MS of laboratory technicians near pail of autoclaves, of girl taking out surgical tools, bringing them to table where woman is operating on white mouse. Various interior CUs and MSs of experiments being performed, of technicians looking through microscopes. CU PAN of row of chemical jars on shelf. CU PAN of row of hypodermic needles, of rubber gloves on pad. CU of hand raising hypodermic needle, squirting it. DOLLY IN to CU of tier of animal cages. MS of attendant putting white mice in cages. CU of rat and white mouse fraternizing on table.