Scope and Contents Topics include National Conference on Air Pollution of 1966, air pollution, dietary supplements, labels law and legislation, overpopulation, water pollution, and veterinary medicine. Correspondents include Ernest Gruening, Sargent Shriver, Oklahoma Department of Public Welfare, United States Department of Health, Education, and Welfare, United States Food and Drug Administration, United States Public Health Service, and Eunice Kennedy Shriver.