Included are progress reports from forty-two countries, ranging from accounts of complete adaptation and implementation of Biological Sciences Curriculum Study (BSCS) materials to notes of preliminary contact with BSCS programs. Countries represented are: Afganistan, Argentina, Australia, Bolivia, Brazil, Canada, Central America, Ceylon, Chile, Colombia, Czechoslovakia, Denmark, Great Britain, Hong Kong, India, Indonesia, Israel, Italy, Japan, Republic of Korea, Federation of Malaysia, Mexico, the Netherlands, New Zealand, Nigeria, Pakistan, Peru, Republic of the Philippines, Puerto Rico, Singapore, South Africa, Spain, Sweden, Taiwan, Thailand, Turkey, Union of Soviet Socialist Republics, Uruguay, Venezuela, Republic of Vietnam, Virgin Islands, and Yugoslavia. (EB)