Experiment on animals: shots of scientist and two assistants loading circular plastic container with white mice, inoculating some of the animals. Cut to sign on door re radioactivity. Shot of technician carrying loaded container into room, placing container on stand. HAS of container turning slowly. MCS of rats in their separate compartments, passing slowly by camera. MS of four rats on table, one looking dead or very sick as result of the experiment. Shots of technician applying electrode to back of rabbit on table. Shots of animal with electrode in place. Various shots of two men, putting electrodes on dog, adjusting apparatus on dog's back. Various shots of automatic recording graph, of oscilloscope in operation. Cut to dog with test equipment on his back, hand fondling dog's head to keep it quiet.