Describing Ed Tatum as a scientist, advisor, and friend.
Expectations on whether the Neurospora experiments would work and what results they might show.
The attributes of great scientists.
Joshua Lederberg's baby picture.
The Nobel moment: how he was informed that he had won the Nobel prize.
How his reading of the Avery, McCarty & McLeod paper motivated him to begin research into understanding the chemical nature of the gene.
Designing the experiments that uncovered bacterial conjugation: theory-driven versus data-driven experiments.
Bacteria and viruses have DNA too.
Joshua Lederberg using a microtome to cut tissue sections, 1941.
Lederberg in his naval reserves uniform, 1943.