GDR - Report from the city of Gotha in Thuringia. The building, which in 1875 was established Socialist Workers' Party, the museum. GDR - Report from the city of Gotha in Thuringia. The building, which in 1875 was established Socialist Workers' Party, the museum, etc. Hungary - Contamination of water. Domestic facilities. Europe - Contamination of water. The death of the fish. Treatment plant. France - The beavers build a dam. Netherlands - Contamination of water. International exhibition of water purification plants "Aquatex - 72" in Amsterdam. Italy - Tourists, young people in the square of Spain in Rome, selling gaudy souvenirs, jewelry.