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Subjects
- Agriculture -- history[remove]3
- Agriculture -- instrumentation1
- Animal Diseases -- history1
- Animal Diseases -- prevention & control1
- Chemistry -- history1
- Foodborne Diseases -- prevention & control1
- Germany1
- Liebig, Justus, Freiherr von, 1803-1873.1
- Livestock1
- Nutritional Physiological Phenomena1
- Paintings1
- United States1
- United States Government Agencies -- history1
- United States. Bureau of Animal Industry1
