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Keyword
- Agricultural History[remove]1
- Agricultural Science1
- Early 20th Century1
- Ellen Swallow Richards[remove]1
- Eugene Davenport1
- Experiment Station1
- Henry Prentiss Armsby[remove]1
- Land-Grant University Movement[remove]1
- Late 19th Century1
- Respiration Calorimeter1
- The Pennsylvania State University1
- Wilbur O. Atwater1