- A Philosophical Dictionary, Volume 6
- The Idea of God in Early Religions
- Child's Story of the Bible
- A History of Art in Chaldæa & Assyria, v. 1
- The Words of Jesus
- Forbidden books of the original New Testament
- Mark Twain's Letters — Volume 4 (1886-1900)
- A Philosophical Dictionary, Volume 9
- Selections from the Table Talk of Martin Luther
- The Buddhist Catechism
- Modern English Books of Power
- God and the World
- De Lotgevallen van Tom Sawyer
- Mohammedanism
- Letters from Egypt
- The Imitation of Christ
- The Future of Islam
- Hymns for Christian Devotion
- Hope of the Gospel
- The Religions of India
- Commentary on the Epistle to the Galatians
- Atheism Among the People
- History of the Catholic Church from the Renaissance to the French Revolution — Volume 2
- A Voice of Warning
- Thoughts on Religion
- Religion and Theology: A Sermon for the Times
- Food for the Lambs; or, Helps for Young Christians
- Avatâras
- The Prayers of St. Paul
- Christ, Christianity and the Bible
- The Mind of Jesus
- A Little Book for Christmas
- A Brief Account of the Rise and Progress of the People Called Quakers
- Half Hours in Bible Lands, Volume 2
- Half Hours in Bible Lands, Volume 2
- The Invention of a New Religion
- Quit Your Worrying!
- Answers to Prayer
- Who Wrote the Bible? : a Book for the People
- The Oxford Movement
- She and Allan
- The Happiness of Heaven
- Men of the Bible
- The Book of Religions
- Cenci
- Jesus Himself'
- The Way of Peace
- Companion to the Bible
- The Religions of Japan
- A Philosophical Dictionary, Volume 3
- Christ
- Legends of the Gods
- The Good News of God
- The Dairyman's Daughter
- Christianity and Greek Philosophy
- The Vital Message
- Myth, Ritual and Religion — Volume 1
- Every Girl's Book
- The suppressed Gospels and Epistles of the original New Testament of Jesus the Christ, Volume 5, St....
- Palestine or the Holy Land
- Writings of Thomas Paine — Volume 4 (1794-1796): the Age of Reason
- Religions of Ancient China
- How to become like Christ
- What is Darwinism?
- The Excellence of the Rosary
- Introduction to the History of Religions
- The Atonement and the Modern Mind
- The Trial and Death of Jesus Christ
- Personal Friendships of Jesus
- Answer to Dr. Priestley's Letters to a Philosophical Unbeliever
- Bible Romances
- The Canon of the Bible
- The Essentials of Spirituality
- The Pocket Bible or Christian the Printer
- His Life
- A Critical Exposition of the Popular 'Jihád'
- A Short History of the Book of Common Prayer
- The Church and the Barbarians
- The International Spy
- Zionism and Anti-Semitism
- Old Testament Legends
- Spiritual Life and the Word of God
- The Life of David
- Miracles of Our Lord
- Ten Great Religions
- American Lutheranism
- The Book of Mormon
- The Person and Work of The Holy Spirit
- Brazilian Sketches
- Expositions of Holy Scripture
- No and Yes
- Communism and Christianism
- The Women of the Arabs
- How to Live a Holy Life
- Through the Magic Door
- Morning and Evening Prayers for All Days of the Week
- History of Religion
- The Kingdom of God Is Within You
- Theologico-Political Treatise — Part 1
- The Soul of a People