Moscow city. Meeting of the XIII International Congress on Theoretical and Applied Mechanics. Speakers: N. I. Muskhelishvili, M. V. Keldysh. Workshops, computing center, equipment, storage tanks for the products of the Ryazan oil refinery. Cleaning grain on the farm "Nikolsky" in the Volgograd region. Watering of rice fields in the Kuban and in the Teuchezhsky district of the Adyghe autonomous region. Dispatcher at the central control panel for water distribution in irrigation facilities. Moscow city. Gala evening at the House of Friendship with the Peoples of Foreign Countries, dedicated to the 25th anniversary of Pakistan's independence. Charge d'Affaires of Pakistan in the USSR M. Ahmad speaking. All-Union Exhibition and Review of Consumer Goods at the Exhibition of Achievements of the National Economy of the USSR. Fighting fires in peat bogs in the Moscow region. Bulldozer, bucket wheel excavator digging in areas with fire. Explosions suppressing hotbeds of fire. Firefighters pour water over the fire from hoses. Moscow city. 6th European Scuba Diving Championship. Swimming of men, women with scuba diving.