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Astronomers’ meeting--Mt. Wilson
Mosaic depicting the death of Archimedes
Jakob J. Laub
Ralph Arnold
Seventh Solvay Conference
Dorothy Hodgkin
Marie Curie
James Joseph Sylvester, 1814-1897
Josiah Willard Gibbs, 1839-1903
Portrait of Ernest Rutherford (1871-1937)
Thomas A. Edison, Henry Ford and Francis Jehl
Biology group at Shelter Island
200″ “fork” in construction
A session at the Space Conference: The Future of Space Explorations
Historical Pasadena: Colorado Blvd. looking east from Raymond Ave.
The first hydrogen balloon, 1783
Wolfgang Pauli
Astronomers’ meeting--Pasadena
Charles Jean De La Vallee-Poussin, 1866-1962