The Caltech Institute Archives

About the Repository


Lab Notes Online presents historic scientific data from the Caltech Archives' collections in digital facsimile. Beginning in the fall of 2008, the first publication in the series is Robert A. Millikan's notebooks for his oil drop experiments to measure the charge of the electron, dating from October 1911 to April 1912. Other laboratory, field, or research notes will be added to the archive over time.

For complete information about the Caltech Archives' collections and access to them, please consult the Archives' web site or contact us by email: archives (at)

This project is part of the Caltech Collection of Open Digital Archives (CODA), hosted by Caltech Library. The mission of CODA is to collect, manage, preserve and provide global access over time to the scholarly output of the Institute and the publications of campus units. All CODA projects are Open Archives Initiative (OAI) compliant data providers.

Viewing the Documents

For best results, view the documents with Adobe Acrobat 6.0 or higher.

General Copyright Notice

Copyright may not have been assigned to the California Institute of Technology Archives. All requests for permission to publish or quote from digital archives must be submitted in writing to the Caltech Archivist. Permission for publication is given on behalf of the California Institute of Technology Archives as the owner of the physical items and, unless explicitly stated otherwise, is not intended to include or imply permission of the copyright holder, if separate from Caltech. Obtaining copyright permissions is the responsibility of the user.

Policy Documents: These include the Submission Procedure, Author Permission Form and Archive Policy Document.


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Contact Information

Any correspondence concerning this specific repository should be sent to