41. Letter from Daniel Nathans to Ray Wu Creator: Nathans, Daniel, 1928-1999 Date: 20 December 1973 Genre: Letters (correspondence)
42. Letter from Daniel Nathans to Bernard Weisblum Creator: Nathans, Daniel, 1928-1999 Date: 11 December 1973 Genre: Letters (correspondence)
43. Letter from Ray Wu to Daniel Nathans Creator: Wu, RayNew York State College of Agriculture and Life Sciences Date: 11 December 1973 Genre: Letters (correspondence)
44. Letter from Bernard Weisblum to Daniel Nathans Creator: University of Wisconsin. School of MedicineUniversity of Wisconsin Medical CenterWeisblum, Bernard Date: 16 November 1973 Genre: Letters (correspondence)
45. Letter from Daniel Nathans to David McConnell Creator: Nathans, Daniel, 1928-1999 Date: 9 October 1973 Genre: Letters (correspondence)
46. Letter from David McConnell to Daniel Nathans Creator: McConnell, DavidUniversity College Dublin Date: 7 September 1973 Genre: Letters (correspondence)
47. Letter from Daniel Nathans to Paul Berg Creator: Nathans, Daniel, 1928-1999 Date: 23 July 1973 Genre: Letters (correspondence)
48. Letter from Maurice R. Hilleman to Paul Berg Creator: Merck Institute for Therapeutic ResearchHilleman, Maurice R. Date: 10 July 1973 Genre: Letters (correspondence)
49. Letter from Paul Berg to Daniel Nathans Creator: Berg, PaulStanford University. Medical Center Date: 11 June 1973 Genre: Letters (correspondence)
50. Letter from Daniel Nathans to Larry Gold Creator: Nathans, Daniel, 1928-1999 Date: 5 April 1973 Genre: Letters (correspondence)