The American Roentgen Ray Society, 1900-1950 : commemorating the golden anniversary of the Society : organized as the Roentgen Society of the United States in Saint Louis, Monday, March 26, 1900 : First annual meeting, Grand Central Palace, New York, December 14-16, 1900 : Semi-centennial annual meeting, September 24-29, 1950, Saint Louis.
| American Roentgen Ray Society | Date: 1950