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- Plant Industry Bureau392
- Animal Industry Bureau227
- Entomology Bureau202
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- Forest Service33
- Dairy Industry Bureau29
- Dairying Bureau22
- Chemistry Bureau9
- Chemistry and Soils Bureau9
- Information Office9
- Entomolgy Bureau6
- Cooperative Extension Work Office4
- Soils Bureau2
- Weather Bureau2
- Editorial and Distribution Work Offices1
- Experiment Stations Office1