Christianity

A Treatise on Relics

Christianity as Mystical Fact, and the Mysteries of Antiquity

The Cult of the Saints

Letters of Dionysius the Areopagite

The Collected Works – Theodore Parker's Prayers

The Life of Trust

Epistles of St. Ignatius

Unitarian Christianity

An Admonition showing, the Advantages which Christendom might derive from an Inventory of Relics

Awful Disclosures of the Hotel Dieu Nunnery of Montreal

The Aquarian Gospel of Jesus Christ

The Labyrinth of the World and the Paradise of the Heart

The Maxims and Sayings of St. Philip Neri

Eight Homilies Against the Jews

Testimonies to Ministers and Gospel Workers

Unitarianism in America

The Political Teachings of Jesus

The Greatest Religious Novels of All Time

Knowing God

The Large and Small Catechisms