The Rockefeller Archive Center
01-01-1930
Simon Flexner, circa 1930sCourtesy of The Rockefeller Archive Center
https://digitalcommons.rockefeller.edu/context/chemistry-of-life/article/1002/viewcontent
http://digitalcommons.rockefeller.edu/chemistry-of-life/2
https://digitalcommons.rockefeller.edu/context/chemistry-of-life/article/1002/type/native/viewcontent