File:Fed alive to mosquitoes. Washington, D.C., April 24. One of the unsung heroes of the government service is Carroll Smith, research expert in equine fever in the Bureau of Entomology, LCCN2016871517.jpg
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Categories:
- Entomologists at work
- Entomologists from the United States
- April 1937 in Washington, D.C.
- People of the United States Department of Agriculture
- Black and white photographs of men at work
- Black and white photographs of Washington, D.C. in the 1930s
- Men at work in the 1930s
- Men at work in Washington, D.C.
- Men of the United States in 1937
- 1937 black and white photographs of people
- Scientists in 1937
- Smith (surname)
- Carroll (given name)