The Peak in Darien, With Some Other Inquiries Touching Concerns of the Soul and the Body An Octave of Essays

A Dissertation on the Books of Origen against Celsus

A Practical View of the Prevailing Religious System of Professed Christians, in the Middle and Higher Classes in this Country, Contrasted with Real Christianity.

Christianity Viewed in Relation to the Present State of Society and Opinion.

Christianity and Greek Philosophy or, the relation between spontaneous and reflective thought in Greece and the positive teaching of Christ and His Apostles

Christianity and Progress

Christians and Infidels

De Essentia Patris Et Filii Patrologiae Cursus Completus; Series Latini; Tomus X; Columns 887-888

Does civilization need religion?

In His Image

Lux Mundi: A Series of Studies in the Religion of the Incarnation, 10th Edition, 1890

Meditations on the Actual State of Christianity, and on the Attacks Which Are Now Being Made Upon It.