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- Agriculture Department16,468
- Plant Industry Bureau12
- Publications Division9
- Animal Industry Bureau3
- Entomology Bureau2
- Experiment Stations Office2
- Biological Survey Bureau1
- Civil Service Commission1
- Food and Drug Inspection Board1
- Forest Service1
- Public Roads Office1
- Soils Bureau1
- Soils Bureau and Vegetable Physiology and Pathology Division1
- Solicitor of Department of Agriculture1