Lectures

Viktor Hamburger to Martha Hamburger, April 20, 1950 and April 30, 1950
Letter about trip to Cambridge, lecturing at MIT and Harvard, Victor Twitty, Rita
Viktor Hamburger to Jane Maienschein [draft], August 5, 1995
Comments on talk
Rita Levi-Montalcini to Viktor Hamburger, January 1, 1978
Letter
Rita Levi-Montalcini to Viktor Hamburger, February 8, 1976
Letter
Jane Maienschein to Viktor Hamburger, July 25, 1995
Letter
Konrad Lorenz to Viktor Hamburger, July 11, 1966
Letter
Jane Maienschein to Viktor Hamburger, October 1, 1996
Letter
Konrad Lorenz to Viktor Hamburger, April 25, 1966
Letter
Konrad Lorenz to Viktor Hamburger, July 15. 1966
Letter
Konrad Lorenz to Viktor Hamburger, November 21, 1966
Letter

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