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Title: Ira Bowen with vacuum spectrograph.
Format: photograph: negative
Date: 1935
Series: Individuals, Bowen, Ira Sprague
Description: Ira Bowen at work with a vacuum spectrograph at Caltech. Work with this instrument was started at the University of Chicago in 1916 by Dr. Robert Millikan. It has been at use at Caltech since 1933. Investigations have been carried on in the structure of individual atoms such as flourine, chlorine, chromium, manganese and iron.

Title: Karl T. Compton, Lee DuBridge and Robert Millikan
Format: photograph: negative
Date: 1946-11-12
Series: Individuals, DuBridge, Lee A.
Description: DuBridge inauguration.

Title: Julie Harris with Lee and Arrola DuBridge
Format: photograph: print
Date: 1985-08
Series: Individuals, DuBridge, Lee A.
Description: Photo was taken at KCET by Mitzi Trumbo Photography, Los Angeles.

Title: Mr. Mountain, Isabel Morgan Mountain (daughter of Thomas Hunt Morgan) Alfred H. Sturtevant, Phoebe Sturtevant
Format: photograph: print
Date: 1966-09
Series: Individuals
Description: On the occasion of the Thomas Hunt Morgan Centennial, Lexington, KY.

Title: Exhibit of Robert A. Millikan memorabilia
Format: photograph: print
Series: Individuals

Title: George Beadle at AAAS meeting in Berkeley, CA
Format: photograph: print
Date: 1954-12-31
Series: Individuals, Beadle, George Wells
Description: Life Magazine photo by N. R. Farbman.

Title: William Fowler with HiY Club at Lima Central High School, Lima, OH
Format: photograph: print
Date: 1929
Series: Individuals, Folwer, William A.
Description: Willy Fowler who was president of the club is in the center of the front row.

Title: Lee DuBridge, formal pose
Format: photograph: print
Series: Individuals, DuBridge, Lee A.

Title: Arie Haagen-Smit, casual pose
Format: photograph: print
Series: Individuals

Title: Dr. and Mrs. Richard Chace Tolman at home
Format: photograph: print
Series: Individuals
Description: This house is now known as the Tolman-Bacher house.

Title: A. A. Prokofyeva-Belgovskaya
Format: photograph: print
Series: Individuals, Bridges, Calvin B.
Description: Taken in Russia.

Title: Robert Millikan and other members of the Oberlin College Glee Club
Format: photograph: print
Series: Individuals

Title: Sending balloons aloft in Bismarck, ND
Format: photograph: negative
Date: 1938
Series: Individuals

Title: Richard Chace Tolman at his desk
Format: photograph: negative
Series: Individuals

Title: Clark Millikan with model of DC-1 in GALCIT 10′ wind tunnel
Format: photograph: negative
Date: 1932
Series: Individuals

Title: Carl Anderson standing with equipment
Format: photograph: negative
Series: Individuals, Anderson, Carl D.

Title: George Ellery Hale, portrait
Format: photograph: negative
Date: 1921
Series: Individuals

Title: Greta B. Millikan, formal portrait
Format: photograph: print
Series: Individuals

Title: Greta B. Millikan, formal portrait
Format: photograph: negative
Series: Individuals

Title: Thomas Hunt Morgan in commencement procession
Format: photograph: print
Series: Individuals

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