King Solomon's Goat

Humboldt From 'The Gods and Other Lectures'

Letters To Eugenia; Or, A Preservative Against Religious Prejudices

Mistakes of Moses

The Works of Robert G. Ingersoll, Vol. 11 (of 12) Dresden Edition—Miscellany

The Ghosts, and Other Lectures

Christianity: Its Evidences, Its Origin, Its Morality, Its History

The Works of Robert G. Ingersoll, Vol. 06 (of 12) Dresden Edition—Discussions

Heretics And Heresies From 'The Gods and Other Lectures'

The Works of Robert G. Ingersoll, Vol. 07 (of 12) Dresden Edition—Discussions

The Works of Robert G. Ingersoll, Vol. 02 (of 12) Dresden Edition—Lectures

Thoughts on the Christian Religion, by a Deist To Which Are Added, a Few Ideas on Miraculous Conversion, and Religion in General, by a Theophilanthropist