Skip to main content

Ira Bowen with vacuum spectrograph., 1935

Identifier: 1.2.2-2
Ira Bowen with vacuum spectrograph. still image
Ira Bowen with vacuum spectrograph. still image

Scope and Contents

From the File:

This folder includes Bowen's apparatus


  • Creation: 1935

Conditions Governing Access

For more information consult the Caltech Archives Reproduction and Permissions.


1 photographs (negative)

Language of Materials

From the Collection: English


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.

Repository Details

Part of the California Institute of Technology Archives and Special Collections Repository

1200 East California Blvd.
MC B215-74
Pasadena California 91125 United States of America
(626) 395-2704