Irrationalism, [285]–86

Isaac, [21], [23], [26]

Isidorean decretals, the, [178]–82

—— Encyclopædia, [232]

Isis, cult of, [33], [37], [56], [57], [76], [106], [185]

Islam. See Mohammedanism

Italy under Christianity, [160], [165], [177], [186], [229], [235] sq., [248], [251], [270], [294]; rationalism in, [189], [268], [275], [295]

Jacob, [21]

Jacobites, sect of, [149] James, Epistle of, [18]

James, W., [285]