| editor, The Biographical Dictionary of America… (1906)
“ John" (1888) ; "The Epistle of Paul to the Romans," with notes (1888) ; "Signs of Promise" (1889) ; "The Evolution of Christianity" (1892) ; "Life of Christ" (1894) ; "Christianity and Social Problems" (1896) ; "The Theology of an Evolutionist" (1897) ; "The Life and Epistles of Paul the Apostle" (1898) ; "The Life that Really Is" (1899) ; "Problems of Life" (1900) ”
