Titles
- Letter from Sofia "Topsy" (Simmonds) Fruton to Joshua Lederberg7
- Letter from Tracy M. Sonneborn to Sol Spiegelman7
- Letter from W. Gordon Whaley to Joshua Lederberg7
- Letter from Wilfred E. Razzell to Joshua Lederberg7
- Letter from William F. Raub to Joshua Lederberg7
- Letter from William T. Golden to Joshua Lederberg7
- Postcard from Gordon Allen to Joshua Lederberg7
- Seminar Minutes7
- University of Colorado School of Medicine Department of Surgery Newsletter7
- [SUMEX annual report] (pages 1-25)7
- ACME annual report6
- Annual Report of the Laboratory of Biochemical Genetics [summary of laboratory projects]6
- Lakes Area Regional Medical Program Forum6
- Letter from A. R. Gopal-Ayengar to Joshua Lederberg6
- Letter from Alexander Rich to Francis Crick6
- Letter from Bruno B. Rossi to Joshua Lederberg6
- Letter from Carl Sagan to Joshua Lederberg6
- Letter from Charles A. Doan to Florence R. Sabin6
- Letter from Clifford Grobstein to Joshua Lederberg6
- Letter from David M. Mumford to Joshua Lederberg6