Negroes. National negro health week, Apr. 1-7, 1923, 9th annual observance featuring year-round health program, under auspices of Annual Tuskegee Negro Conference and National Negro Business League, in cooperation with Public Health Service, State boards of health, National Health Council, national and State medical associations, national and State associations of graduate nurses, American Social Hygiene Association, National Child Welfare Association, National Tuberculosis Association, American Red Cross, and other organizations interested in health welfare and public health education.