Titles
- Letter from Joshua Lederberg to Thomas C. Nelson21
- Letter from Joshua Lederberg to William Hayes21
- Postcard from Karl Paul Link to Joshua Lederberg21
- Sida21
- The dispensatory of the United States of America21
- U. S. Army Hospital Center, Beau Desert, France: Exterior view21
- [Russian Scientists visit the National Library of Medicine]21
- Haymaker Oriental Tour 195120
- Letter from David M. Bonner to Joshua Lederberg20
- Letter from Edward A. Adelberg to Joshua Lederberg20
- Letter from Joshua Lederberg to Boris Rotman20
- Letter from Joshua Lederberg to Torbjorn Caspersson20
- Letter from M. Demerec to Tracy M. Sonneborn20
- Letter from Torbjorn Caspersson to Joshua Lederberg20
- Memorandum from Roland L. Peterson to United States. Bureau of Health Resources Development20
- [Brain Plate]20
- [NIH- NCI cancer research album 5.]20
- [William C. Gorgas]20
- Letter from Alexander Hollaender to Joshua Lederberg19
- Letter from Joshua Lederberg to A. D. Hershey19