41. Letter from Willard F. Libby, United States Atomic Energy Commission to Linus Pauling Publication: Produced: 2 May 1957 Subject(s): Radioactive FalloutLeukemia Archival Collection: The Linus Pauling Papers (Profiles in Science)
42. Letter from Leon A. Heppel to Maxine Singer Publication: Produced: 13 December 1955 Subject(s): PolynucleotidesNucleic Acids Archival Collection: The Maxine Singer Papers (Profiles in Science)
43. Letter from Wallace P. Rowe to Maxine Singer Publication: Produced: 11 August 1976 Subject(s): DNA, RecombinantGuidelines as Topic Archival Collection: The Maxine Singer Papers (Profiles in Science)
44. Letter from Donald S. Fredrickson to Daniel E. Koshland, Jr Publication: Produced: 23 August 1976 Subject(s): National Academy of Sciences (U.S.)Plasmids Archival Collection: The Maxine Singer Papers (Profiles in Science)
45. Memorandum from Michael Adler [summarizing the first day of hearings of the Thornton House Subcommittee on Science, Research, and Technology] Publication: Produced: 30 March 1977 Subject(s): DNA, Recombinant Archival Collection: The Maxine Singer Papers (Profiles in Science)
46. Testimony by David Baltimore for the Committee on Science and Technology Publication: Produced: 30 March 1977 Subject(s): DNA, RecombinantRisk Assessment Archival Collection: The Maxine Singer Papers (Profiles in Science)
47. Letter from U.S. Representative Paul G. Rogers to Maxine Singer Publication: Produced: 30 March 1977 Subject(s): DNA, Recombinant Archival Collection: The Maxine Singer Papers (Profiles in Science)
48. Minutes of the Eleventh Meeting of the Executive Recombinant DNA Committee Publication: Produced: 25 May 1978 Subject(s): DNA, Recombinant Archival Collection: The Maxine Singer Papers (Profiles in Science)
49. Cover memorandum about a Berkeley, California biohazards ordinance Publication: Produced: [1977] Subject(s): Legislation as TopicHazardous Substances Archival Collection: The Maxine Singer Papers (Profiles in Science)
50. Ordinance No. 5010: Regulating the Use of Hazardous Biological Research in the City of Berkeley Publication: Produced: 21 October 1977 Subject(s): Legislation as TopicHazardous SubstancesDNA, Recombinant Archival Collection: The Maxine Singer Papers (Profiles in Science)