Date: | 1926 |
---|---|
Description: | Dr. Stephen Babcock with an electric centrifuge butterfat tester. |
Date: | 1930 |
---|---|
Description: | Telescope at Washburn Observatory with man at controls. |
If you didn't find the material you searched for, our Library Reference Staff can help.
Call our reference desk at 608-264-6535 or email us at: