Of ali the different aspects of occupational sociology that can be delineated, studies of the professions seem to have attracted more sociological research than any other. Any discussion of the pro fessions must therefore explore at the outset why this should have occurred. Possibly the most important reason is that of ali occupations, it is the professions that have grown in size and importance the most during the course of the present century. Significant changes of this kind must have important effects upon the social structure and upon the non-professional occupational sector. In other words, the growth of the professions can be ex amined as part of a social process and as such has attracted the interest of the sociologist.