- McLean County Historical Society, Bloomington, Ill
- University of Illinois at Urbana-Champaign, University Library
A man tests seed germination inside a Funk building. At the Funk Brothers Seed Company, testing seed germination was a necessary step in the hybridization process. How we learn about communities; Communities and Geography; American Communities in History. 15 Economics; 16 History; 18 Social systems.
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