History of Rationalism Embracing a Survey of the Present State of Protestant Theology

The Confutatio Pontificia

A History of Freedom of Thought

Versuch einer Kritik aller Offenbarung

Protestantism and Catholicity compared in their effects on the civilization of Europe

St. Paul and Protestantism, with an Essay on Puritanism and the Church of England

El Protestantismo comparado con el Catolicismo en sus relaciones con la Civilización Europea (Vols 1-2)