Various shots from different angles of Dr. Hara in one of the "Freshwater Institute" laboratory, working with a microscope and other scientific equipment, studying the organisms that live in the bottom of lakes and streams, of a polygraph readout, of graphs on screen, of Dr. Hara at work with microscope and inserting electrodes in the nose of a fish, reaching for the effect of the pollution on the sense of smell. MCS of a woman lab technician watching a mayfly nymphette in jar with PAN MS of it. ECS of the mayfly nymphette in jar. PAN CS on a graph readout. CS of the woman at work. Various shots of a man technician at work in tank room, opening covers of several small tanks, studying the reaction of various creatures (worms, crayfish, rocks). LAMCS of another technician working on the atomic absorption photospectrometer. CSs of him doing injections in the machine with smoke coming out of it. CS of a digital readout. CS of graph readout. CS of the technician.