1. Letter from Roy D. Schmickel to Ching-Juh Lai Creator: ?The? University of EdinburghSchmickel, Roy D. Date: [1976] Genre: Letters (correspondence)
2. Letter from Roy D. Schmickel to Daniel Nathans Creator: ?The? University of EdinburghSchmickel, Roy D. Date: 24 September 1975 Genre: Letters (correspondence)
3. Letter from Roy D. Schmickel to Daniel Nathans Creator: ?The? University of EdinburghSchmickel, Roy D. Date: [December 1975] Genre: Letters (correspondence)
4. Letter from Daniel Nathans to Roy D. Schmickel Creator: Nathans, Daniel, 1928-1999 Date: 8 October 1975 Genre: Letters (correspondence)
5. Letter from David C. Ward to Daniel Nathans Creator: Imperial Cancer Research Fund (Great Britain). LaboratoriesWard, David C. Date: 13 January 1971 Genre: Letters (correspondence)