Includes: protocols and shorthand reports of the Section sessions; Section's decisions (after 1975); accounts of scientific and administrative activity of the Section (after 1968); annual accounts of activity of the Section's institutions (the Committee on Scientific and Technical Terminology, the Interdepartmental Geophysical Committee, the Geographical Society, the Astronomical Council, the Scientific Council on "Solid State Physics", Scientific Council on Electron Microscopy, the Scientific Council on "Sun-Earth," the Commissions on Spectroscopy, Interdepartmental Commission on the Exploration of the Anarctic, the Council on the Problems of the Water Industry, the Permanent Commission on the Scientific Problems of Transport Development, and others; accounts of participation of the Section's institutions in realization of the complex program of cooperation with profile institutions in the states--members of the Council for Mutual Economic Aid (1973, 1974); reports of the Section's institutions on carrying out the scientific research and on expediency of forming new institutions; proposals of the scientific institutions of the Sections concerning new prospects of the Academy's activity 'til 2000; documents concerning prospects of scientific research in the Section's institutions; documents on awarding the academic prizes (Iablochkov, Chaplyguin, etc.); correspondence with other academic institutions on participation of soviet scientists in international scientific conferences and meetings, about invention and patenting, about environment and ecological problems, etc.