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A senior class in bacteriology in the Dairy building at Iowa State College. Studets are counting bacteria in milk before and after pasteurization
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A senior class in bacteriology in the Dairy building at Iowa State College. Studets are counting bacteria in milk before and after pasteurization

Delano, Jack · 1942-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
iowasafety film negativesstory countyamesunited states
Credit lineA senior class in bacteriology in the Dairy building at Iowa State College. Studets are counting bacteria in milk before and after pasteurization. 1942-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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