Author:William Jay Youmans

William Jay Youmans

United States chemist and physician

William Jay Youmans


Articles in Popular Science MonthlyEdit

Works about YoumansEdit


Works by this author published before January 1, 1927 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.