Stebbins Photometer, for the 12-inch refractor: view of the interior of the electrometer, ca. 1926

Select what you would like to download. If choosing to download a file, please select the file format you wish to download. Please note full item download may take several minutes (PDF only).

Certain download types may have been restricted by the site administrator.

Select the item elements you would like to include in the embed code.