This indicative-type of literature review of research developments in adult education in the years 1970-1973 covers adult basic education, administration and planning, adult characteristics, adult education as a profession, business and industry, continuing education for the professions, cooperative and agricultural extension services, evaluation, international and comparative adult education methods and techniques, military training, and special clientele groups. Under each of these categories, two or three studies are cited to illustrate the kind and the trend of the research. (Author)