensatory function. When a politician consciously decides to play golf or to collect pictures to relieve his mind from exclusive political preoccupations, he is realizing a compensatory value in this chosen field. When he finds himself impelled to try to live a double life of scientific investigation and political propaganda, he is exhibiting major, and contrasting, tendencies in his personality (splitting). Sometimes the tie between fields of activity which the same individual exploits is factual similarity, as when a politician becomes a literary man to the extent of writing the political history of a period. Sometimes the connection is a functional relationship, in that the same biopsychic dispositions are to be assumed to operate. Thus, business promotion and politics are intimately allied; sculpture and politics are not.