1. Letter from Almiro Blumenschein to Barbara McClintock Publication: Produced: 5 August 1966 Subject(s): South AmericaGeneticsZea maysChromosomes Archival Collection: The Barbara McClintock Papers (Profiles in Science)
2. Letter from William L. Brown to Almiro Blumenschein Publication: Produced: 30 August 1965 Subject(s): South AmericaZea maysGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)