McKinley Building - Fixed Nitrogen Laboratory
American University (Washington, D.C.) -- Buildings -- History
View of McKinley Building with sign reading "U.S. Dept of Agric. Fixed Nitrogen Laboratory"
American University Library. Archives and Special Collections.
Reproduction and copyright information regarding this image is available from the American University Library -- Special Collections.
IsPartOf: American University Historical Photographs Collection
United States -- District of Columbia -- Washington