1. Letter from H. Gobind Khorana to Francis Crick Creator: Khorana, Har Gobind, 1922-2011 Date: 22 May 1974 Genre: Letters (correspondence)Diagrams
2. Letter from H. Gobind Khorana to Francis Crick Creator: Khorana, Har Gobind, 1922-2011 Date: 12 April 1969 Genre: Letters (correspondence)
3. Letter from H. Gobind Khorana to Francis Crick Creator: Khorana, Har Gobind, 1922-2011 Date: 3 January 1967 Genre: Letters (correspondence)
4. Letter from H. Gobind Khorana to Francis Crick Creator: Khorana, Har Gobind, 1922-2011 Date: 8 November 1968 Genre: Letters (correspondence)