March 1942 Issue [Article] Germ-killers from the earth Download PDF Adjust Share The story of gramicidin by John E. Pfeiffer, This article is only available as a PDF to subscribers. Download PDF Tags 20th century Bacteriology Gramicidins Research United States More from John E. Pfeiffer The apish origins of human tension The case of the amiable chimps and the nervous baboons The story of plasma Blood transfusion by remote control Sulfanilamide The story of a great medical discovery Adjust Share