Gathering of young naturalists at the All-Union Agricultural Exhibition. Hike young tourists to places of Belarus fighting WWII, in the district of the Brest Fortress. Canoeing on the River. Volga Moscow schoolchildren to participate in the rally of young tourists. Visit the Kuibyshev hydroelectric station. Motor Rally in Moscow schoolchildren. Institute of Physiology. Ivan Petrovich Pavlov in Koltushi near the city of Leningrad. Employees of the institute are studying animals: monkeys, chimpanzees, dogs.