E.V. Cowdry with three unidentified men, one of whom is opening a document.
E.V. Cowdry and an unidentified man speaking at a podium onstage, with three other men seated behind them.
E.V. Cowdry standing in a group of men, some of whom are holding cocktails.
E.V. Cowdry and three unidentified people standing around a table examining a document.
E.V. Cowdry and two unidentified men observing a piece of laboratory equipment.
Two unidentified men, M.G. Seelig, and E.V. Cowdry examining a document.
Lee D. Cady and E.V. Cowdry conversing at Cady's desk.
Group portrait of Roy G. Hoskins, Frank J. Lewis, Frank J. Hale, Reuben Kahn, Ernest W. Burgess, George S. Sperti, and E.V. Cowdry in tuxedos.
E.V. Cowdry and three unidentified people looking at a document.
E.V. Cowdry and four unidentified men standing before the doorway of the Sorbonne, Paris, France.
E.V. Cowdry and five other doctors looking at a chart titled "minerals in mouse carcinogenesis."
Unidentified man handing E.V. Cowdry a document in a laboratory setting, Fourth International Cancer Research Congress, St. Louis, Missouri.
Unidentified man handing E.V. Cowdry an envelope and a decorated canister.
Group portrait of E.V. Cowdry and seven other men.
Group portrait of E.V. Cowdry and seven other men.
E.V. Cowdry, accepting an envelope and a decorated canister, and two unidentified men.
Doctors seated around a table with microphones on it, likely conducting an interview or radio broadcast.
Overhead view of audience participants seated in an auditorium for the Fourth International Cancer Research Congress, St. Louis, Missouri.
Overhead view of audience participants seated in an auditorium for the Fourth International Cancer Research Congress, St. Louis, Missouri.
Overhead view of mingling guests at the Fourth International Cancer Research Congress, St. Louis, Missouri.