approved: K. S. Pilcher In this study of toxigenic and non -toxigenic strains of Clostridium botulinum type E, attempts were made to induce toxin production in non -toxigenic cultures by exposure to mutagenic agents and to differentiate the organisms by immunodiffusion. First, cultures of non -toxic Cl. botulinum type E were exposed to various mutagenic agents in an attempt to produce toxigenic...