Scope and Contents Two addresses by Truman Squire Potter, "Respiratory disease parasites respire themselves and can be suffocated", (typescript, 10 p.), [ca. 1943], and "A pickle for a parasite", (typescript, 3 p.), [ca. 1943]; both concern research on vaccination against tuberculosis using asphyxiated mycobacterium tuberculosis. Includes press release, 1943 Dec. 3, concerning Potter’s work at Laboratory of Preventive Medicine of the University of Chicago.