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- Department of Agriculture[remove]217
- Weather Bureau51
- Office of Experiment Stations21
- Division of Statistics20
- Office of Road Inquiry13
- Division of Entomology12
- Section of Foreign Markets11
- Division of Botany7
- Bureau of Animal Industry6
- Division of Ornithology and Mammalogy6
- Division of Publications6
- Division of Agrostology4
- Library4
- Division of Forestry3
- Division of Agricultural Soils2
- Division of Chemistry2
- Division of Pomology1
- Division of Vegetable Pathology1
- Division of Vegetable Physiology and Pathology1
- Office of Fiber Investigations1