Arrival in Moscow from Leningrad of members of the International Congress of Soil Scientists, a meeting of the Congress at the Timiryazev Academy, speeches by scientists, scientists visiting the experimental station of the Timiryazev Academy, including Academician D. N. Pryanishnikov. Construction work at Dneproges. Test bike ride "Kharkov - Voronezh". Workers at the machines in the handicraft workshop of the Institute of Construction of the Supreme Council of the National Economy make hydrometric turntables to determine the speed of water flow; unfinished workshop building.