Group portrait from DNA: Forty Years - Perspective & Prospective Speakers. Photograph includes: Matthew Meselson, James D. Watson, Gunther Stent, Joshua Lederberg, David Balitmore, Harry Temin, among others.
Enclosure from Mark Ptashne to James D. Watson. 2 letters regarding the David Baltimore controversy published in the New York Times by John R. Menninger and Marc W. Kirschner.