Reflex action defined, [113]; it refutes gnosticism, [140-1].

Regret, judgments of, [159].

Religion, natural, [52]; of humanity, [198].

Religious hypothesis, [25], [28], [51].

Religious minds, [40].

Renan, [170], [172].

Renouvier, [143].

Risks of belief or disbelief, ix, [26]; rules for minimizing, [94].

Romantic view of world, [324].

Romanticism, [172-3].