V. 1 : Volumen I :
The Study of Religions by L. De Grandmaison ;
China by L. Wieger ;
Celtic Religions by Prof. J. M'Neill ;
Buddhism by Prof. L. De La Vallée Poussin ;
Hinduism by Ernest R. Hull ;
Babylonia And Assyria by A. Condamin ;
Ancient Syria by the Rev. G. S. Hitchcock ;
Egypt by Alexis Mallon

V. 2 : Volumen II :
The Great Kings by the Rt. Rev. Dr L. C. Casartelli ;
The Avesta by Prof. A. Carnoy ;
Ancient Greece by J. Huby ;
The Athenian Philosophers by Henry Browne ;
Early Rome by C. C. Martindale ;
Imperial Rome by C. C. Martindale ;
Ancient King-Worship by C. Lattey ;
Mithra by C. C. Martindale

V. 3 : Volumen III :
The Hebrew Bible by the Rev. G. S. Hitchcock ;
The Greek Testament by C. C. Martindale ;
The Early Church by C. Lattey ;
St Augustine by C. C. Martindale ;
Gregory VII by Dr Adrian Fortescue ;
Aquinas by the Very Rev. Vicent McNabb ;
The Council of Trent by the Very Rev. Mgr. C. J. Cronin ;
The Modern Papacy edited by Joseph Rickaby

V. 4 : Volumen IV :
Eastern Churches by Dr Adrian Fortescue ;
The Korân by E. Power ;
The Thirty-Nine Articles by the Rev. A. H. Lang ;
Lutheranism by J. Bourg ;
Wesleyanism by A. Burbridge ;
Presbyterianism by M. Power ;
Modern Judaism by the Rev. G. S. Hitchcock ;
Unitarianism by the Rev. G. S. Hitchcock

V. 5 : Volumen V :
The Religion of "Primitive" races by Mgr. A. Le Roy ;
The Religions of Japan by A. Dahlmann;
Theosophy by L. de Grandmaison ;
Spiritualism by Mgr. R. H. Benson ;
Christian Science by H. Thurston ;
The cults and christianity; Conclusion by C. C. Martindale ;
INDEX