Inclinations, human, [264] et seq.

Incompatibility of Science and Faith, [198] et seq.

Index of forbidden Books, [55], [169] et seq., [189], [196]

Individualism, [25], [28]

Infallibility, [76], [97] et seq., [109]

Innocent IV., [149]

Innocent VI., [151]

James, W., [48], [250], [268]

Janssen, J., [146], [149], [150], [156], [218]

Jesuit Order, [183], [359]