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McClintock, Barbara. Letter from Barbara McClintock to William L. Brown. Letter (correspondence). 2 Images. 1 April 1959.
McClintock, Barbara. Letter from Barbara McClintock to David H. Timothy. Letter (correspondence). 2 Images. 4 May 1959.
McClintock, Barbara. Letter from Barbara McClintock to Curt Stern. Letter (correspondence). 2 Images. 14 February 1960.
McClintock, Barbara. "Chromosome Constitutions of Mexican and Guatemalan Races of Maize." Carnegie Institution of Washington Yearbook 59, (1960): 461-473. Article. 12 Images.
[McClintock, Barbara]. "Inter-American Maize Improvement Program of the Rockefeller Foundation." Proposal. 4 Images. [1960?].
McClintock, Barbara. Letter from Barbara McClintock to F. G. Brieger. Letter (correspondence). 2 Images. 2 April 1962.
McClintock, Barbara. Letter from Barbara McClintock to Harold Frank Robinson. Letter (correspondence). 2 Images. 10 September 1962.
McClintock, Barbara. "Six Plants Examined in Each Race." Chart. 1 Image. 15 July 1963.
McClintock, Barbara. Letter from Barbara McClintock to Angel Kato. Letter (correspondence). 2 Images. 6 January 1964.
Brown, William L. Letter from William L. Brown to Almiro Blumenschein. Letter (correspondence). 2 Images. 30 August 1965.
Blumenschein, Almiro. Letter from Almiro Blumenschein to Barbara McClintock. Cartographic Materials. Letter (correspondence). 6 Images. 5 August 1966.
McClintock, Barbara. Letter from Barbara McClintock to Almiro Blumenschein. Letter (correspondence). 2 Images. 20 August 1966.
McClintock, Barbara. Letter from Barbara McClintock to Almiro Blumenschein. Letter (correspondence). 1 Image. 30 November 1966.
McClintock, Barbara. Letter from Barbara McClintock to William L. Brown. Letter (correspondence). 1 Image. 19 January 1969.
McClintock, Barbara. Letter from Barbara McClintock to Oliver E. Nelson, Jr. Letter (correspondence). 2 Images. 29 May 1970.
McClintock, Barbara. Draft of letter from Barbara McClintock to Angel Kato. Draft. Letter (correspondence). 5 Images. 1 August 1970.
[McClintock, Barbara]. [Unpublished index of corn specimens]. Index. January 1971.
Beadle, George W. Letter from George W. Beadle to Barbara McClintock. Letter (correspondence). 5 Images. 22 January 1972.
McClintock, Barbara. Letter from Barbara McClintock to George W. Beadle. Letter (correspondence). 2 Images. 14 February 1972.
Beadle, George W. Letter from George W. Beadle to Barbara McClintock. Letter (correspondence). 6 Images. 17 February 1972.
McClintock, Barbara. Letter from Barbara McClintock to George W. Beadle. Letter (correspondence). 2 Images. 24 February 1972.
McClintock, Barbara. Letter from Barbara McClintock to Angel Kato. Letter (correspondence). 3 Images. 27 March 1972.
McClintock, Barbara. Letter from Barbara McClintock to William L. Brown. Letter (correspondence). 3 Images. 24 July 1974.
McClintock, Barbara. "How Chromosomes Have Been Used to Trace the Origin and Migration of Races of Maize in the Americas." Lecture. 13 Images. 16 April 1980.