Public domain
A senior class in bacteriology in the dairy building at Iowa State College. Students are counting the bacteria in milk before and after pasteurization. Ames, Iowa
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineA senior class in bacteriology in the dairy building at Iowa State College. Students are counting the bacteria in milk before and after pasteurization. Ames, Iowa. 1942-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
Similar works
Brushing up. Apprentices study drafting-room technique in classes at an eastern arsenal. Every kind of skill is going into preparation for war work
Washington, D.C. The U.S. Weather Bureau station at the National Airport
Untitled photo, possibly related to: School scene at Cumberland Mountain Farms (Skyline Farms) near Scottsboro, Alabama
U.S. Naval Academy, Annapolis, Maryland. Classroom instruction
Untitled photo, possibly related to: U.S. Naval Academy, Annapolis, Maryland. Classroom instruction
The mapping and drafting section of the Division of Economics and Statistics visualizes information on housing and mortgage lending conditions, in some cases for country as a whole and in others by as small a geographical unit as the city block