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- Plant Industry Bureau1,313
- Agriculture Department868
- Animal Industry Bureau758
- Entomology Bureau407
- Agricultural Economics Bureau280
- Biological Survey Bureau192
- Entomology and Plant Quarantine Bureau186
- Forest Service145
- Dairy Industry Bureau136
- Home Economics Bureau133
- Public Roads Bureau107
- Agricultural Engineering Bureau104
- Chemistry and Soils Bureau71
- Soil Conservation Service50
- Plant Industry, Soils, and Agricultural Engineering Bureau42
- Information Office26
- Dairying Bureau22
- Agricultural Chemistry and Engineering Bureau21
- Cooperative Extension Work Office13
- Weather Bureau13