Scope and Contents Note From the Collection: The collection spans from 1950 to 2009, with the bulk of materials ranging from 1969 to 2002. The collection is arranged chronologically.The EMS records are arranged in the following series:Series I: 1930s-1950s -- This series contains journal articles written by EMS members. It also includes correspondence between Hermann J. Muller and Joshua Lederberg prior to the society's founding, indicating a need for a society for those who research chemical mutagens....