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Filters: National Pure Food and Drug CongressNorth Carolina Agricultural Experiment Station -- Professional employeesCaldwell, G. C.North Carolina College of Agriculture and Mechanic Arts -- FacultyNorth Carolina Academy of ScienceKnights Templar Masonic order. Grand Commandery N.C.American Chemical Society. North Carolina SectionNorth Carolina College of Agriculture and Mechanic Arts -- Faculty1870-1879North Carolina College of Agriculture and Mechanic Arts -- Faculty