Typed letter from H.J. Muller to Elof Carlson regarding Elof's appointment to UCLA and about the difficulties of presenting resonable eugenics ideas to the public due to the influence of the Nazis and those who continue to think like them, 1960.
Typed letter with handwitten additions and postscript from H.J. Muller to Elof Carlson regarding who to consult about writing a biography of Muller, 1963.