Half-length portrait photograph of American scientific writer, editor and lecturer Edward Livingston Youmans (1821-1887) who founded Popular Science magazine. Youman experienced partial blindness at age 17, which lasted until he was about 30 years old. This portrait photograph dates from when Youmans was 30 years old.
This frontispiece engraving comes from Edward Livingston Youmans, Interpreter of Science for the People by John Fiske (1842-1901).
Fiske, John. “Portrait of Edward Livingston Youmans.” Edward Livingston Youmans, Interpreter of Science for the People. New York, New York: D. Appleton and Company, 1851–1894. https://digital.sciencehistory.org/works/b7qmols.