Bible Morality (1873)
Christianity And Civilization (1880)
The Claims Of Christianity Examined From A Rationalist Standpoint (1895)
The Death Of Christ (1896)
Discreditable Tactics Of Christian Disputants (1880)
Evolution And Special Creation (1880)
The Existence Of God; or Questions For Theists (1894)
Is There Life Beyond The Grave? (1894)
The Origin, Nature, and Destiny of Man
Secular Morality: What Is It? (1880)
Secularism: Its Relation To The Social Problems Of The Day (1894)
The Secularist's Catechism (1896)
Was Christ A Political And Social Reformer?
Why Do Right? A Secularist's Answer