Titutos do vol.1: "Christianity and miracles at the present day, by Rev. Principal Cairns" ; "The historical evidence of the resurrection of Jesus Christ from the dead, by the Rev. C. A. Row" ; "Christ the central evidence of christianity, by the Rev. Principal Cairns" ; "Christianity and the life that now is, by the Rev. Professor G. Blaikie" ; "On the existence and character of God, by the Rev. C. A. Row" ; "The Success of christianity and modern explantions of it, by The Rev. Principal Cairns"

Titulos do vol.2: "Christianity and secularism compared in their influence and effects, W. G. Blaikie" ; "Agnosticism: a doctrine of despair, Noah Porter" ; "The antiquity of man historically considered, George Rawlinson" ; "The witness of Palestine to the Bible, by William G. Blaikie" ; "The early prevalence of monotheistic Beliefs, by George Rawlinson" ; "The witness of man's moral nature to Christianity, by J. Radford Thomson"

Titulos do vol.4: "Christianity: as history, doctrine and life, by Noah Porter" ; "The religious teachings of the sublime and beautiful nature, by George Rawlinson" ; "Ernest Renan and his criticism of the gospels, by W. G. Elmslie" ; "The Unity of the Character of the Christ of the Gospels, by C. A. Row" ; "The vitality of the Bible, by W. G. Blaikie" ; "Evidential Conclusions from the four greater epistles of St. Paul, by J. S. Howson"

Titulos do vol.8: "The claim of Christ on the conscience, by William Stevenson" ; "The doctrine of the atonement, by John Stoughton" ; "The resurrection of Jesus Christ,..., by R. McCheyne Edgar" ; "Buddhism: a comparison and a contrast between Buddhism and Christianity, by Henry Robert Reynolds" ; "Auguste Comte and the religion of humanity, by J. Radford Thomson" ; "The ethics of evolution examined, by James Iverach"

Titulos do vol.11: "Argument for christianity from the experience of christians, by Rev. Principal Cairns" ; "Egoism, altruism, and christian eudaimonism" ; "The two geologies - a contrast and a comparison, by W. Sunderland Lewis"; "The psalms - compared with the hymns of different religions an evidence of inspirations, by Rev. W. G. Blaikie" ; "The origin of life and consciousness, by Rev. Charles Chapman" ; "The influence of the christian religion in history, by T. E. Slater"

Titulos do vol. especial: "Christianity and secularism." ; "Agnosticism" ; "Modern materialism, by W. F. Wilkinsom" ; "The philosophy of the Herbert Spencer examined, by James Iverach" ; "Modern pessimism, bu J. Radford Thomson" ; "Utilitarism:..., by J. Radford Thomson" ; "Auguste Comte and the religion of humanity" ; "The ethics of evolution examined"