61. Letter from Francis Crick to Warren Weaver Creator: Crick, Francis, 1916-2004 Date: 6 July 1964 Genre: Letters (correspondence)
62. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 13 April 1967 Genre: Letters (correspondence)
63. Letter from Linus Pauling to Francis Crick Creator: Pauling, Linus, 1901-1994 Date: 25 April 1967 Genre: Letters (correspondence)
64. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 24 March 1967 Genre: Letters (correspondence)
65. Letter from Paul Doty to Francis Crick Creator: Doty, Paul M., 1920-2011 Date: 16 March 1967 Genre: Letters (correspondence)
66. Letter from John T. Edsall to Francis Crick Creator: Edsall, John T. Date: 14 March 1967 Genre: Letters (correspondence)
67. Letter from Marshall W. Nirenberg to Francis Crick Creator: Nirenberg, Marshall W. Date: 7 May 1966 Genre: Letters (correspondence)
68. Letter from Francis Crick to Lawrence Bragg Creator: Crick, Francis, 1916-2004 Date: 23 February 1967 Genre: Letters (correspondence)
69. Letter from Francis Crick to Maurice Wilkins Creator: Crick, Francis, 1916-2004 Date: 19 January 1967 Genre: Letters (correspondence)
70. Letter from Nathan M. Pusey, Harvard University to Francis Crick Creator: Pusey, Nathan M.Harvard University Date: 9 December 1966 Genre: Letters (correspondence)
71. Letter from Francis Crick to Nathan M. Pusey, Harvard University Creator: Crick, Francis, 1916-2004 Date: 23 December 1966 Genre: Letters (correspondence)
72. Letter from Nathan M. Pusey, Harvard University to Francis Crick Creator: Pusey, Nathan M.Harvard University Date: 13 January 1967 Genre: Letters (correspondence)
73. Letter from James D. Watson to Maurice Wilkins Creator: Watson, James D., 1928- Date: 28 November 1966 Genre: Letters (correspondence)
74. Letter from Francis Crick to Nathan M. Pusey, Harvard University Creator: Crick, Francis, 1916-2004 Date: 1 December 1966 Genre: Letters (correspondence)
75. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 1 November 1966 Genre: Letters (correspondence)
76. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 23 November 1966 Genre: Letters (correspondence)
77. Letter from Francis Crick to Marshall W. Nirenberg Creator: Crick, Francis, 1916-2004 Date: 10 May 1966 Genre: Letters (correspondence)
78. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 10 October 1966 Genre: Letters (correspondence)
79. Letter from Maurice H. F. Wilkins to James D. Watson Creator: Wilkins, Maurice, 1916-2004 Date: 6 October 1966 Genre: Letters (correspondence)
80. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 19 October 1966 Genre: Letters (correspondence)