Mr. W. F. Willoughby, in his Principles of Public Administration, holds that “the function of direction, supervision, and control of the administrative activities of the government resides in the legislative branch of the government.” More specifically, he states that, “in the case of our national government at least, Congress is the source of all administrative authority.” It may be suggested however, that an examination of existing systems of government shows a large amount of variation in this respect, and that three main systems may be recognized.
These three main systems may be noted in private as well as in public administration. In undertakings managed directly by a single person, he at the same time is the organizer of the business and conducts its operation. This may be called an autochthonous administration. In collective groups, or societies, a distinction appears between the determination of general policies by the group or society (or by a general committee) and the actual management by the officers or agencies set up by the central group for certain purposes.