Affiliations Research 1923Head Of The Department Of BiologyAntioch College1924Professor Of BiologyAntioch College1925Professor Of BiologyAntioch College1927Professor Of BiologyAntioch College1920[position unknown]Harvard University1921[position unknown]Harvard University 1920Botany[role unknown]1921Botany[role unknown]1923Botany[role unknown]1924Botany[role unknown]1925Physiology[role unknown]1927[subject unknown][role unknown]