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Photograph

Laboratory Experiment

Date: 1928
Description: Professor Hull conducting an experiment at the Psychological laboratory of the University of Wisconsin.
Photograph

Dr. Babcock with Butterfat Tester

Date: 1926
Description: Dr. Stephen Babcock with an electric centrifuge butterfat tester.
Photograph

Nutrition Lab

Date: 1931
Description: Two students work in the nutrition lab at the University of Wisconsin-Madison.
Photograph

Forest Products Laboratory

Date: 1933
Description: The Forest Products Laboratory.
Photograph

Babcock Ceremony

Date: 1928
Description: Crowd seated on the lawn of Agriculture Hall on the University of Wisconsin-Madison for a ceremony honoring S.M. Babcock, inventor of the butter test.
Photograph

S.M. Babcock and Tester

Date: 06 09 1928
Description: S.M. Babcock, on the right, and his original milk butterfat tester at an honorary ceremony.

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