Public domain
BACTERIOLOGY. BACTERIOLOGIST AT G.W. UNIVERSITY WHO WAS SUPPOSED TO HAVE DISCOVERED T.B. GERM
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
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Credit lineBACTERIOLOGY. BACTERIOLOGIST AT G.W. UNIVERSITY WHO WAS SUPPOSED TO HAVE DISCOVERED T.B. GERM. 1916-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.