1. The farm Kalinin, Guba branch harvesting potatoes (no sound). 2. Manufacture of fluorescent lamps (without sound). 3. Ibw of Sciences of the USSR, laboratory studies, fish study (partly without sound). 4. Topical (farm "Rechitsa" in Bryansk region, the Yaroslavl laboratory of the Institute of lacquers and paints, Muromsky Zavod imeni Ordzhonikidze, Ivanovo plant of trade equipment). 5. Art exhibition in Smolensk.
Poddubnij A.G. -- doctor of biological Sciences, head of laboratory of ichthyology Institute of biology of inland waters USSR Academy of Sciences (ibw of Sciences of the USSR).